Cascadia and NWerners - every one OK?greenspun.com : LUSENET : TimeBomb 2000 (Y2000) : One Thread |
Hope all of you are OK - just heard they have updated tonight's quake to 5.5 It was pretty strong here - didn't feel the 3.0 yesterday but lights were swinging and hanging plant hit the window tonight but didn't break. Gees - as if there wasn't enough to think about - but hey - at least WE ARE PREPARED!!!! Again hope all are OK.
-- Valkyrie (anon@please.net), July 02, 1999
what part of the country just had an earthquake.
-- y2k aware mike (y2k aware mike @ conservation .com), July 02, 1999.
The quake was originally broadcast as a 3.2 that occurred at 6:43 pm pacific time. It was just upgraded to 5.5 and was felt all over Oregon and Washington state.
-- RNLurker (RNlurker@spiritone.com), July 02, 1999.
Sorry - we had a 5.5 tonight at 6:47pm apparently centered near Satsop in SW Washington (that's the state for you Easterners!)- felt as far north as Vancouver Island and south as far as Seaside Oregon - as far as I have heard anyway. 40km deep as far as they are saying on TV.
-- Valkyrie (anon@please.net), July 02, 1999.
Hey Kym ;^) Boy did we feel it! Such a weird disorienting rollllling sensation. Felt blood & body fluids really wave, like a 1000-strong full moon, vision changed, time warp, desk rolllling. Whoa! No damage, just rolls. No sound either, on this one. 4 earthquakes in the last day in Cascadia. Felt like @ 20 seconds this last one. Rolllllling!We posted the first time on a couple threads to Valkyrie & Brian, then disconnected when the 2nd stronger one hit. Earthquakes been happening around the globe in pairs, so maybe in a couple hours ... :^)
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-- Ashton & Leska in Cascadia (allaha@earthlink.net), July 02, 1999.
It was also felt in Leavenworth, WA -- 120 miles east of Seattle.
-- glinda (glinda@overtherain.bow), July 02, 1999.
I guess I'm slowly getting braver Leska. No earth shaking up here. I guess the mountain cushions it a bit.
-- RNlurker (RNlurker@Spiritone.com), July 02, 1999.
We were near the earthquake center, shopping in the mall in Aberdeen. Quickly got under a table as did others. The really scary part was lack of lack of radio information--I didn't know if a tsunami was coming so while heading home to the coast kept planning where I could head up hill . Need to get scanner and put emergency gear in car.
-- Lian Lurker (anony@anon.com), July 02, 1999.
Saturday, 3 July 1999 3:25 (GMT), (UPI Spotlight)5.5 quake hits Washington state
SEATTLE, July 2 (UPI) - A moderate-strength earthquake hit the Pacific Northwest (late Friday), the third temblor to shake the region in the past 24 hours.
The United States Geological Survey says the quake hit 5.5 on the Richter scale and struck at 6:44 p.m. Pacific Daylight Time with its epicenter 64 miles west-southwest of Seattle.
The rumble was widely felt from Seattle to southern Oregon and some damage was reported in Gray's Harbor, Wash.
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-- Ashton & Leska in Cascadia (allaha@earthlink.net), July 03, 1999.
Lian, an earthquake kit in the car is handy. The Red Cross has a check-off list which they'll send you for free. After an earthquake sometimes they partner with a store, like Freddy's, and distribute the Lists in the supermarket.We got Rubbermaid Roughneck plastic storage containers on sale and outfitted them with kits. We put items in ziplock bags to keep mold at bay. These car kits are also good for the incredible traffic jams that result in Winter snow up here.
Old Git has been advocating getting a police scanner to stay on top of the news, and we've decided to get one if we can earn the $$. Thanks Old Git! We've heard, if you're near the coast, head uphill right away when you feel the earth move. Tsunami jitters if the jolt originated Subduction ...
On TV all the channels were having ppl call-in and describe their experience. Like sitting around the campfire sharing -- it helps!
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-- Ashton & Leska in Cascadia (allaha@earthlink.net), July 03, 1999.
Glad to here all here in Cascadia are safe, if not completely sound (chuckle)__*:-}.__I was on the way home and listening to AM radio. Two hosts, one felt it the other didn't. I didn't feel it because I was on shock absorbers at the time.
I used to look forward to them as a kid. Guess I have grown up some since,... too bad. In Alaska we would get a shaker quite often. Funny, we were just talking about it not being nice to *fool mother nature* earlier today. Hope this isn't the prelude to the big one predicted for this area. We're overdue according to some geo-experts. Others say just the opposite, as usual. But they do both agree, that it is when, not if..., sound familiar?
Hey Ashton and Leska. This isn't the kind of fireworks we look forward to huh? Looking forward to our next Rendezvous, maybe it better be sooner than later! Hope all is well with you. Email me ok?
-- Michael (mikeymac@uswest.net), July 03, 1999.
Hi Michael! Hhhmmm, fireworks, rendezvous, ding! How about a quickly-put-together Portland-Vancouver-wider-area 4th of July Yourdynamite get-together? To see fireworks and talk about 6-month Millennium kabooms? Sounds good to us! Rock & roll in Cascadia!
-- Ashton & Leska in Cascadia (allaha@earthlink.net), July 03, 1999.
http://komotv.com/EARTHQUAKE UPDATE: Strength Upgraded, Damage Reports Coming In July 2, 1999
WESTERN WASHINGTON - The U.S. Geological Survey now says the earthquake that rattled the Northwest measured 5.5 magnitude.
The quake is being blamed for a house fire in Raymond.
A neighbor, Pat Campbell, says he talked to the home owner. The owner told him he heard a pop and then saw flames coming from the bedroom.
In a matter of minutes the house was engulfed in flames.Campbell says his neighbor was "singed" but is okay.
Damage reports are coming in from Aberdeen as well.
The city fire chief says the department has received a report that the roof of a furniture store has collapsed.
At least two people suffered minor injuries.
The chief says firefighters are extremely busy responding to calls of natural gas leaks throughout the city.
Information Officer Rob Harper of the Emergency Management Department has received preliminary reports of minor injuries in Grays Harbor County due to the Friday night quake.
Preliminary damage reports have also come in. Harper says the department went into a state of "activation" at just after 7 p.m. That means they're calling in staff to coordinate state-wide response.
We're also receiving reports that the quake knocked items off of store shelves at the Bartell Drugs store on lower Queen Anne in Seattle.
There have also been reports of phone service going out in briefly in Tacoma and Aberdeen.
KOMO 4 news is getting calls from people from Oregon all the way North to Victoria, British Columbia who say they felt the quake.
One caller tells us the earthquake lasted 15 to 20 seconds and he felt a rolling motion.
The last time one that strong (5.5) hit our area was the Duval earthquake in 1996.
Seismologists at the UW say today's quake is not related to last night's 3.0 quake near Vashon Island.
[ 5.7 off Vancouver Island too ]
Today's quake was centered near Satsop, which is between Olympia and the Washington Coast. It was approximately 23.5 miles deep.
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-- Ashton & Leska in Cascadia (allaha@earthlink.net), July 03, 1999.
http://www.msnbc.com/local/KING/304036.asp5.5 Quake Jolts Pacific Northwest
TACOMA, July 2 The third sharp earthquake in two days jolted an area from Oregon to British Columbia Friday night, collapsing a furniture store roof in Aberdeen and rupturing gas and water mains. Residents reporting a deep rolling, rumbling sensation.
IN ABERDEEN, about 20 miles west of the epicenter here, Grays Harbor Community Hospital reported four people with quake-related injuries, including a man who fell off a roof and a woman who dropped a baby. The injuries were reportedly not serious.
No injuries were reported from the collapse of the furniture store roof. Police and fire units responded to the reports of the ruptured mains.
Gas leaks, toppled chimneys and power outages were reported throughout Grays Harbor County, said Rob Harper of Washington State Emergency Management, with damage in Hoquiam, Aberdeen, Brady, Satsop and Montesano.
The quake, which hit at 6:43 p.m. PDT, was estimated at magnitude 5.5 by the U.S. Geological Survey in Golden, Colo. The Pacific Northwest Sesimograph Network at the University of Washington seismology lab in Seattle estimated it at 5.1.
Its sort of like the blind man or a couple of blind man describing an elephant and theyre all feeling a different part of the body, said Bill Steele, UW seismology lab coordinator.
He said the Colorado lab was looking at one facet of the quake and the UW lab was looking at the duration of shaking.
The quake was centered 5 miles north of here. Satsop is about 68 miles southwest of Seattle.
The quake occurred at a depth of 25 miles, the seismograph lab reported.
Harper said the state activated its emergency management center near Fort Lewis shortly after the quake hit, calling in staffers to coordinate whatever statewide response might be needed.
Stuff was flying off the shelves, said Trudy Donnor, who was part of a cleaning crew getting ready to start cleaning the four-story state Insurance Building in Olympia when the quake hit.
Thats the first one Ive ever felt in my life, and I didnt think it was funny at all. I didnt know a concrete building could sway like that.
Her colleague, Tony Cepeda, said he and Donnor huddled in a corner to avoid the flying items, then hurried down four flights of stairs to check on coworkers outside.
Callers from Astoria, Ore., to British Columbia to Cle Elum in central Washington phoned Seattle television stations to report they had felt the quake.
I was in the hall and I remembered youre supposed to stand in a doorway, said Barbara Saben of Olympia. Then I thought of going outside but I could see all the power lines shaking and I felt like that wasnt such a good idea!
At the Ribeye Restaurant in Olympia, a full house of Friday night diners sat calmly as the one-story building creaked and shook.
Yep, its an earthquake, one man said. People smiled at each other in amazement.
Deeper quakes are felt more widely than shallow ones, the UWs Steele said.
Deeper quakes shake less violently at the surface but are felt over a wide area, he said.
The Thursday night quake that jolted the south Puget Sound area was a 3.0 magnitude, centered near Maury Island north of Tacoma. It occurred at a depth of 14.5 miles.
The biggest earthquakes in Washington in the past 50 years were one near Olympia that registered 7.1 in 1949 and another that was measured at 6.5 near Renton, south of Seattle, in 1965.
A network of fault lines criss-crosses the Puget Sound area, scientists say. A major fault line runs through downtown Seattle.
Separately, a magnitude 5.7 quake occurred at 4:45 a.m. Friday under the Pacific Ocean off Vancouver Island, about 115 miles southwest of Port Hardy, British Columbia. It was not felt because of its distance from land.
The USGS center in Golden said it was unrelated to the Puget Sound quakes.
--------------------------------------------------------------They *always* say clusters of quakes are "unrelated." ;^D
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-- Ashton & Leska in Cascadia (allaha@earthlink.net), July 03, 1999.
It didn't make it as far as the Southern end of the State of Jefferson that I could notice. That is fine with me. Let Mt. Shasta sleep a while longer - lol.
-- marsh (armstrng@sisqtel.net), July 03, 1999.
over on csy2k, walking_crow:"If you're up around here, it's time to get your act together.
The earthquakes have been ramping up all day, from R3.0 late last night to R5.5 late today. And going deeper and deeper into the subduction zone. Epicenters moving west out into the zone.
Time to get your gear secured, get your water and fuel containers topped up. Get everything buttoned down, into hardened storage, before sunrise.
Might be nothin', might be foreshocks. Tomorrow could get interesting.
(For those of you who are _not_ from here, this Heads-up is for the folks who don't follow the local news (lots), and didn't happen to feel the temblors building. An R.9 from the subduction zone is in the cards, sooner or later. Overdue, actually. As are eruptions of one or more of our local volcanoes. If you're not in the Puget Sound region, please ignore.)
Y2K, where is thy sting? compared to an R.9 earthquake, or a Mt. St. Helens-type eruption, you ain't nothin' much.
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-- Ashton & Leska in Cascadia (allaha@earthlink.net), July 03, 1999.
In Victoria and didn't feel a thing. A&L Yes the threat of a 9 is likely. I am actually doing a Y2K site up with a focus on Earthquake and using that Oregon University findings article you posted a while back as front and center. Y2K will be a cake walk, even worse on the island as transportation is a big consern (DUH :0)When BD and Chuck get there site going I will post some Earthquake info to get folks motivated out west here. This is the third quake in just a few days. That is pretty uncommon for them to be noticed in such a short time
When I was a teen we were camping on a REALLY small island on a lake (inbibing a bit) and got hit with an earthquake at 2:00 am. It was wild having peace and quite then this awesome roar from the pacific then the shake. Like a ripple moving the land. Incredible.
-- Brian (imager@home.com), July 03, 1999.
Gee Guys -And I was wondering where that d*&^% comet is!! Sneaky thing to put that lil' ole earthquake in here when we've got all the other stuff to worry about too!! Heard there was a prediction for a stronger one tomorrow but do not know where that came from. A friend told me he heard it tonight sometime. Been quite a night what with the escapee from Monroe prison (my husband missed this one because he was up flying around looking for him - they caught him) and the explosion in Everett - another one. Interestinger and interestinger I'd say.
-- Valkyrie (anon@please.net), July 03, 1999.
4th of July weekend starts with a bang! *Some* folks (been scouring prophesy sites) say Nostradamus predicted 4th of July 1999 attack of some sort (feast of eagles), but we also found other Nostry dated quatrains, so not 100% unique this 7th month of 1999. News tonight showed quake locations -- it's been 3 (not 4, sorry) in the last 24 hours, and like walking_crow said, they're progressively moving toward the Cascadian Subduction Zone.Brian, your site sounds valuable! News folk chuckling about not doing their kits yet -- want to rap their knuckles. Gonna take a 7 to motivate ppl to store water.
Valkyrie, *another* explosion in Bellingham -- geesh. Time for bed, we'll have to read those articles tomorrow. Got our shoes & helmets bedside tonight!
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-- Ashton & Leska in Cascadia (allaha@earthlink.net), July 03, 1999.
A&E&V A&E after being into cosmology for 30 years planets and comets don't worry me. Living on an Island from birth you hear about it "splitting in half" what a joke. But what they don't tell you is that the type of ground you are on is critical to the ability to take a real good shaker. Case in point. In Vancouver BC there are large areas that are built on the Frazer River Delta, whole towns. And it is a CERTIAN fact that if a BIG one hits the "mud" under the town will "melt". So here is what I have so far. Hope you like it. Y2K is a joke compared to a real disaster. Oregon Live: 5-4-99 Quake forecast shifts to landQuake forecast shifts to land
Scientists say data show the heart of a huge disaster under the Coast Range and the western Willamette Valley
Tuesday May 4, 1999
By Richard L. Hill of The Oregonian staff
SEATTLE -- New research indicates that a massive earthquake could occur directly underneath the Oregon Coast Range and the western portion of the Willamette Valley.
For nearly 15 years, scientists have warned that a magnitude 8 or 9 earthquake could strike about 30 miles offshore and rock the coast, causing severe shaking and huge tsunamis. However, recent data gathered from satellites by scientists at Oregon State University and three other institutions show that the colossal quake could hit much farther inland and cause more severe damage to a larger area -- including the more populated cities of the Willamette Valley such as Portland, Salem and Eugene.
No one knows when such an earthquake might strike the Northwest, but the geologic evidence suggests that such quakes occur about every 400 years, plus or minus 200 years.The last major earthquake on the Oregon coast - - believed to be a magnitude 9 -- occurred 300 years ago, previous studies showed.
Chris Goldfinger, a marine geologist at OSU, and his colleagues will present their findings today in Seattle at the annual meeting of the Seismological Society of America. They also reported the results recently to the Oregon Seismic Safety Advisory Committee.
The research team found that the locked portion of the Cascadia Subduction Zone -- where the eastward-moving Juan de Fuca Plate plunges under the western-moving North American Plate -- extends beneath the Coast Range and as far as the western side of the Willamette Valley. The locked zone probably is wider than previously thought, although the new data give less information about the width.
To come to this new conclusion, the scientists used the satellites of the Global Positioning System to detect extremely small movements of the Earth's surface in an area from the central Oregon coast into the central Willamette Valley. Two permanent GPS receivers in Newport and Corvallis monitor movement full time, while other receivers were taken to several sites to measure yearly movement.
The researchers expected to find little movement because of the lack of earthquakes and previous data that showed little uplift in central- western Oregon, something commonly associated with a locked subduction fault.
Instead, they found that the ground is moving nearly half an inch a year toward the northeast. The rapid velocity worries earthquake researchers and indicates that the underlying plates are locking up rather than sliding by each other, resulting in incredible strain.
As the Juan de Fuca Plate presses forward to the northeast in the locked zone, it causes the piggybacking North American Plate to bulge upward and inland toward the northeast. The pressure continues to build for years until an earthquake unleashes the stress in one powerful jerk, causing the bulge to collapse and forcing the area to drop instantly.
"We were very surprised by the results we got," said Goldfinger, an OSU assistant professor of oceanography. "It was quite different from what we expected. We thought this would be an area that would show little, if any, movement."
The half-inch of movement each year is imperceptible, but the accumulated pressure that has been stored since the last major earthquake in 1700 can only be unleashed in an earthquake.
"That means there's been 300 years of strain that will be released," said John L. Nabelek, a seismologist and OSU associate professor of oceanography who participated in the study. "And it's just not the proximity of the strain to larger cities that is a concern, but we've found that the surface area of the entire locked zone is much larger than previously thought. That means a larger quake."
Goldfinger said the data suggest that the two plates are "essentially bolted together -- they're 100 percent coupled.
"In addition, the Coast Range is an extremely strong, rigid block of rock that is more than capable of accumulating the sort of energy you need for a large earthquake."
Other scientists involved in the study included Robert McCaffrey, an associate professor of earth and environmental science at Rensselaer Polytechnic Institute in Troy, N.Y., and Mark Murray of Stanford University. The work was conducted in cooperation with Curtis L. Smith of the National Geodetic Survey in Salem. Will Prescott of the U.S. Geological Survey supplied previous GPS measurements that improved the results.
The new findings have made Goldfinger, who in previous years argued that the largest subduction-zone quake was more likely to be a magnitude 8 than a 9, rethink his theory. "This changes my views 180 degrees," he said. "The whole argument for an 8 rather than a 9 disappears."
Although quakes of either size would be devastating, shaking from a magnitude 9 event would last two to three minutes -- about twice as long as the shaking a magnitude 8 quake would produce.
Researchers elsewhere in the Northwest have come up with similar results using the satellite-based Global Positioning System. The locked zone between the plates extends farther landward beneath Washington and Southern Oregon as well, and a little farther under Vancouver Island than previously thought.
A larger research effort, planned next year, will examine an area from Northern California to Canada, including Portland.
The Cascadia Subduction Zone is a 750-mile long fault that runs 60 to 150 miles offshore from British Columbia to Northern California. Similar subduction zones have produced the two largest recorded earthquakes in the world -- a magnitude 9.5 quake on the coast of Chile in 1960 and a magnitude 9.2 quake in southern Alaska in 1964.
No quakes of that size have been measured in Oregon's brief recorded history, but evidence from buried marshes along the coast indicate that such events occurred at least seven times in the past 3,000 years. The last one hit the coast in January 1700, and large quakes appear to have struck about 1,100 years ago, 1,300 years ago and 1,700 years ago.
Curt D. Peterson, a professor of geology at Portland State University who has uncovered many of the buried marshes along the Northwest coast, said the new research supported his decade-old theory that the locked zone might be twice as wide as thought and capable of generating a huge quake.
"I hope this new evidence is going to help planners and government agencies get back on track about the seriousness of the hazard. The metro areas such as Seattle and Portland need to examine what a magnitude 9 means in terms of the whole region going all at once," Peterson said.
Mark Darienzo, earthquake and tsunami program coordinator for the Oregon Office of Emergency Management, said the study supported concerns that a huge subduction-zone earthquake "is not just a coastal problem, but could be an inland problem as well."
"More research is needed," Darienzo said, "but these new findings show that the potential for such a quake can't be overlooked -- it shouldn't be just tossed aside."
You can reach Richard L. Hill at 503-221-8238 or by e-mail at richardhill@news.oregonian.com.
More Earthquake links
Earthquakes in western Canada are monitored by the
Geological Survey of Canada from the Sidney subdivision
of GSC: Pacific (the Pacific Geoscience Centre). Together
with staff in Ottawa, we comprise the Canadian National
Earthquake Hazards Program - aimed at understanding the
causes of, and hazards associated with, earthquakes in
Canada. This program provides input to the National
Building Code of Canada, in order that engineered
structures can be designed appropriate to the earthquake
hazard in the region. In addition to operating the
seismograph network and locating and cataloging more than
1000 earthquakes each year in western Canada, research is
carried out in a wide range of earthquake studies; including
seismic hazard, strong motion seismology, earthquake
source studies, seismotectonics, and earth structure
studies.The Megathrust Earthquake of 1700
GEOLOGICAL SURVEY OF CANADA
(with picture)
The M=9 Megathrust Earthquake
& nbsp; & nbsp; of 1700This great earthquake occurred about 9 pm on the night
of January 26 in the year 1700. This was almost 100 years before
the first European explorers made contact with native peoples on
the west coast. The time and date of the earthquake are known
because the large tsunami, or tidal wave, generated by the
earthquake swept across the Pacific Ocean and did considerable
damage at several places along the east coast of Japan. Japan has
a written history dating to that time, and the size of the tsunami
and its arrival time were well recorded. Using this, and other
historical data, scientists were able to calculate the time of
occurrence, location, and size of the generating earthquake.This was one of the world's great earthquakes with a
magnitude estimated at 9. Oral traditions of the native peoples of
Vancouver Island suggest the tsunami destroyed a village at
Pachena Bay on the west coast of Vancouver Island, and that the
shaking damaged houses in the Cowichan Lake region of south
central Vancouver Island.This earthquake occurred on the Cascadia Fault, the
boundary between the North American and Juan de Fuca plates.
This type of large earthquake is now known as a megathrust
earthquake.
-- Brian (imager@home.com), July 03, 1999.
Here is a web site on a geologist that predicts earth quakes. He is pretty damn good at it too. His main source of info is earth tides. And you in Cascadia don't know what you are taking about re Mt St Helens. We were in it! It was not fun, cost us a lot of money and grief. Give me an earthquake anyday if I were in the same area (not a large city) http://www.syzygyjob.com/index.shtml
-- Taz (Tassie @aol.com), July 03, 1999.
Channel 7 KIRO (CBS affiliate in Seattle) inisisted that it was a 5.1 instead of a 5.5 Seems like the 5.5 came out of Colorada, but the 5.1 came from the scientists at the University of Washington.
-- Jammy (wesleyan@dog.com), July 03, 1999.
In Bellevue, someone told us the quake lasted for a couple of minutes. East of Lake Sammamish, we only felt it for maybe 30 seconds. We've only been here since December, so this was our first one. Pretty insubstantial here, but the epicenter was about 85 miles away.No damage, just an eerie feeling when you realize the terra isn't as firma as you always thought.
-- Don (whytocay@hotmail.com), July 03, 1999.
This kinda sums them all up:'Stuff Was Flying' Earthquake Rattles Northwest
9.08 a.m. ET (1308 GMT) July 3, 1999
By David Ammons
SATSOP, Wash. Jim Moore had just closed his furniture and appliance store and was preparing to drive home when the building's windows blew out and the roof caved in as he watched.
"When I think about it," he said after checking the damage to his Aberdeen business, "if I had only been just a couple of minutes later getting out of there ... ."
The region's biggest earthquake in more than 30 years jolted residents from Oregon to British Columbia and injured at least four people. The quake struck at 6:43 p.m. Friday and was estimated at magnitude 5.5 by the U.S. Geological Survey in Golden, Colo.
It was centered near Satsop, about 70 miles southwest of Seattle.
"This is essentially the biggest earthquake in this region since 1965," said Steve Malone, a University of Washington seismologist.
The area's second sharp earthquake in two days toppled chimneys and ruptured gas and water mains. A hospital reported four people with quake-related injuries that were not considered serious.
"Stuff was flying off the shelves," said Trudy Donnor, who was getting ready to start cleaning the four-story state Insurance Building in Olympia when the quake hit. "I didn't know a concrete building could sway like that."
Gas leaks and power outages were reported throughout Grays Harbor County, said Rob Harper of Washington State Emergency Management. The top floor of the three-story county courthouse received major damage.
There were no initial reports of damage to highways or bridges. But callers from Astoria, Ore., to British Columbia to Cle Elum in central Washington phoned Seattle television stations to say they had felt the quake.
"I was in the hall and I remembered you're supposed to stand in a doorway," said Barbara Saben of Olympia. "Then I thought of going outside but I could see all the power lines shaking and I felt like that wasn't such a good idea!"
Other residents described a rolling, rumbling sensation.
"We were just sitting down to dinner and the milk started slopping out of the glasses and the baby started screaming," said Bonnie Fluckinger of Hoquiam. "China from the china hutch started coming out at us. It was definitely scary."
She and her husband tried to call 911 but the phones didn't work.
Early reports of magnitude differed. The UW lab estimated it at 5.1 but Malone said the equipment at Golden was better at measuring deep quakes.
A quake Thursday night jolted the south Puget Sound area and had a 3.0 magnitude. It was centered near Maury Island north of Tacoma.
Separately, a magnitude 5.7 quake rumbled under the Pacific Ocean off Vancouver Island, about 115 miles southwest of Port Hardy, British Columbia. The quake early Friday was not felt because of its distance from land.
-- Gayla (privacy@please.com), July 03, 1999.
7/3/99 -- 2:15 PMQuake Jolts Anchorage
PALMER, Alaska (AP) - A moderate earthquake jolted Anchorage and much of the rest of southcentral Alaska on Saturday, but no damage was reported.
Bruce Turner, a scientist at the Alaska Tsunami Warning Center, said the temblor had a preliminary magnitude of 4.9 and occurred about 45 miles southwest of Palmer at 7:26 a.m.
The quake did not generate a tsunami, or seismic sea wave.
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Whew, it turned North instead of following the southerly projection. Still, we're battening the hatches just in case.
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-- Ashton & Leska in Cascadia (allaha@earthlink.net), July 03, 1999.