Topic 9 of 92: Seismology: Earthquakes - The Science and Updates on Current Activity
Sat, Jul 10, 1999 (23:39) |
Marcia (MarciaH)
Earthquakes are monitored world wide. When the earth moves under you feet and you do not know why, look here for your local update.
637 responses total.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 1 of 637: Wolf (wolf) * Sun, Jul 11, 1999 (17:31) * 1 lines
Is there a site where we can find current faultlines?
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 2 of 637: Marcia (MarciaH) * Sun, Jul 11, 1999 (19:03) * 5 lines
The quick answer is there is no good one that I know of but have sent the request to my family expert. Usually they appear as a line of earthquakes as in
http://www.geophys.washington.edu/CNSS/us.epi.gif
I will search it further. At this URL you will find links to your area which is about as stable as it is possible to get. Water is your enemy, not the earth beneath it! http://quake.wr.usgs.gov/QUAKES/CURRENT/current.html
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 3 of 637: Marcia (MarciaH) * Sun, Jul 11, 1999 (19:15) * 19 lines
For my current seismic activity for my location Check out the zoomable map at the bottom of the page.
http://quake.wr.usgs.gov/cgi-bin/quake/tako.wr.usgs.gov/db=usa/river=1/fed.=1
YY MM DD HH MM SS Lat Long Depth Mag Q Point of Reference
|| || || || || || ||.|| |||.|| ||.| |.| |
99/07/08 02:55:54 19.32N 155.09W 5.1 2.6MGN B* 5 mi. S of Puu O'O
99/07/08 03:04:16 19.33N 155.09W 2.3 2.6MGN B* 4 mi. S of Puu O'O
99/07/08 07:49:36 19.19N 155.45W 18.3 2.0MGN C* 2 mi. ESE of Pahala
99/07/08 16:38:48 19.73N 155.80W 0.9 2.4MLG B* 15 mi. ENE of Kailua-Kona
99/07/10 09:27:57 19.34N 155.13W 0.3 2.3MGN A* 4 mi. SSW of Puu O'O
99/07/10 12:53:58 19.33N 155.12W 3.3 2.2MGN C* 4 mi. SSW of Puu O'O
99/07/10 13:09:45 19.70N 155.82W 31.3 2.2MLG B* 13 mi. ENE of Kailua-Kona
99/07/10 15:52:23 19.36N 155.08W 1.4 2.3MGN B* 2 mi. SE of Puu O'O
99/07/10 22:44:05 19.49N 155.35W 14.7 2.0MGN A* 18 mi. WNW of Puu O'O
99/07/10 23:09:06 19.35N 155.07W 1.8 2.5MGN B* 3 mi. SE of Puu O'O
----------------------------------------------
<> Last update was on 10-JUL-1999 23:11 HST
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Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 4 of 637: Marcia (MarciaH) * Sun, Jul 11, 1999 (21:48) * 17 lines
David has come through for me and here are his suggestions for fault maps:
There are several related sources. You may like the ABAG site with
forecast damage estimate maps:
http://www.abag.ca.gov/bayarea/eqmaps/eqmaps.html
and
http://www.geophys.washington.edu/seismosurfing.html
The best simple fault map is on the CA quake pages at:
http://quake.wr.usgs.gov/recenteqs/
Be sure to check the Bay Area version cause it has lots of what folks will
want to see.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 5 of 637: lidya maccarthy (livamago) * Tue, Jul 13, 1999 (22:08) * 1 lines
Marcia, there was some seismic activity in Central America this weekend. Can you find the particulars? I had conflicting reports.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 6 of 637: Marcia (MarciaH) * Tue, Jul 13, 1999 (23:21) * 7 lines
There were two Earthquakes in Honduras:
99/07/11 20:09:21 15.71N 88.51W 10.0 4.4Mb B HONDURAS
99/07/11 20:17:25 15.29N 88.38W 10.0 4.3Mb B HONDURAS
Maps and more information is available at
http://quake.wr.usgs.gov/cgi-bin/quake/
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 7 of 637: Marcia (MarciaH) * Tue, Jul 13, 1999 (23:21) * 7 lines
There were two Earthquakes in Honduras:
99/07/11 20:09:21 15.71N 88.51W 10.0 4.4Mb B HONDURAS
99/07/11 20:17:25 15.29N 88.38W 10.0 4.3Mb B HONDURAS
Maps and more information is available at
http://quake.wr.usgs.gov/cgi-bin/quake/
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 8 of 637: Gi (patas) * Tue, Jul 27, 1999 (08:35) * 3 lines
Lisbon is in a seysmic zone, and after the "big one" in 1755 that was followed by a tidal wave and fires that dertroyed most of the city, we have never felt quite safe again.
There was a reasonably strong earthquake in 1968 (I'm writing from memory and haven't checked the particulars so cannot give you any numbers)but people say it "wasn't it", they still fear a bigger one!
I was very young and living in Madeira in 68, but woke up in the night and felt the quake.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 9 of 637: Wolf (wolf) * Tue, Jul 27, 1999 (09:59) * 1 lines
when my father was stationed in san francisco, we had an earth tremor. just a baby at the time, so i remember nothing about it.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 10 of 637: Marcia (MarciaH) * Tue, Jul 27, 1999 (13:02) * 1 lines
You need to move to a more active place than you are now...You have just about no chance of feeling a really fun Earth quake in La Belle Lousiana
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 11 of 637: Wolf (wolf) * Tue, Jul 27, 1999 (17:31) * 1 lines
no thanks, that's one experience i think i'll pass on (i mean, no guarantees, right?)
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 12 of 637: Marcia (MarciaH) * Tue, Jul 27, 1999 (18:32) * 1 lines
The only guarantee is No Guarantees!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 13 of 637: wer (KitchenManager) * Tue, Jul 27, 1999 (20:09) * 1 lines
kind of like posting on the Spring...
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 14 of 637: Wolf (wolf) * Tue, Jul 27, 1999 (20:13) * 1 lines
so true, we're lucky to stay on topic!!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 15 of 637: wer (KitchenManager) * Tue, Jul 27, 1999 (20:49) * 3 lines
we're lucky if we can still keep
it in sight while we're straying
away!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 16 of 637: Marcia (MarciaH) * Tue, Jul 27, 1999 (20:56) * 1 lines
That's odd. I thought we were posting on the Spring (as I drag my seismograph and stand along behind me...)
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 17 of 637: wer (KitchenManager) * Tue, Jul 27, 1999 (22:50) * 1 lines
any conclusions yet?
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 18 of 637: Karen (KarenR) * Wed, Jul 28, 1999 (00:18) * 2 lines
You have just about no chance of feeling a really fun Earth quake in La Belle Lousiana
Now hold your beignets! They could probably feel something from that New Madras fault. A long, long time ago, when I was visiting older sis in college down at U ofI, I got woken up by earth tremors coming from that region. Chicago can get them, so they probably head south as well.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 19 of 637: Karen (KarenR) * Wed, Jul 28, 1999 (00:23) * 1 lines
...unless it's too soggy down there
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 20 of 637: Marcia (MarciaH) * Wed, Jul 28, 1999 (10:55) * 3 lines
(Karen)...unless it's too soggy down there
That's my guess. It mostly depends on your substrate. If you are on the same plate and the same portion of the bedrock, you will be able to feel a strong one from quite far away. It is on this principle that seismographs work. The ones at the epicenter are knocked off-line almost instantaneously with a local earthquake, so the magnitude and epicenter have to be extrapolated from the data obtained from the network of Seismic stations around the world. At the Hawaii Volcanoes Observatory, where ours are
located, the Good Friday quake in Alaska some years ago made a very impressive readout. I think it is still on display. However, that said, the New Madrid Fault quakes have changed the course of the Mississippi, so it just might have been felt in Lousiana, despite the dampening effect of the bog on which it sits.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 21 of 637: Karen (KarenR) * Wed, Jul 28, 1999 (12:25) * 5 lines
New Madrid, well, I knew it started with an M!! Strange though that I did a search on Yahoo! and an article there talked about the New Madras Fault as well. According to these two site, the fault cuts across 5 states, but none mentioned affecting Louisiana, excepting as you said Marcia the course of the Mississippi!!
http://www.ceri.memphis.edu/www/public_info/faultfacts.html
http://quake.ualr.edu/public/nmfz.htm
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 22 of 637: Marcia (MarciaH) * Wed, Jul 28, 1999 (15:48) * 1 lines
Oh Karen..thanks for the links. For those not knowing, Madrid in Spain is not the way they pronounce it for the New Madrid Fault. This case is pronounced MAA-drid (accent on the first syllable.)
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 23 of 637: Karen (KarenR) * Wed, Jul 28, 1999 (16:22) * 3 lines
I was going to mention the difference in pronunciation (as all foreign place names in the Midwest), but didn't think Geo was the place. ;-D Although, I would add another D in there. MAAD-drid.
My fav is upriver in Cairo, Il. You know how that's pronounced? BTW, we're relevant here as Cairo is along the fault line.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 24 of 637: Karen (KarenR) * Wed, Jul 28, 1999 (16:24) * 1 lines
Wolf could add the La. versions of French words, like the street names in Nawlins.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 25 of 637: Marcia (MarciaH) * Wed, Jul 28, 1999 (19:40) * 2 lines
KAY row we all have our regional peculiarities. In Maine Calais is pronounced
Callous (like on the bottom of your foot!)
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 26 of 637: Gi (patas) * Thu, Jul 29, 1999 (03:16) * 1 lines
WoW! I like to learn these things to. To talk of such places with the right pronunciation makes one sound *very* cool! (Like one has been there) ;-)
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 27 of 637: Marcia (MarciaH) * Thu, Jul 29, 1999 (11:47) * 1 lines
(Fun, is it not!!) In Pennsylvania they are very capricious with their French place-names. Charleroi (Charles-le-Roi) is pronounced the French way (excepting the roi part which is pronounced roy), but DuBois is DOO bose. Amazing!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 28 of 637: Karen (KarenR) * Thu, Jul 29, 1999 (14:01) * 1 lines
In Wisconsin (or is it Michigan or maybe it's Illi-NWA), there is a Charlesvoix, pronounced: SHAR-le-voy. A little bit of both.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 29 of 637: Karen (KarenR) * Thu, Jul 29, 1999 (14:08) * 1 lines
Another: in Illi-NWA, we have a lot of French place names because of Joliet and Champlain--one of them was a Pere, forget which). South of Chicago, is Bourbonnais. Have heard it pronounced: Bur-BON-is and Bur-bon-aze.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 30 of 637: Karen (KarenR) * Thu, Jul 29, 1999 (14:10) * 1 lines
and Marseilles, which is of course: Mar-SAILS
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 31 of 637: Wolf (wolf) * Thu, Jul 29, 1999 (17:51) * 1 lines
well, and then there's nacogdotches and nacodetches (or something like that). in LA, it's nack-ah-dish and in texas, it's nack-ah-doe-chez. i think they're even spelled the same way!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 32 of 637: Marcia (MarciaH) * Thu, Jul 29, 1999 (18:37) * 1 lines
Ok, people, admit it. When you wear the cloth of kings (whether wide wale or narrow) you call it Cor-doo-roy or Cor-der-roy ...not Cord-Du-Roi
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 33 of 637: Wolf (wolf) * Thu, Jul 29, 1999 (18:42) * 1 lines
i call it yucky! *smile*
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 34 of 637: Karen (KarenR) * Thu, Jul 29, 1999 (19:25) * 4 lines
oops, and it was Pere Marquette in that little canoe...
you call it Cor-doo-roy or Cor-der-roy ...not Cord-Du-Roi
depends on if it's been good or bad and if it's going to get any supper that night! ;-p
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 35 of 637: Marcia (MarciaH) * Fri, Jul 30, 1999 (00:03) * 1 lines
*lol* how do you think up these comments! Especially after a ziooion hours a day doing this - like me - but I am almost brain-dead at this point.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 36 of 637: Karen (KarenR) * Sun, Aug 8, 1999 (17:59) * 1 lines
Being brain-dead is a requirement. ;-p
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 37 of 637: Marcia (MarciaH) * Sun, Aug 8, 1999 (18:45) * 1 lines
You know, I wondered about those electrodes they afixed to my scalp before turning this Conference over to my care. No business going on in here - I think I'll go up to the observatory and jump up and down on their seiso-cables. You see tourist and little kids doing that all the time. Very funny! And quite undetectable.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 38 of 637: Marcia (MarciaH) * Fri, Aug 13, 1999 (14:14) * 3 lines
Here is an excellent source of information for teachers (which also means parents) This particular issue is about Natural Disasters and overcoming
science myths (that is what they said!)
http://www.earthsky.com/Teachers/Booklet/natural_disasters.html
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 39 of 637: wer (KitchenManager) * Fri, Aug 13, 1999 (23:34) * 2 lines
I wonder if ratthing heard that...and what he'd
have to say on the topic of "science myths"...?
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 40 of 637: Marcia (MarciaH) * Fri, Aug 13, 1999 (23:41) * 1 lines
I wondered about that, too. I was busy today so I did not check out the URL as thoroughly as I usually do...shall report tomorrow...stayed tuned!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 41 of 637: Marcia (MarciaH) * Mon, Aug 16, 1999 (19:49) * 1 lines
We have just experienced a 4.5 Earthquake. I thought a hurricane would be about all I needed to make my day complete...until now!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 42 of 637: Karen (KarenR) * Tue, Aug 17, 1999 (18:12) * 1 lines
Nothing on the 7.1 earthquake in Turkey? Get out of the Bath, Marcia! ;-o
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 43 of 637: Marcia (MarciaH) * Tue, Aug 17, 1999 (20:42) * 2 lines
I was waiting to see if anyone else was aware of it while I waited for Cal Tech to update their stuff and give me something more substantial to post. Willl check in again and post what I can find.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 44 of 637: Wolf (wolf) * Tue, Aug 17, 1999 (21:15) * 1 lines
msn on line is reporting 1000 dead but the news says 2000 and thousands missing. they're having aftershocks and fear an even bigger quake during the night. let's pray not.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 45 of 637: Marcia (MarciaH) * Tue, Aug 17, 1999 (21:31) * 158 lines
Since the Earthquake resources are still not reporting anything, I went to The Times of London for information:
http://www.sunday-times.co.uk:80/news/pages/Times/frontpage.html?1319194
bul toll rises to more than 2,000
©
A young girl is carried out of the wreckage of her demolished
home in Istanbul after the quake yesterday
Photograph: AP
Turks call for
earthquake aid
BY ANDREW FINKEL IN IZMIT
TURKEY was counting its dead yesterday after a
major earthquake devastated western parts of the
country. More than 2,000 people are believed to
have been killed over a wide area from the
extreme western Istanbul suburb of Halkali to Asia
and the industrial city of Izmit about 60 miles to the
east. At least 11,000 are thought to have been
injured.
Survivors tore at mangled steel and concrete to
free loved ones, and officials asked the
international community to send sniffer dogs and
lifting equipment to help in the rescue.
The whole region shook for 45 seconds at 3.02 am
local time (1.02 BST) yesterday, driving millions of
people from their beds out into the street. Turkish
seismologists calculated the initial tremor at 6.7 on
the Richter scale. But the British Geological
Survey, Harvard University and other centres
around the world later calculated the magnitude as
at least 7.5.
The tremor was felt with violent intensity in the
capital Ankara, some 270 miles from the epicentre
in a fault segment running from Izmit to Lake
Sapanca.
Bulent Ecevit, the Turkish Prime Minister,
appeared close to tears during a visit to
devastated towns. "The loss is huge," he said in a
trembling voice."It is the biggest natural disaster I
have witnessed. May Allah help our state and our
people."
Most of the
those who died
were killed as
they slept when
substandard
buildings
collapsed. The
Istanbul
neighbourhood
of Avcilar, far
from the
epicentre, was
badly hit.
The stricken region also includes Yalova, Bursa,
Adapazari, Bolu and Eskisehir - an area which
defines the industrial and commercial heartland of
Turkey and to emphasise the point smoke billowed
from the country's main oil refinery at Izmet.
The naval base at Golcuk across Izmit Bay was
also badly hit. A handover of command ceremony
had taken place on Monday and many high-ranking
officers had decided to stay overnight. Twenty
bodies were recovered and more than 200 were
missing feared dead.
While most of the structural damage was to blocks
of flats, the early 16th-century Beyazid Mosque in
Istanbul was one of the few historical buildings to
suffer substantial damage.
Along the highway approach to Izmit, some
apartment blocks looked as if someone had taken
an axe to split them in two, and the force of the
quake turned one five-storey block in the town of
Korfez on to its side. Other buildings simply
collapsed one floor on top of the other with
mattresses and carpets sticking out at the end to
define the layers. The minaret on the town's
mosque lay draped over the building like a limp
sock.
Many of those trapped under the rubble were taken
to Izmit state hospital, which presented a scene
reminiscent of the Inferno. A car park littered with
bandages and surgical gloves was converted into
an emergency ward with relatives holding up
pieces of cardboard to shade loved ones as their
wounds were being stitched. Inside, three of the
four operating theatres were in constant use, even
although there was no city water and the
emergency electrical generator was not working.
The corridors of the hospital were filled with the
injured, while those not in a critical condition were
taken to the park across the street.
"I don't know if I should be thinking of myself or my
family," said a dazed 20-year-old sitting outside, a
saline drip suspended from a railing and his face
still caked in blood. He was one of the lucky ones
who had been rescued within the first hour and
brought in to have his arm, broken in three places,
mended. He had no knowledge of the fate of his
parents or younger brother, still missing in the
rubble.
Turkey has in the past been unwilling to accept
international assistance after an earthquake, but
Mr Ecevit, who was manning a special crisis
centre, made clear that there would be no such
reluctance this time. He urged international
organisations to be patient as there might be
logistical problems in getting aid to where it was
needed most.
He also urged Turks to refrain from using
bulldozers to clear the wreckage, warning them
that such powerful intervention might kill those
trapped in air pockets. "Some of our citizens who
lost their loved ones under wreckage demand
heavy machinery to clear it and save their relatives.
But if we do this we can lose more people than we
save. So we have to be patient and wait," he said.
Britain sent a team of 42 experts including
firefighters and those trained in search-and-rescue
operations, and other countries - including some
that have been at odds with Turkey - promised
help. Greece offered crews experienced in
recovering survivors from ruined buildings.
Bill Richardson, the US Energy Secretary, who
was in Istanbul, consulted his Turkish counterpart
about American assistance, and President Clinton
said: "Turkey has been our friend and our ally for a
long time now. We must stand with them and do
whatever we can to help them get through this
terrible crisis."
Two Britons were among the wounded, neither of
them with life-threatening injuries. A schoolboy who
had been listed as missing was found safe.
Next page: Andrew Finkel reflects on the tremor
aftermath
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 46 of 637: Wolf (wolf) * Tue, Aug 17, 1999 (21:40) * 1 lines
i believe we're sending in search and rescue troops out of virginia. the best in the country (not military). i can only imagine what contracting must be like over there right now (i.e., the military bases etc.) and i have a friend who will be moving there with his family next week. :(
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 47 of 637: Marcia (MarciaH) * Tue, Aug 17, 1999 (21:44) * 1 lines
You don't want to know...Those search and rescue teams with the sniffer dogs are veterans of the Mexico City quake and numerous others. They are the best in the world at that unhappy task. We can all be grateful that they are willing to do it.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 48 of 637: Wolf (wolf) * Tue, Aug 17, 1999 (21:50) * 1 lines
indeed, so!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 49 of 637: Marcia (MarciaH) * Wed, Aug 18, 1999 (00:28) * 7 lines
My son reports that a rode out a 5.0 earthquake in central California
MAG DATE LOCAL-TIME LAT LON DEPTH LOCATION
y/m/d h:m:s deg deg km
5.0 99/08/17 18:06:18 37.91N 122.69W 6.9 0 mi SSW of BOLINAS
More information is available at this URL:
http://quake.wr.usgs.gov/recenteqs/Quakes/quakes.big.html
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 50 of 637: Wolf (wolf) * Wed, Aug 18, 1999 (10:31) * 1 lines
the numbers in turkey are over 3500 dead and still 10's of thousands missing. from what i understand, none of the us military bases were hit.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 51 of 637: Marcia (MarciaH) * Wed, Aug 18, 1999 (12:56) * 1 lines
That is my understanding at this hour. Two sniffer-dog rescue units are there from the US...one from Virginia and one from Florida - to be joined by units from Japan and other countries, including Greece, its arch-enemy. In times like this, national disputes seem very petty, indeed!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 52 of 637: Karen (KarenR) * Wed, Aug 18, 1999 (14:29) * 5 lines
eh, eh, eh. Last night on the news, they said the largest contingent to come over was from Israel.
Having been to Turkey fairly recently (less than 2 yrs ago) I think the US AF bases are northeast from this area, along the Black Sea--as close as they dared to the former Soviet Union.
Am amazed that those historic buildings in Istanbul are still standing. 7.4 on the scale, they say.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 53 of 637: Marcia (MarciaH) * Wed, Aug 18, 1999 (15:35) * 15 lines
http://wwwneic.cr.usgs.gov/neis/bulletin/990817000138.HTML
99/08/17 00:01:38 40.69N 29.82E 10.0 7.4Mw
TURKEY
The following is a release by the United States Geological Survey, National Earthquake Information Center: A major
earthquake occurred about 55 miles (90 km) east-southeast of Istanbul or about 165 miles (270 km) west-northwest of
Ankara at 6:02 PM MDT, Aug 16, 1999 (Aug 17 at 3:02 AM local time in Turkey). A PRELIMINARY MAGNITUDE OF
7.8 WAS COMPUTED FOR THIS EARTHQUAKE. The magnitude and location may change slightly as additional data
are received from other seismograph stations.
At least 2,000 people killed, 10,000 injured, many missing and extensive damage in the Istanbul-Adapazari area.
Much of the damage and casualties occured in the provinces of Kocaeli and Sakarya. Felt as far east as Ankara.
There is discussion that the California quake David felt was the compression wave travelling around the earth (see diagram in above url.) Turkey is on a plate boundary, and any movement on a plate boundary makes all of the other plates move. The San Andreas fault quake yesterday in California is the result.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 54 of 637: Wolf (wolf) * Wed, Aug 18, 1999 (18:00) * 1 lines
amazing when you look at the mileage! turkey being so far away from california.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 55 of 637: Marcia (MarciaH) * Wed, Aug 18, 1999 (18:41) * 1 lines
I guess this big blue marble is not all that big. I have heard Earthquakes described as striking a bell or a gong. It reverberates for a long while before all of the oscillations fade into the background.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 56 of 637: Wolf (wolf) * Wed, Aug 18, 1999 (20:51) * 1 lines
i'm sure it does, just like ripples in the water...
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 57 of 637: Marcia (MarciaH) * Fri, Aug 20, 1999 (20:48) * 1 lines
Exactly analagous...
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 58 of 637: Gi (patas) * Sun, Aug 22, 1999 (04:23) * 2 lines
Do you have anything on Lisbon's fault and seismic history, Marcia? Apart from the 1755 earthquake.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 59 of 637: Marcia (MarciaH) * Sun, Aug 22, 1999 (12:13) * 1 lines
I shall look it up - I am sure data is available, and with luck a plot of mapping of the faulting. Gives me something to do besides wring my hands over this hurricane about to assault Texas. Thank you for asking.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 60 of 637: Gi (patas) * Sun, Aug 22, 1999 (12:44) * 4 lines
You won't believe this but I give you my word it's true.
Earlier today there was a warning issued by the Maritime Authority that a giant ocean wave about 40 metres high was going to hit the Algarve (southern Portugal) coast. The beaches were evacuated, as were some restaurants and private homes. People gathered at high points to watch it appear.
I didn't hear of it until about an hour ago, found it peculiar (but exciting, I admit) and asked my DH to call the "Civilian Protection Service" to find out more.
Here's what we learned: the CPS had told the Maritime Authority to issue a warning that a heat wave of about 40ºcelsius would hit the Algarve this afternoon. Someone must have drunk a little to much at lunch and the warning came out as it did...
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 61 of 637: Marcia (MarciaH) * Sun, Aug 22, 1999 (12:48) * 1 lines
Too scary but funny! That is like the 40' lava wave that was going to sweep over Hilo as reported in mainland US newspapers. That is impossible. Lava moves pretty rapidly down slopes fresh from the vest, but not at 40' high and not sweeping...more like creeping. We did get a lot of phone calls, though. That is highly irresponsible reporting!!! Thanks for sharing, and stay cool!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 62 of 637: Marcia (MarciaH) * Tue, Sep 7, 1999 (13:15) * 3 lines
The current information on the Greek Earthquake has not hit The Times of London yet, and am waiting for more information from Geological sources. Updates as soon as I can find them.
99/09/07 11:56:50 38.13N 23.55E 10.0 5.8Mb A GREECE
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 63 of 637: Marcia (MarciaH) * Tue, Sep 7, 1999 (16:10) * 27 lines
From the BBC:
Tuesday, September 7, 1999 Published at 19:29 GMT 20:29 UK
Earthquake rocks Athens
An earthquake has shaken the Greek capital Athens, killing at least 20 people and leaving more than 100
trapped inside collapsed buildings. Three children are said to be among those who died in the tremor, which
struck around 1500 local time (1200 GMT) and was followed by a series of strong aftershocks.
Thousands of Athenians who were taking an afternoon siesta, fled into streets when the tremor occurred.
People were hit by falling glass, concrete and marble slabs. At least three were killed when a building
collapsed in the northern working-class surburb of Menidi.
Emergency services are trying to free 70 people trapped under a collapsed detergent factory in the northern
Tatoi suburb, one of the worst hit areas. A further 20 people were reported trapped in the ruins of a flattened
apartment building.
Reports say up to 100 buildings have been destroyed in the tremor. A government spokesman said many
people were trapped inside buildings and several dozen had been transported to hospital.
Cracks appeared in buildings in the historic Plaka district, but there was no apparent damage to ancient
sites, including the Acropolis and the Temple of Zeus.
The Athens Seismological Institute said the quake registered 5.9 on the Richter scale, and its epicentre was
20km (12.4 miles) north of the capital. Experts said the seismic shift occurred 5 to 10km below the ground.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 64 of 637: Gi (patas) * Thu, Sep 9, 1999 (07:31) * 1 lines
Is there a site where I can find a sort of map of the earth's seismic faults, Marcia?
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 65 of 637: Marcia (MarciaH) * Thu, Sep 9, 1999 (14:07) * 1 lines
Still looking for that map. There are several with local locations - like around San Francisco, or California in general. Will check for one for Lisbon for you (Portugal? Elsewhere?)
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 66 of 637: Gi (patas) * Thu, Sep 9, 1999 (14:20) * 1 lines
Thanks! What I really want to know is the relationship between Lisbon's fault and others. If there is such a thing.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 67 of 637: Marcia (MarciaH) * Fri, Sep 10, 1999 (22:17) * 1 lines
I will keep checking for the world-wide system, but All of the European coastline on the Atlantic is along the plate boundaries of the European Plate and the Atlantic Plate. By their very nature they grind and slide past one another as the earth fluctuates with celestial tugging by moon and sun. That is what caused the great quake in Turkey, recently.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 68 of 637: Gi (patas) * Sun, Sep 12, 1999 (03:59) * 2 lines
...And in Greece? And two years ago in Italy? why one place and not another? Shall we be next?
Stupid questions, I know, but we are worried. I guess only the events in East Timor have taken our collective mind away from that worry.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 69 of 637: Marcia (MarciaH) * Sun, Sep 12, 1999 (14:13) * 2 lines
I could answer your question better if I knew if they had strain meters along your part of the plate boundary, and whether or not there was evidence of strain building up in the rock beneath. I trust it is being monitored and you will hear far before it becomes life-or-death time. The problem with that is the panic factor. The powers that be in places like New York City, have said that fewer people would die from the earthquake they did not know was coming than from the panic ensuing trying to leave the
city if they did know one was imminent. Terrible though it might seem, that may be the only viable option with the populations centered as they are. Alas, anything bordering the Mediterranean is a natural for earth upheavals. Your only sure bet would be to move to the less populated outskirts of the city, and away from the coast.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 70 of 637: Marcia (MarciaH) * Sun, Sep 12, 1999 (14:23) * 2 lines
Ah, and your question, why in one place and not in another: Some places the rock is more fragile and fractures more easily...in others it is just a case of
when one large piece of something past another, each with great inertia. It hops rather than slides along, resulting in a big quake at the point of the hop. Sometimes this is entirely arbitrary where it occurs, but others have had the way paved by smaller ones which tend to lubricate the slide and make that area more prone to quakes. It is an imprecise science at best.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 71 of 637: Marcia (MarciaH) * Sun, Sep 12, 1999 (16:35) * 2 lines
There has been an EarthQuake swarm on Kilauea today so I am hoping to get up there to look around and see what is happening: From Quake Map:
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 72 of 637: Wolf (wolf) * Sun, Sep 12, 1999 (18:32) * 1 lines
that's a first for me, what's an earth quake swarm?
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 73 of 637: Marcia (MarciaH) * Sun, Sep 12, 1999 (20:03) * 2 lines
They occur when magma is moving down the rift zone (a network of cracks in the volcano's structure)under the surface. It usually precedes an eruption by a little while (hours to days), and the park service closes off access to the public for their protection. As soon as the eruption takes place and stabilizes itself in a specific area, they open it to the public for viewing. It is one of the most exciting things I can think of doing - anywhere, any time.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 74 of 637: Gi (patas) * Mon, Sep 13, 1999 (13:52) * 3 lines
Must be!
Thank you, Marcia, for looking for my "fault information".
There has been a new earthquake in Turkey this afternoon - have you heard?
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 75 of 637: Marcia (MarciaH) * Mon, Sep 13, 1999 (14:04) * 1 lines
I had not. Thanks for the update. I just posted information about the ongoing activity at Kilauea volcano on Geo 2. Will post updates on both sites as the day progresses.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 76 of 637: Marcia (MarciaH) * Mon, Sep 20, 1999 (15:20) * 1 lines
A 7.6 EarthQuake has been reported in Taiwan. A tusnami Alert has been issued. More news as it becomes available.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 77 of 637: Marcia (MarciaH) * Mon, Sep 20, 1999 (18:00) * 10 lines
From http://quake.wr.usgs.gov/cgi-bin/finger?quake@gldfs.cr.usgs.gov
99/09/20 17:47:19 23.78N 121.09E 33.0 7.6Ms A TAIWAN
99/09/20 17:57:16 23.80N 121.34E 33.0 6.0Mb B TAIWAN
99/09/20 18:03:44 23.65N 121.36E 33.0 5.9Mb B TAIWAN
99/09/20 18:11:53 23.75N 121.19E 33.0 6.1Mb B TAIWAN
99/09/20 18:16:18 23.69N 121.31E 33.0 6.1Mb B TAIWAN
99/09/20 20:40:08 24.09N 121.95E 33.0 5.1Mb C TAIWAN
99/09/20 21:46:44 23.56N 121.10E 33.0 5.8Mb B TAIWAN
Looks like they have had a bad couple of hours...all of the earthquakes have been over 5.0 which is pretty lively.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 78 of 637: Marcia (MarciaH) * Mon, Sep 20, 1999 (18:32) * 42 lines
From the BBC ONline news:
A powerful earthquake has hit Taiwan, killing at least 20 people and causing
the partial collapse of a 12-storey hotel in the capital, Taipei.
Most northern parts of the island felt the effects of the quake, which has
been estimated at 7.6 on the Richter Scale.
But it struck in the early hours of the morning, so the full
extent of the damage and casualties is still unknown.
An official from the Ministry of the Interior told the AFP
news agency: "I'm afraid [there will be] more casualties
as many people are trapped in collapsed buildings."
Taiwan's weather centre says it is the strongest earthquake ever to have hit
the island.
In Taipei, rescuers are working at the 78-room
Sungshan Hotel, trying to pull survivors from the rubble.
At least two other buildings in the capital are reported to
have collapsed.
The US Geological Survey gave the preliminary
magnitude of the quake as 7.6 on the Richter scale.
Its epicentre is believed to be Nantou, an active earthquake zone in central Taiwan.
The earthquake which devastated Turkey last month,
killing more than 15,000 people, was measured at 7.4.
Warnings of tsunamis - tidal waves which often follow
earthquakes - have gone out for Taiwan, Japan and other
islands in the region, the Geological Survey said.
The quake, which struck at 1.47am on Tuesday (1747 GMT on Monday) caused
severe damage to infrastructure and buildings in several cities.
Power has been lost in large parts of northern and central Taiwan.
But the extent of the damage, especially in remote and mountainous areas, is
not yet known. Witnesses in Taipei spoke of continuing aftershocks,
buildings collapsing, objects falling off apartment blocks and people fleeing their homes.
Radio reports said the central city of Taichung might be the worst hit.
The city's mayor said: "This is one of the strongest earthquakes I have felt
in my life. Many buildings collapsed and there is damage to roads and
other infrastructure". The authorities have warned that, because of the
magnitude of the earthquake, aftershocks and tremors may be felt for the next two weeks.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 79 of 637: MarkG (MarkG) * Tue, Sep 21, 1999 (04:36) * 3 lines
The picture from the air of the collapsed hotel on the news was terrifying. I am hoping this was the only multi-storey building that collapsed, because if the hotel was just symptomatic, the Taiwan situation would look worse than Turkey. Amazingly, only 100 people were apparently in a 12-storey hotel overnight - seems strange?
In terms of comparisons with Turkey, if the numbers given so far as dead and injured are correct, I guess the buildings are constructed with quakes in mind.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 80 of 637: Marcia (MarciaH) * Tue, Sep 21, 1999 (15:30) * 2 lines
Mark, thanks for posting! Those who know about these thing - structural engineers - say the difference between Turkey and Taiwan damage is due almost entirely to buildings on Taiwan being built to stricter codes. That hotel bent and torqued as seen from the air is an amazing and terrifying sight. I can imagine how terrible, having ridden a 7.2 quake here which lasted more than 30 seconds. It was like walking on the heaving deck of a ship as the ground undulated beneath my feet. It is an incredible f
eling, and one I do not need to have repeated in my lifetime, thank you!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 81 of 637: Marcia (MarciaH) * Tue, Sep 21, 1999 (15:35) * 1 lines
According to the news, teams from Fairfax, Virginia complete with sniffer dogs and fiber-optics cameras are on their way to help search for victims. Teams are also in Taiwan from Japan and mainland China and other parts of the US. Karen, has Israel sent their top-notch team there, too? Have not heard as yet. Again, what a terrible job, and I am very thankful such competent people are willing to go and do it.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 82 of 637: Marcia (MarciaH) * Tue, Sep 21, 1999 (21:05) * 10 lines
Earthquakes and aftershocks continue for Taiwan, and another for Turkey plus one in Portugal just after Gi has gone on holiday, and one for my son in Calidfornia
99/09/20 21:46:43 23.49N 120.93E 33.0 6.5Ms B TAIWAN
99/09/20 21:54:32 38.61N 9.34W 10.0 3.7Lg A PORTUGAL
99/09/20 21:54:49 23.64N 120.94E 33.0 5.4Mb C TAIWAN
99/09/21 07:06:06 23.85N 121.63E 33.0 4.8Mb C TAIWAN
99/09/21 11:49:46 44.84N 149.74E 33.0 5.6Mb A KURIL ISLANDS
99/09/21 14:11:36 13.80N 90.68W 33.0 4.5Mb A NEAR COAST OF GUATEMALA
99/09/21 14:21:03 33.16N 141.42E 33.0 4.6Mb B OFF E COAST OF HONSHU, JAPAN
99/09/21 15:42:48 35.80N 121.26W 5.6 3.6Ml CENTRAL CALIFORNIA
99/09/21 17:38:39 23.90N 121.29E 33.0 5.1Mb A TAIWAN
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 83 of 637: Marcia (MarciaH) * Tue, Sep 21, 1999 (22:21) * 0 lines
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 84 of 637: Marcia (MarciaH) * Tue, Sep 21, 1999 (22:24) * 0 lines
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 85 of 637: MarkG (MarkG) * Wed, Sep 22, 1999 (02:55) * 4 lines
Wonderful plate boundaries map, Marcia!
Does your previous list of today's shocks show Richter measures (Ms, Mb, Lg) or are the A, B or C for seriousness)?
How come Hawaii gets shocks - is it not safe in the middle of the Pacific plate?
What happens to the faultline in the Mediterranean, and the one that heads into Northern Siberia and stops there, do you think?
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 86 of 637: Marcia (MarciaH) * Wed, Sep 22, 1999 (12:04) * 12 lines
The right-hand column is magnitude of the earthquakes on the Richter Scale.
According to the source page of those statistics:
DEPDepth in kilometers
MAG Magnitude, with method used to calculate it:
Ml local, the original Richter magnitude
Lg mblg or Mn, local or regional magnitude for the area east of the Rocky Mountains
Md duration
Mb body wave
Ms surface wave
Mwmoment
Q Earthquake Location Quality: A is good, B is fair, C is poor, D is bad
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 87 of 637: Marcia (MarciaH) * Wed, Sep 22, 1999 (12:23) * 7 lines
Since they remove the plate boundary EQ map when they update it, I am posting another one which is static, but still shows all of the boundaries:
As to why Hawaii has Earthquakes in the middle of a plate...we are unique in the world for that fact and that we have volcanoes. It seems to be a "hot spot" (as the technicians call it) and as the plate moves across it to the northwest, new islands are formed. Another is forming off of our southeastern flank, but don't contact your real estate agents just yet. It will be several thousand years before it shows above the suface of the sea. The earthquakes we feel are just from the settling of the rock m
sses after magma has left a void, or new magma is forcing its way to the surface. Having said that, the strongest EQ that I have been through - 7.2 mag - was from the plate movement across the hot spot.
I truly think a lot of the dynamics of the Hawaiian situation is not yet known and GPS, laser measured inflation rates (the mountains actually swell when fresh magma enters the upper levels), and other new techinques may shed new light on the causes. We KNOW all about the effects!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 88 of 637: Marcia (MarciaH) * Wed, Sep 22, 1999 (12:24) * 0 lines
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 89 of 637: Marcia (MarciaH) * Wed, Sep 22, 1999 (12:31) * 1 lines
Checking other sources about what happens to the Mediterranean plate boundary, it is there, but dives under other strata which have been forced onto it. I think it is the same for the Siberian boundary, as well. Close inspection of the map reveals the continuation of the boundary a few miles in front of the obstruction. (...at least, so it appears!)
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 90 of 637: Marcia (MarciaH) * Wed, Sep 29, 1999 (13:20) * 1 lines
For a comparison of plate boundaries map above and global vulcanism, please check http://www.spring.net/yapp-bin/restricted/read/Geo/2.58
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 91 of 637: Gi (patas) * Thu, Sep 30, 1999 (04:53) * 1 lines
Marcia, wonderful maps. I'm saving this one as well as the vulcanism one.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 92 of 637: Marcia (MarciaH) * Thu, Sep 30, 1999 (12:36) * 1 lines
I think they compliment each other...It would be great to have a wall-sized on for reference, I think...
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 93 of 637: Marcia (MarciaH) * Thu, Sep 30, 1999 (16:58) * 48 lines
TSUNAMI BULLETIN NUMBER 001
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED 30 SEP, 1659 UTC
THIS BULLETIN IS FOR ALL AREAS OF THE PACIFIC BASIN EXCEPT
CALIFORNIA, OREGON, WASHINGTON, BRITISH COLUMBIA, AND ALASKA.
. . . A TSUNAMI WARNING AND WATCH ARE IN EFFECT . . .
A TSUNAMI WARNING IS IN EFFECT FOR:
MEXICO, EL SALVADOR, ECUADOR
A TSUNAMI WATCH IS IN EFFECT FOR:
PANAMA, PERU
FOR OTHER AREAS IN THE PACIFIC, THIS MESSAGE IS FOR INFORMATION ONLY.
AN EARTHQUAKE, PRELIMINARY MAGNITUDE 7.6, OCCURRED 30 SEP, 1631 UTC.
COORDINATES: LATITUDE 16.0 NORTH, LONGITUDE 96.8 WEST
VICINITY: OAXACA, MEXICO.
EVALUATION: IT IS NOT KNOWN THAT A TSUNAMI WAS GENERATED.
THIS WARNING AND WATCH ARE BASED ONLY ON EARTHQUAKE
EVALUATION.
ESTIMATED TIMES OF INITIAL WAVE ARRIVAL AT LOCATIONS WITHIN THE
WARNING AND WATCH AREAS ARE:
ACAPULCO,MEXICO 1703Z 30 SEP
MANZANILLO,MEXICO 1801Z 30 SEP
ACAJUTLA,EL SALVADOR 1828Z 30 SEP
SOCORRO,MEXICO 1849Z 30 SEP
BALTRA IS,ECUADOR 1949Z 30 SEP
BALBOA HTS,PANAMA 2150Z 30 SEP
LA PUNTA,PERU 2233Z 30 SEP
BULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT.
THE TSUNAMI WARNING WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.
RECIPIENTS OF THIS MESSAGE LOCATED IN CALIFORNIA, OREGON,
WASHINGTON, BRITISH COLUMBIA, AND ALASKA SHOULD REFER ONLY
TO ALASKA TSUNAMI WARNING CENTER MESSAGES FOR INFORMATION
ABOUT ANY TSUNAMI THREAT IN THOSE AREAS.
David N. Little
Geologist
IT Corporation
Martinez, California
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 94 of 637: Marcia (MarciaH) * Thu, Sep 30, 1999 (17:23) * 33 lines
TSUNAMI BULLETIN NUMBER 3
WEST COAST AND ALASKA TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED SEP 30 AT 1836 UTC
...THIS IS THE FINAL TSUNAMI ADVISORY BULLETIN FOR ALASKA,
BRITISH COLUMBIA, WASHINGTON, OREGON, AND CALIFORNIA ONLY...
NO, REPEAT NO, WATCH OR WARNING IS IN EFFECT.
AN EARTHQUAKE, PRELIMINARY MAGNITUDE 7.6, OCCURRED AT
0831 ADT ON SEP 30, OR 0931 PDT ON SEP 30, OR 1631 UTC ON SEP 30.
THE EARTHQUAKE WAS LOCATED IN THE GENERAL AREA OF:
SOUTHERN MEXICO NEAR 16.1N, 96.8W.
EVALUATION: NO DESTRUCTIVE TSUNAMI HAS OCCURRED.
NO TSUNAMI WAS RECORDED AT MANZANILLO, MEXICO.
NO TSUNAMI DANGER EXISTS FOR ALASKA, BRITISH COLUMBIA,
WASHINGTON, OREGON, OR CALIFORNIA. HOWEVER, SOME AREAS MAY
EXPERIENCE SMALL SEA LEVEL FLUCTUATIONS.
THE PACIFIC TSUNAMI WARNING CENTER IS CLOSING ITS INVESTIGATION
AND WILL ISSUE A FINAL BULLETIN.
THIS WILL BE THE LAST WEST COAST AND ALASKA TSUNAMI WARNING
CENTER ADVISORY BULLETIN ISSUED FOR THIS EVENT.
THIS INFORMATION IS ALSO POSTED AT HTTP://WWW.WCATWC.GOV.
David N. Little
Geologist
IT Corporation
Martinez, California
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 95 of 637: Marcia (MarciaH) * Thu, Sep 30, 1999 (18:39) * 3 lines
In Hilo, we do not take Tsunami warnings lightly. This is what Hilo looked like the day after the 1960 Tsunami. Information and more pictures from Hilo's very own Tsunami Museum: http://planet-hawaii.com/tsunami/
Suddenly I heard a shout, ‘Big wave!’ The streetlights around us exploded almost in the same instant. I looked up and saw a locally well known fishing boat coming up over the Wailoa Bridge" -- Susan Maeda Veriato on the 1960 tsunami in Hilo, as told to her son Travis [PTM Photo: Polhemus collection]
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 96 of 637: Gi (patas) * Fri, Oct 1, 1999 (03:09) * 1 lines
Wow! So this is what we would have had if our Giant Wave had been real... As it was, it didn't even fill the pool ;-)
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 97 of 637: Marcia (MarciaH) * Fri, Oct 1, 1999 (12:55) * 2 lines
Indeed! What you cannot see is the human toll. People were washed out to sea, rescued and told terrifying stories to me. Others lost realtives. Our roofs were mostly sheet iron in those days, and the sheets slashed through the water slicing up houses, animals and people. Parking meters on sturdy metal posts were laid flat against the concrete in which they were set. That whole area in the picture has been made into parkland and soccer fields along the bay front and looks lovely. There is a memorial
set in the middle background to those whose lives were lost that April 1, 1960. Many more could have been saved had they not thought the warning sirens were an April Fool's Day joke!!!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 98 of 637: Marcia (MarciaH) * Fri, Oct 1, 1999 (13:01) * 1 lines
It is never just one huge wave. Like the pebble dropped into a pond creates a series of wavelets around its impact zone, so does an Earthquake. It was the third or fourth wave that did the most damage in Hilo. The surging water does more damage as it moves inland, only to suck back out to sea whatever is loose and movable. The next wave deposits it far inland from whence it came. They are terrible waves, indeed!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 99 of 637: Gi (patas) * Sat, Oct 2, 1999 (12:56) * 3 lines
Indeed they must be. It is like those aftershocks in Taiwan, almost as ugly as the first quake.
I had no idea there had been a quake in Portugal just after I left for Tunisia... Read it here and then had it confirmed...
After so much earth motion this year I admit I am a bit worried.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 100 of 637: Marcia (MarciaH) * Sat, Oct 2, 1999 (13:12) * 1 lines
It is difficult to live in a place with a history of Earthquakes and NOT be concerned... That one in Portugal was minor and north of Lisbon, if I recall correctly...Was there much damage reported? I have seen no follow-up information.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 101 of 637: Gi (patas) * Sun, Oct 3, 1999 (02:28) * 1 lines
I think not much. It was felt in Sintra and thereabouts. Since I am now in the south I don't really have access to people from that area, but will check when I go back to Lisbon.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 102 of 637: Marcia (MarciaH) * Sun, Oct 3, 1999 (18:56) * 1 lines
Thanks - it would be interesting to know what the cause might have been, or was it just settling and creaking of the mantle or crust...?!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 103 of 637: Marcia (MarciaH) * Sat, Oct 16, 1999 (12:40) * 27 lines
***** UPDATE OF PREVIOUSLY REPORTED EVENT *****
== PRELIMINARY EVENT REPORT ==
Southern California Seismic Network operated by USGS and Caltech
Version 8: This report supersedes any earlier reports about this event.
This solution has been reviewed by KNK
Magnitude : 7.0 ME
Time : 16 Oct 1999 02:46:44 AM PDT
: 16 Oct 1999 09:46:44 UTC
Location : 32 mi. N of Joshua Tree, CA
: 47 mi. ESE of Barstow, CA
: 14 mi. SE of HECTOR (quarry)
: 4 mi. NE of the Pisgah Fault
Coordinates : 34 deg. 35.73 min. N, 116 deg. 16.09 min. W
Depth : 3.7 miles ( 6.0 km)
Quality : Fair
Event ID : 9108645
More information is available on the Worldwide Web at:
http://www.trinet.org/scsn/scsn.html
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 104 of 637: Marcia (MarciaH) * Sat, Oct 16, 1999 (19:33) * 110 lines
Recommended reading this site has three maps and a brief description of the earthquake early this morning in Southern CAlifornia: http://wwwneic.cr.usgs.gov/neis/bulletin/991016094644.HTML
*************************
From http://quake.wr.usgs.gov/recenteqs/Quakes/quakes.big.html
Below is a list of earthquakes recorded by the California and Nevada
Seismic Networks during the last week. Times are local (PST or PDT).
Most recent earthquakes are at the top of the list...
Click on the word "map" or "MAP" to see a map view.
Click on a "DATE" to get additional text information.
Magnitude 3 and greater earthquakes are printed in bold type.
The top three magnitudes greater than or equal to 3 are in red.
MAG DATE LOCAL-TIME LAT LON DEPTH LOCATION
y/m/d h:m:s deg deg km
---------------------------------------------------------------------------------------
MAP 3.1 99/10/16 16:52:10 34.67N 116.34W 5.9 37 mi N of JOSHUA TREE
MAP 3.0 99/10/16 16:51:40 34.81N 116.33W 6.0 35 mi SSW of BAKER
MAP 3.0 99/10/16 15:55:38 34.67N 116.33W 0.0 37 mi N of JOSHUA TREE
MAP 4.6 99/10/16 15:53:41 34.71N 116.36W 6.0 39 mi N of JOSHUA TREE
MAP 3.1 99/10/16 15:25:28 34.44N 116.26W 2.0 21 mi N of JOSHUA TREE
MAP 3.5 99/10/16 14:55:44 34.70N 116.29W 5.8 39 mi N of JOSHUA TREE
MAP 3.1 99/10/16 14:53:57 34.41N 116.20W 2.7 20 mi NNE of JOSHUA TREE
MAP 3.0 99/10/16 14:46:15 34.85N 116.36W 2.7 34 mi SSW of BAKER
MAP 4.1 99/10/16 14:10:50 34.67N 116.34W 6.0 37 mi N of JOSHUA TREE
MAP 3.3 99/10/16 13:22:30 34.60N 116.32W 6.0 32 mi N of JOSHUA TREE
MAP 4.7 99/10/16 13:13:37 34.69N 116.28W 6.0 38 mi N of JOSHUA TREE
MAP 3.0 99/10/16 13:08:07 34.48N 116.27W 6.3 24 mi N of JOSHUA TREE
MAP 3.6 99/10/16 12:39:55 34.68N 116.31W 2.3 37 mi N of JOSHUA TREE
MAP 3.5 99/10/16 11:13:09 34.54N 116.28W 6.0 28 mi N of JOSHUA TREE
MAP 3.6 99/10/16 11:10:20 34.79N 116.34W 0.0 37 mi SSW of BAKER
MAP 3.8 99/10/16 11:05:22 34.57N 116.26W 0.0 30 mi N of JOSHUA TREE
MAP 4.3 99/10/16 11:01:52 34.65N 116.41W 9.2 36 mi N of JOSHUA TREE
MAP 3.1 99/10/16 10:55:16 34.53N 116.25W 0.9 28 mi N of JOSHUA TREE
MAP 3.5 99/10/16 10:48:31 33.27N 115.72W 0.7 6 mi S of BOMBAY BEACH
MAP 5.0 99/10/16 10:38:48 34.44N 116.24W 0.1 21 mi N of JOSHUA TREE
MAP 3.1 99/10/16 10:37:04 33.21N 115.65W 1.7 3 mi NNW of OBSIDIAN BUTTE
MAP 3.0 99/10/16 10:21:56 34.55N 116.27W 0.0 29 mi N of JOSHUA TREE
MAP 3.5 99/10/16 10:02:46 34.64N 116.37W 6.0 35 mi N of JOSHUA TREE
MAP 3.1 99/10/16 09:57:29 34.59N 116.26W 5.9 32 mi N of JOSHUA TREE
MAP 3.7 99/10/16 09:55:58 33.79N 116.11W 13.5 8 mi NE of INDIO
MAP 3.6 99/10/16 09:55:21 34.40N 116.29W 0.0 18 mi N of JOSHUA TREE
MAP 3.6 99/10/16 09:54:27 34.50N 116.36W 5.8 26 mi N of JOSHUA TREE
MAP 3.2 99/10/16 09:48:39 34.70N 116.30W 6.0 39 mi N of JOSHUA TREE
MAP 3.1 99/10/16 09:38:59 34.57N 116.26W 0.0 30 mi N of JOSHUA TREE
MAP 3.6 99/10/16 09:22:58 34.68N 116.30W 0.0 37 mi N of JOSHUA TREE
MAP 3.8 99/10/16 09:12:09 34.52N 116.27W 5.8 26 mi N of JOSHUA TREE
MAP 3.4 99/10/16 09:12:09 34.52N 116.26W 6.0 27 mi N of JOSHUA TREE
MAP 3.0 99/10/16 09:05:02 34.35N 116.24W 0.2 15 mi NNE of JOSHUA TREE
MAP 3.0 99/10/16 08:54:20 34.60N 116.31W 6.0 32 mi N of JOSHUA TREE
MAP 3.1 99/10/16 08:42:29 34.48N 116.27W 2.3 23 mi N of JOSHUA TREE
MAP 3.2 99/10/16 08:41:41 34.59N 116.28W 6.0 31 mi N of JOSHUA TREE
MAP 3.8 99/10/16 08:38:33 34.38N 116.14W 0.5 17 mi NNW of TWENTYNINE PALMS
MAP 3.6 99/10/16 08:31:47 34.55N 116.34W 6.0 29 mi N of JOSHUA TREE
MAP 3.0 99/10/16 08:18:55 34.40N 116.27W 0.4 18 mi N of JOSHUA TREE
MAP 3.8 99/10/16 07:52:35 34.45N 116.27W 0.6 22 mi N of JOSHUA TREE
MAP 3.0 99/10/16 07:48:45 34.47N 116.28W 2.5 23 mi N of JOSHUA TREE
MAP 3.7 99/10/16 07:44:25 34.56N 116.36W 6.0 29 mi N of JOSHUA TREE
MAP 3.8 99/10/16 07:43:44 34.45N 116.24W 0.0 22 mi N of JOSHUA TREE
MAP 3.8 99/10/16 07:43:11 34.44N 116.24W 5.8 21 mi N of JOSHUA TREE
MAP 3.5 99/10/16 07:20:45 34.70N 116.32W 6.0 39 mi N of JOSHUA TREE
MAP 3.7 99/10/16 07:07:05 34.37N 116.14W 0.0 17 mi NNW of TWENTYNINE PALMS
MAP 4.2 99/10/16 06:59:16 34.84N 116.34W 0.1 33 mi SSW of BAKER
MAP 3.6 99/10/16 06:56:43 34.68N 116.35W 6.1 38 mi N of JOSHUA TREE
MAP 3.5 99/10/16 06:55:23 33.23N 115.69W 0.2 6 mi NW of OBSIDIAN BUTTE
MAP 4.2 99/10/16 06:51:17 34.45N 116.23W 1.5 22 mi N of JOSHUA TREE
MAP 3.6 99/10/16 06:42:49 33.79N 116.12W 10.8 7 mi NE of INDIO
MAP 3.2 99/10/16 06:37:02 33.79N 116.12W 6.0 8 mi NE of INDIO
MAP 3.7 99/10/16 06:34:57 34.54N 116.31W 6.0 28 mi N of JOSHUA TREE
MAP 3.7 99/10/16 06:32:22 34.35N 116.22W 0.0 15 mi NNE of JOSHUA TREE
MAP 3.6 99/10/16 06:23:55 34.59N 116.30W 6.0 31 mi N of JOSHUA TREE
MAP 3.0 99/10/16 06:23:09 34.36N 116.14W 0.0 16 mi NNW of TWENTYNINE PALMS
MAP 4.0 99/10/16 06:22:10 34.55N 116.28W 0.0 29 mi N of JOSHUA TREE
MAP 3.0 99/10/16 06:14:56 34.45N 116.23W 0.6 22 mi N of JOSHUA TREE
MAP 3.1 99/10/16 06:09:09 34.42N 116.26W 4.0 20 mi N of JOSHUA TREE
MAP 3.9 99/10/16 06:05:20 34.69N 116.31W 6.0 38 mi N of JOSHUA TREE
MAP 3.9 99/10/16 06:01:08 34.77N 116.33W 6.0 37 mi SSW of BAKER
MAP 5.8 99/10/16 05:57:21 34.44N 116.25W 1.0 21 mi N of JOSHUA TREE
MAP 4.5 99/10/16 05:55:09 34.49N 116.26W 2.4 24 mi N of JOSHUA TREE
MAP 3.8 99/10/16 05:51:50 34.37N 116.13W 0.3 17 mi NNW of TWENTYNINE PALMS
MAP 3.9 99/10/16 05:37:22 34.43N 116.35W 6.0 21 mi N of JOSHUA TREE
MAP 3.8 99/10/16 05:15:09 34.61N 116.33W 6.0 33 mi N of JOSHUA TREE
MAP 4.4 99/10/16 05:03:19 34.72N 116.32W 6.0 40 mi N of JOSHUA TREE
MAP 3.6 99/10/16 04:52:24 34.68N 116.39W 16.0 38 mi N of JOSHUA TREE
MAP 4.1 99/10/16 04:49:59 34.72N 116.35W 6.0 40 mi N of JOSHUA TREE
MAP 4.0 99/10/16 04:47:44 34.69N 116.35W 6.0 38 mi N of JOSHUA TREE
MAP 3.8 99/10/16 04:38:49 34.53N 116.30W 6.0 27 mi N of JOSHUA TREE
MAP 4.4 99/10/16 04:27:39 34.68N 116.22W 12.0 38 mi N of JOSHUA TREE
MAP 3.9 99/10/16 04:21:40 34.40N 116.29W 6.1 18 mi N of JOSHUA TREE
MAP 4.0 99/10/16 04:04:33 34.37N 116.21W 6.0 17 mi NNE of JOSHUA TREE
MAP 4.0 99/10/16 03:49:50 33.23N 115.67W 0.1 5 mi NNW of OBSIDIAN BUTTE
MAP 4.6 99/10/16 03:20:52 34.38N 116.13W 6.0 17 mi NNW of TWENTYNINE PALMS
MAP 4.5 99/10/16 03:09:54 34.65N 116.29W 0.2 35 mi N of JOSHUA TREE
MAP 4.3 99/10/16 03:04:52 34.58N 116.18W 3.9 31 mi NNE of JOSHUA TREE
MAP 4.7 99/10/16 03:02:41 34.58N 116.37W 6.0 31 mi N of JOSHUA TREE
MAP 3.7 99/10/16 02:59:51 34.19N 117.26W 8.1 6 mi NNE of SAN BERNARDINO
MAP 5.3 99/10/16 02:51:52 34.41N 116.56W 6.2 22 mi NNW of YUCCA VALLEY
MAP 7.0 99/10/16 02:46:44 34.60N 116.27W 6.0 32 mi N of JOSHUA TREE
MAP 3.8 99/10/15 19:41:04 34.59N 116.27W 0.0 32 mi N of JOSHUA TREE
MAP 3.4 99/10/15 17:17:38 39.02N 123.07W 1.8 8 mi W of LAKEPORT
MAP 3.0 99/10/15 08:00:56 36.63N 121.23W 1.7 8 mi NW of PINNACLES
MAP 3.1 99/10/15 08:00:16 36.62N 121.23W 6.2 8 mi NW of PINNACLES
MAP 3.0 99/10/15 07:22:43 34.59N 116.27W 0.0 31 mi N of JOSHUA TREE
MAP 3.3 99/10/13 12:35:56 36.00N 120.56W 4.3 10 mi NW of PARKFIELD
MAP 3.0 99/10/12 21:56:10 33.21N 115.98W 9.1 5 mi SSW of SALTON CITY
MAP 3.0 99/10/10 09:44:04 38.53N 122.29W 5.3 9 mi ESE of ANGWIN
MAP 3.3 99/10/10 08:46:14 37.40N 117.08W 6.0 55 mi N of STOVEPIPE WELLS
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 105 of 637: Marcia (MarciaH) * Sat, Oct 16, 1999 (19:37) * 4 lines
The above statistics are easier to read on the web page...and the maps are hot linked for those who are really interested in it. They have had a bumpy ride today! Some of the aftershocks have been pretty strong, as well.
http://wwwneic.cr.usgs.gov/neis/bulletin/bulletin.html
Gives the statistics of earthquakes world wide for this date.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 106 of 637: Marcia (MarciaH) * Sun, Oct 24, 1999 (01:54) * 24 lines
The continuing strong earthquakes beneath Taiwan has spawned a group of interesting theories recently published in the journals of record for the science. Here is one such which explains the quakes as being the result of the zone of subduction (where the Pacific Plate it being dragged beneath the Asian Plate) activity.
AUTHOR: Lin, C. H.; Roecker, S. W.
TITLE: Deep earthquakes beneath central Taiwan; mantle shearing in an
arc-continent collision
AUTH AFFIL: Rensselaer Polytechnic Institute, Department of Earth and
Environmental Sciences; Troy, NY; United States
PUBLISHER: American Geophysical Union, Washington, DC, United States
SOURCE: Tectonics, v.12, n.3, p.745-755
REFERENCES: 10
YEAR: 1993
LANGUAGE: English
PUB TYPE: Serial, Analytic
FORMAT: illus., 2 tables, sketch maps
ISSN: 0278-7407
CODEN: TCTNDM
DESCRIPTOR: arrival time; Asia; body waves; central Taiwan; compression
tectonics; deep-focus earthquakes; displacements; earthquakes;
elastic waves; Eurasian Plate; Far East; faults; focal
mechanism; focus; island arcs; mantle; models; P-waves;
Philippine Sea Plate; S-waves; seismicity; seismology; shear;
Taiwan; tectonics; tomography
LATITUDES: N220000; N251000
LONGITUDES: E0122000; E0120000
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 107 of 637: JanaJH (Jana2) * Wed, Oct 27, 1999 (22:02) * 1 lines
Marcia, I finally had time to stop by and visit. Wow! Fascinating stuff, particularly for a California native like myself. I was sitting here writing up some of my earthquake experiences for you, and after a few loooong paragraphs my finger accidentally brushed the Escape key. Poof! It all disappeared. I took that as an omen that I was being long winded and boring and gave up :-). But I did want you to know that I enjoyed your site!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 108 of 637: Marcia (MarciaH) * Thu, Oct 28, 1999 (01:22) * 1 lines
Pleeeeeeeease try again on a page like wordPad and paste it here. I am delighted to see you *big smile* Check our updating weather maps in Geo 14.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 109 of 637: Marcia (MarciaH) * Thu, Oct 28, 1999 (22:15) * 1 lines
It was reported to me that Wales had a 3.5 earthquake...would the person who sent me the information please email me again...I cannot find your original letter. Thanks! Wales has a base of very old rock - Precambrian, which is odd for Cambria to have since it implied the rocks were there before the country was there - and that is probably correct.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 110 of 637: Maggie (sociolingo) * Fri, Oct 29, 1999 (12:33) * 1 lines
Hi Marcia, I sent in the Wales report, it was on the BBC news, I think that's the second or third this year.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 111 of 637: Marcia (MarciaH) * Fri, Oct 29, 1999 (12:54) * 1 lines
I thought you had, but going through your emails yeaterday I could not find it. And, I am most happy to credit my reporters. Thank you Maggie! I will check with the Beeb today since the Cal Tech equipment is not reporting it and none of the other world-wide reporting is, either. I shall go directly to BBC for Wales and get the scoop! Thanks, again!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 112 of 637: JanaJH (Jana2) * Sat, Nov 6, 1999 (02:56) * 2 lines
Hi Marcia,
I have to head over to Taipei for business next week. Do you know if they're still having lots of aftershocks there? Ever since the fright of 1994 I'm a nervous nellie about earthquakes so am not looking forward to it!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 113 of 637: Gi (patas) * Sat, Nov 6, 1999 (02:59) * 18 lines
I got this one from an online newssheet:
"At Police Headquarters of a developing country a telegramm arrives
from the Geophysics and Meteorology National Institute. It says:
URGENT STOP
Possible seismic activity in the capital in the next two days STOP
Very dangerous Richter 7 STOP
Epicenter 3 km from town center STOP
Take precautionary measures STOP
Urgently report back STOP
Three months later the Institute receives the following telegramm:
This is Police Headquarters STOP
Seismic activity completely under control STOP
Richter 7 tried to escape was shot dead STOP
Epicenter and three gang members arrested STOP
Could not answer earlier because an earthquake destroyed everything here STOP"
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 114 of 637: Marcia (MarciaH) * Sat, Nov 6, 1999 (15:29) * 3 lines
Jana, They have been having incredibly strong and frequent aftershocks on Taiwan. The most recent stron one was 6.1 a few days ago. Check this URL frequently and scroll to the bottom for previous quakes. Good Luck!!!
http://wwwneic.cr.usgs.gov/neis/bulletin/bulletin.html
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 115 of 637: Marcia (MarciaH) * Sat, Nov 6, 1999 (15:31) * 1 lines
Gi, *LOL* Thanks for the "update"...
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 116 of 637: JanaJH (Jana2) * Mon, Nov 8, 1999 (02:13) * 1 lines
Thanks for the website, Marcia!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 117 of 637: Marcia (MarciaH) * Mon, Nov 8, 1999 (14:04) * 2 lines
You are most welcome. This is my "thing" and digging up information and sharing it is most interesting and rewarding to me. Thanks for your interest. Take notes and report back when you return from your Taiwan trip...and, Good Luck!
(Most EQ's happen in the dark of the moon or at full moon...!)
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 118 of 637: Gi (patas) * Tue, Nov 9, 1999 (10:27) * 1 lines
Do they now? A tidal thing?
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 119 of 637: Marcia (MarciaH) * Tue, Nov 9, 1999 (11:40) * 1 lines
David came up with a theory (about the same time others did) that having both the sun AND the moon on the same side of Earth caused abnormal gravitational tugging on the crust, thereby causing more frequent volcanic eruptions. It sure seems to work that way It turns out that Earthquakes happen at that same time more frequently. The thing which confounds me is that it also happens at full moon when those forces should cancel out each other. I think we do not know all there is to this...
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 120 of 637: Marcia (MarciaH) * Tue, Nov 9, 1999 (15:11) * 12 lines
This news from Maggie:
A strong earthquake shook Northern Pakistan,
including the capital islamabad, last night. the
quake measured about 6 on the Richter sclae and was
centred aboout 220 miles north of the northwestern
city of Peshawar in the Hindu Kush mountains on the
Afghan border. There were no immediate reports of
casualties. (Reuters, Islamabad, in The Guardian
9.11.99)
I checked the near-real-time recorders at USGS and they reported it as 6.5. It is in a very remote ares (caused by the Himalayas being shoved up even higher) and any resulting damage or loss of life will be a long time filtering out. Many aftershocks noted, as well.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 121 of 637: Marcia (MarciaH) * Thu, Nov 11, 1999 (15:08) * 4 lines
There are still strong aftershocks from the EQ on the Afghan border
This just happened in Turkey...
99/11/11 14:41:24 40.80N 30.26E 10.0 5.6Ms A TURKEY
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 122 of 637: Marcia (MarciaH) * Thu, Nov 11, 1999 (15:10) * 1 lines
88 people reposted injured from the Western Turkey Earthquake
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 123 of 637: Marcia (MarciaH) * Fri, Nov 12, 1999 (23:06) * 101 lines
Turks rush to help quake survivors
By Amberin Zaman in Ankara
RESCUE workers were last night struggling to help survivors of an
earthquake measuring 7.2 on the Richter scale that shook western
Turkey yesterday, three months after the devastating tremor that left
17,000 people dead.
The quake centered on the town of Duzce, in a hilly
region of Bolu province, 115 miles east of Istanbul.
Main communication lines with Duzce were cut,
including the main highway linking Istanbul and
Ankara. Yahya Gur, the Governor of Ankara, said:
"A great number of buildings have collapsed in the
town. There are dead, and people are asking for help."
Bolu province was also hit by the quake in August, which measured
7.4 on the Richter scale, but suffered relatively little damage.
President Suleyman Demirel said: "We are face to face with a new
disaster." Turkey's Prime Minister, Bulent Ecevit, said: "The
aftershocks are still continuing. God protect us."
Hundreds of terrified residents poured into the streets as fires
erupted across the town. The local hospital was reported to be
overflowing with injured. They were being treated in the hospital
garden after the hospital was evacuated. Sadettin Cakmakoglu, a
doctor, said the hospital was in urgent need of pain killers and
medicine. He said: "I am calling out an SOS for Duzce."
Television pictures showed men and women weeping and crying out
the names of loved ones trapped under the rubble of collapsed
homes. People were shown tearing away at mounds of rubble as
they frantically tried to uncover buried relatives. One man kept
shouting "Allah, Allah, why, why?" as he pounded his chest in anger.
A television reporter in Duzce said: "There is utter helplessness
here at the moment. Hundreds of buildings have collapsed but there
is no one who can help." The pictures showed shocked residents,
wrapped in blankets, huddling together on the streets. Doctors were
quoted as saying that at least 1,000 people were injured in the
quake.
In the town of Bolu, women stood at the foot of a pile of rubble
weeping. A young man in tears was shown walking around his
collapsed home, shouting for his sister trapped in the rubble to talk
to him, while a woman was shown desperately pouring water on
flames around the rubble of her home.
Bolu province's police chief, Ugur Gur, appealed for help, saying
that Duzce was in desperate need of ambulances and doctors. He
said: "We can hear the moans of people trapped under the rubble,"
he said. "Please tell Ankara to send us doctors and ambulances . . .
please."
One television station broadcast appeals for blood donations. Mr
Ecevit said rescue teams had been rushed to the area and a crisis
management centre formed in Ankara to coordinate relief efforts.
Turkish military helicopters were ferrying the wounded to hospitals in
Ankara. The government's swift response contrasted sharply with its
sluggish reaction to the earthquake on Aug 17, which prompted an
outpouring of national anger.
Hundreds of thousands of victims left homeless in the earthquake
are still sheltering in tents despite government pledges to provide all
weather protection ahead of the harsh Anatolian winter, which is
beginning to set in. Yesterday's earthquake was felt in Ankara,
where terrified residents fled from their homes. It was also felt in
Istanbul and as far south as the Mediterranean resort of Antalya.
President Clinton is scheduled to arrive in Ankara on Monday on a
two-day state visit. He was expected to visit areas affected by the
previous quake.
17 October 1999: 1999: the year that seismic shifts killed 20,000
across the world
22 September 1999: World stunned by third disaster
29 August 1999: Istanbul fails to heed the fearful lesson of tremors
28 August 1999: Turkish quake homeless total rises to 600,000
19 August 1999: Refinery fire threatens earthquake survivors
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 124 of 637: Gi (patas) * Sat, Nov 13, 1999 (12:09) * 1 lines
This has been a terrible year for Turkey.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 125 of 637: Marcia (MarciaH) * Sat, Nov 13, 1999 (12:36) * 1 lines
It has been a bad geological epoch. Since Turkey straddles the Eurasian plate boundary Earthquakes have plagued the region as long as history has been written and rock upthrust and deformation could tell the story. It will continue to be one of the most unstable areas on earth.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 126 of 637: Marcia (MarciaH) * Mon, Nov 15, 1999 (19:24) * 10 lines
Since the above was written a 7.2 aftershock has occurred and taken many more lives in Turkey. For some idea of what they are experiencing and pictures as well check http://quake.wr.usgs.gov/study/turkey/#Nov12_1999_aftershock
ANATOLIAN FAULT MAP
MOLETRACK IN FIELD - WHERE THE EARTHQUAKE FAULT TORE ACROSS TURKEY
EARTHQUAKE CRACKS IN THE GROUND NEAR THE EPICENTER
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 127 of 637: Gi (patas) * Wed, Nov 17, 1999 (16:07) * 1 lines
That was very impressive!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 128 of 637: Marcia (MarciaH) * Wed, Nov 17, 1999 (17:16) * 6 lines
There is a part of the roadway in the Hawaii Volcanoes National Park which looks just like the bottom picture. One afternoon, some high school girls had crept under the barriers and were jumping up and down on a piece ready to fall into the crater - a 300 foot (52 M) drop!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 129 of 637: Gi (patas) * Thu, Nov 18, 1999 (03:32) * 1 lines
*shiver*
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 130 of 637: Marcia (MarciaH) * Thu, Nov 18, 1999 (13:15) * 1 lines
Indeed! The park rangers went out very slowly and casually chatting with the girls and talked them safely back onto more stable ground. Crazy !
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 131 of 637: Marcia (MarciaH) * Wed, Dec 15, 1999 (18:31) * 27 lines
Quake Forces Cult Out of Tunnels
TACLOBAN, Philippines (Reuters) - A quake on Wednesday forced out
more than 2,000 followers of a Philippine cult hiding in tunnels for fear of the
sky raining down fire at the start of the new millennium.
The tremor struck at 1:12 p.m. (0512 GMT) and measured 4.8 on the
open-ended Richter scale, the Philippine Institute of Volcanology and
Seismology said.
The institute said it did not expect aftershocks or major damage. The quake
was centered near the coastal town of Ormoc, 570 km (355 miles) southeast
of Manila.
Officials said followers of cult leader Ceferino Qunito were hiding in dozens of
tunnels in the central province of Leyte.
A spokeswoman for the municipal office told reporters police had been
deployed around the tunnels, which were considered unsafe.
The tremor cracked walls and pavements in the town, she said.
Schoolchildren were also sent home early.
The earthquake-prone Philippines was hit by a quake measuring 6.8 on the
Richter scale on Sunday. Officials reported three deaths and 24 injured but
only minor damage.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 132 of 637: Marcia (MarciaH) * Mon, Dec 20, 1999 (19:40) * 0 lines
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 133 of 637: Marcia (MarciaH) * Mon, Dec 20, 1999 (20:16) * 32 lines
Moderate Earthquake Shakes East Caribbean Islands
CHARLESTOWN, Nevis (Reuters) - A moderate earthquake with its center
about 12 miles east of Antigua jostled residents of the Leeward Islands early
on Monday morning.
On Nevis, people sleeping about 6:45 a.m. when the quake hit were rattled
awake and on Montserrat lamps sitting on dresser tops shook for about 10
seconds, one resident said.
``We haven't had any reports of damage. Strong shaking but nobody's said
anything was damaged,'' said Joan Latchman, a seismologist with the
Seismic Research Unit in Trinidad.
The tremor had a magnitude of between 4.8 and 5.7 on the open-ended
Richter scale, meaning it could have been strong enough to cause heavy
damage in populated areas.
Its epicenter was located at 17.09 degrees north and 61.59 degrees west at a
depth of 11 miles under the sea, according to the Trinidad unit.
It shook Antigua quite strongly and was also felt in Guadeloupe, Martinique,
Montserrat, and St. Kitts and Nevis.
Latchman called the quake moderate.
Different readings have been reported from various seismographic centers.
The 4.8 magnitude was registered in Guadeloupe but the U.S. Geological
Service recorded it as a 5.7. The Trinidad unit, which monitors all seismic
activity for the English-speaking Caribbean islands, listed it at 5.2.
There were no reports of injuries related to the tremor.
Latchman said that quakes of this magnitude occur more than once a year
but one so close to an island happens less often.
Others of similar size in recent years occurred north of Antigua last year and
one off Tobago in 1997. An earthquake of this size in a populated land mass
can be devastating, she said.
The earthquake was not related to nearby Montserrat where the Soufriere
Hills volcano is quiet, said Chelston Lee, spokesman for the Montserrat
Volcano Observatory.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 134 of 637: Marcia (MarciaH) * Thu, Dec 23, 1999 (15:25) * 55 lines
Algeria Quake Death Toll set at 22
AIN TEMOUCHANT, Algeria (Reuters) - Algeria said on Thursday that 22
people were killed when an earthquake flattened several buildings in the
western town of Ain Temouchant.
A government statement carried by state-run radio also said 47 people
remained in hospitals, including seven in critical condition. Scores had been
treated for minor injuries, it said.
Hundreds of people were left homeless when the quake struck on
Wednesday and they, along with others who feared aftershocks, spent the
night in the open.
Scores of women could be seen huddled in corners, covering themselves with
blankets as they waited for relief workers to set up tents in open areas.
Other residents carried mattresses and other household items which they
had salvaged from beneath the debris of mud bricks, all that remained of their
homes.
The government said it would distribute 600 housing units and had set up
tents to accommodate displaced people.
SCHOOLS DEMOLISHED
``I saw several collapsed buildings, including three schools which were
completely demolished,'' said schoolteacher Amina Kali. ``Scores of families
have been left homeless and spent the night outside in freezing
temperatures.''
An earlier official statement put the death toll at 28 with 181 injured in the
quake, which measured 5.8 on the Richter scale and shook several western
provinces of the North African country at 6:37 p.m. on Wednesday.
There was no immediate explanation for the revised figures.
``Fortunately, we don't have tall buildings. Otherwise the death toll would have
been much higher,'' a local official told Reuters.
``It was also relatively easy for rescue workers to reach trapped people
quickly. We don't have any missing people.''
State radio said the earthquake's epicenter was in Tissalat mountains where
Ain Temouchant is located.
But the impact of the quake was still evident in the rubble and on the faces of
many people wandering the streets of Ain Temouchant, a town with a
population of 56,000, some 45 miles west of the Mediterranean city of Oran.
Several expressed anger at what they saw as the government's slow
response to deal with the disaster.
``Many buildings are completely demolished. I've lost my two sisters here,''
Abdelhadi Mohammed, 30, said pointing to the rubble of what used to be his
home.
``But instead of rushing to our help, the authorities appear more concerned
about the prisoners who escaped from jail.''
CONVICTS FLEE AS PARTS OF JAIL COLLAPSE
Residents said many inmates fled after parts of the jail collapsed. At least
three prisoners died under the rubble, they added.
Energy officials have said the quake caused no damage to a major oil and
gas export terminal and refinery at Arzew, just a few miles east of Oran.
There had been no interruption at both facilities, the officials added.
Arzew, one of Algeria's two main export terminals, also has a refinery with a
processing capacity of 60,000 barrels a day.
Algeria's western region has been hit by several earthquakes in the past, the
deadliest of which was in 1980 when at least 2,590 people were killed in an
earthquake measuring 7.3 on the Richter scale.
The quake devastated the Algerian town of El Asnam, leaving 330,000 people
homeless. The town was subsequently rebuilt and renamed Chlef.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 135 of 637: Gi (patas) * Tue, Dec 28, 1999 (14:44) * 1 lines
Earthquakes are terrifying and people dying or being injured or losing property is not a laughable matter, but Marcia, some of those headlines had me LOLing! Sorry. Had to tell.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 136 of 637: Marcia (MarciaH) * Tue, Dec 28, 1999 (14:55) * 1 lines
The made me laugh, as well, and I do know how terrifying earthquakes can be. But some of these stories are amazing...Glad you enjoyed it as much as I did.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 137 of 637: lidya maccarthy (livamago) * Sat, Jan 15, 2000 (18:31) * 1 lines
My dear Marcia, I know you are enjoying your weekend, so I'll await your report on the quake in China...I heard on the news that fortunately there were not too many casualties.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 138 of 637: Marcia (MarciaH) * Sun, Jan 16, 2000 (12:02) * 10 lines
Just peeking in here for a second before hitting the road with the relatives. Had no idea there was an EQ in China...More when I get home...and some sleep!
Thanks for posting Lidya - you are a friend extraordinarie. Bless you! *hugs*
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 139 of 637: lidya maccarthy (livamago) * Sun, Jan 16, 2000 (20:24) * 1 lines
Apparently there were two tremors; the aftershock being stronger than the eq. I don't in which area it occurred. Perhaps when you have time you can show us a map?
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 140 of 637: lidya maccarthy (livamago) * Sun, Jan 16, 2000 (20:28) * 1 lines
What is wrong with my English tonight? Mayhap the weekend in the paternal home and the language of the cradle are corrupting my understanding of the lingua franca...
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 141 of 637: Marcia (MarciaH) * Mon, Jan 17, 2000 (00:44) * 5 lines
The earthquakes in Yunnan Province:
00/01/14 22:09:04 25.58N 101.15E 33.0 5.2Mb B YUNNAN, CHINA
00/01/14 23:37:08 25.60N 101.14E 33.0 5.9Ms A YUNNAN, CHINA
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 142 of 637: lidya maccarthy (livamago) * Mon, Jan 17, 2000 (09:45) * 1 lines
Great work dear!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 143 of 637: Marcia (MarciaH) * Mon, Jan 17, 2000 (14:23) * 1 lines
Unfortunately I have not yet found an Earthquake map which updates automatically, but I have not given up on it most certainly. The hunt for just the right graphics for Geo is part of the fun!
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 144 of 637: Marcia (MarciaH) * Tue, Feb 8, 2000 (17:52) * 1 lines
Yes, I did...it is posted on EARTHQUAKE!!! Geo topic 26.
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 145 of 637: Marcia (MarciaH) * Thu, Apr 6, 2000 (15:45) * 3 lines
Ok, there is a smashing map of the fault lines in San Francisco Bay at this location http://www.sfbayquakes.org/
I would post it but at 178KB, it is far too big and slow. Enjoy! (courtesy of David's surfing for things needed at work.)
Topic 9 of 92 [Geo]: Seismology: Earthquakes - The Science and Updates on Current Activity
Response 146 of 637: Maggie (sociolingo) * Sun, Sep 24, 2000 (07:32) * 40 lines
Nothing much happened in here since April --I don't believe it!!!!
Earthquake hits Warwickshire, England
The biggest seismic event in Britain for 10 years ....
SEISMIC ALERT: WARWICK, WARWICKSHIRE 23 SEPTEMBER 2000 04:23 UTC 4.2 ML
http://www.gsrg.nmh.ac.uk/alert_info.htm
BGS have received many reports, from the Police, the media, the Emergency Planning Officer and residents in Cheadle (85 km to the north), Gloucester (65 km to the south), Peterborough (95 km to the east), Birmingham, Coventry, Warwick, Rugby, and Leamington Spa, of a felt event at 04:25 UTC this morning (23 September 2000). Felt reports describe "we were alarmed", "the bed moved", "the whole house shook", "we were woken from sleep" and "the whole building trembled". The BGS rapid-access networks detected an event at 04:23 UTC.
The following preliminary information is available for this earthquake:
DATE : 23 September 2000
ORIGIN TIME : 04:23 45.8sUTC
LAT/LONG : 52.28o North / 1.61o West
GRID REF : 426.5 kmE / 265.0 kmN
DEPTH : 13.1 km
MAGNITUDE : 4.2 ML
INTENSITY : 5+
LOCALITY : Warwick, Warwickshire
Historically, a similar earthquake occurred near Tewksbury, some 50 km to the south west with a magnitude of 4.1 in 1768. More recently, a magnitude 3.0 earthquake was felt at Stratford-upon-Avon in May 1994, 17 km to the south west. The largest earthquake within 100 km occurred at Bishops Castle near the Welsh border in April 1990, with a magnitude of 5.1 (almost 10 times the ground movement and 30 times the energy of the Warwick earthquake). It was felt over the whole of Wales, most of England and into Ireland and Scotland
Here's the list from the British Geological Society of EArthquakes in the UK this month
http://www.gsrg.nmh.ac.uk/recbrit.html
YearMoDy HrMnSecs Lat Lon kmE kmN Dep Mag Locality Int
20000923 042345.8 52.28 -1.61 426.5 265.0 13.1 4.2 WARWICK,WARWICKSHIRE 5+
20000921 073048.3 56.99 -5.47 189.0 794.2 6