Magnitude 7.7 earthquake hits Canada's British Columbia, USGS reports
Source: Reuters
A magnitude 7.7 earthquake hit Canada's Pacific coast province of British Columbia on Saturday night, the U.S. Geological Survey reported.
The quake was centered 123 miles south-southwest of Prince Rupert at a depth of 6.2 miles, the USGS said.
Read more: http://www.reuters.com/article/2012/10/28/us-quake-canada-idUSBRE89R01D20121028
Voice for Peace
(13,141 posts)roguevalley
(40,656 posts)Coyotl
(15,262 posts)Last edited Sun Oct 28, 2012, 07:50 AM - Edit history (1)
Tectonic Summary
The October 28th, 2012 (October 27 at the location of the epicenter) M 7.7 earthquake south of Masset, Canada, occurred as a result of oblique-thrust faulting near the plate boundary between the Pacific and North America plates. At the location of this event, the Pacific plate moves approximately north-northwest with respect to the North America plate at a rate of approximately 50 mm/yr.
This earthquake is likely associated with relative motion across the Queen Charlotte fault system offshore of British Columbia, Canada. Studies of tectonics in this region suggest plate motions are taken up by strike slip faulting parallel to the plate boundary, accompanied by lesser amounts of thrust motion to accommodate the oblique nature of the plate motion vector between the two plates with respect to the orientation of the main plate boundary fault structure. This oblique component of plate motion may involve either underthrusting of the western edge of the Pacific Plate beneath North America, or be taken up on crustal faults within the North America plate. The October 28th earthquake is consistent with either scenario.
This region of the Pacific:North America plate boundary has hosted 7 earthquakes of magnitude 6 or greater over the past 40 years the largest of which was a M 6.6 earthquake in 2009, 80 km to the south east of the 2012 earthquake. In 1949, a M 8.1 earthquake occurred closer to the Pacific:North America plate boundary, likely as a result of strike-slip faulting, approximately 100 km northwest of the October 28th earthquake, near the northern extent of Haida Gwaii region (formerly Queen Charlotte Islands).
GRAPHIC at http://earthquake.usgs.gov/earthquakes/eventpage/usb000df7n#summary
PearliePoo2
(7,768 posts)Yikes! As of 5 am PDT there have been 35 aftershocks. Most in the high 4 magnitude.
TheDebbieDee
(11,119 posts)between Washington State and Alaska?
Angry Dragon
(36,693 posts)teddy51
(3,491 posts)PatrynXX
(5,668 posts)dreams.... (tea party member too. )
so as it's one of his dreams know it too well
Locut0s
(6,154 posts)Rural areas of BC are much more Conservative than here Vancouver but still pretty liberal compared to the US. And there are many down right hippie communities out along the coast too.
The Second Stone
(2,900 posts)wouldn't that be awful?
Rosa Luxemburg
(28,627 posts)appleannie1
(5,068 posts)32 minutes ago West Coast and Alaska Tsunami Warning Center
How likely:How soon:How severe:
A tsunami Warning is now in effect which includes the coastal areas of British Columbia and Alaska from the north tip of Vancouver Island, British Columbia to Cape Decision, Alaska (85 miles SE of Sitka). - Event details: Preliminary magnitude 7.1 (Mwp) earthquake / Lat: 52.863, Lon: -131.942 at 2012-10-28T03:04:11Z Tsunami warnings mean that a tsunami with significant widespread inundation is expected, or occurring. Warnings indicate that widespread dangerous coastal flooding accompanied by powerful currents is possible and may continue for several hours after the initial wave arrival.
uppityperson
(115,677 posts)NoOneMan
(4,795 posts)uppityperson
(115,677 posts)"A tsunami Warning is now in effect which includes the coastal areas of British Columbia and Alaska from the north tip of Vancouver Island, British Columbia to Cape Decision, Alaska (85 miles SE of Sitka). "
If you open up all the sites below, it has New Hampshire in the list. But the warning in N Vancouver Island to Cape Decision, AK. Been watching Noaa/etc here on WA coast
Viva_La_Revolution
(28,791 posts)uppityperson
(115,677 posts)noaa and tsunami people, northern Vancouver island to AK are under a watch. Here it is just "if" it was big enough, it would get here. And yes, we had the one from Japan last year. Will keep monitoring but it isn't OMG THE WHOLE WEST COAST!!!!! thing.
Viva_La_Revolution
(28,791 posts)even if it's just a little surge
uppityperson
(115,677 posts)yes, it is a big quake and yes, they are expecting water to move around. But no, not "whole coast" thing.
Be aware, be watchful. Don't under react but don't over react. That is all.
Fuddnik
(8,846 posts)kestrel91316
(51,666 posts)uppityperson
(115,677 posts)to AK.
Here is latest from NWS/NOAA
TSUNAMI MESSAGE NUMBER 3
NWS WEST COAST/ALASKA TSUNAMI WARNING CENTER PALMER AK
910 PM PDT SAT OCT 27 2012
A SMALL TSUNAMI HAS BEEN RECORDED ON A DEEP OCEAN PRESSURE SENSOR.
THE WARNING REGION REMAINS THE SAME IN THIS BULLETIN.
...THE TSUNAMI WARNING CONTINUES IN EFFECT FOR THE COASTAL
AREAS OF BRITISH COLUMBIA AND ALASKA FROM THE NORTH TIP OF
VANCOUVER ISLAND BRITISH COLUMBIA TO CAPE DECISION
ALASKA/LOCATED 85 MILES SE OF SITKA/...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
CALIFORNIA - OREGON - WASHINGTON AND BRITISH COLUMBIA FROM
THE CALIFORNIA-MEXICO BORDER TO THE NORTH TIP OF VANCOUVER
ISLAND BRITISH COLUMBIA...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
ALASKA FROM CAPE DECISION ALASKA/LOCATED 85 MILES SE OF
SITKA/ TO ATTU ALASKA...
RECOMMENDED ACTIONS
PEOPLE IN LOW-LYING COASTAL AREAS SHOULD BE ALERT TO
INSTRUCTIONS FROM THEIR LOCAL EMERGENCY OFFICIALS. EVACUATIONS
ARE ONLY ORDERED BY EMERGENCY RESPONSE AGENCIES.
- IF IN A TSUNAMI WARNING COASTAL AREA MOVE INLAND TO HIGHER
GROUND.
PRELIMINARY EARTHQUAKE PARAMETERS
MAGNITUDE - 7.7
TIME - 1904 AKDT OCT 27 2012
2004 PDT OCT 27 2012
0304 UTC OCT 28 2012
LOCATION - 52.9 NORTH 131.9 WEST
25 MILES/40 KM S OF SANDSPIT BRITISH COLUMBIA
385 MILES/620 KM SE OF JUNEAU ALASKA
DEPTH - 12 MILES/19 KM
TSUNAMI WARNINGS MEAN THAT A TSUNAMI WITH SIGNIFICANT WIDESPREAD
INUNDATION IS IMMINENT... EXPECTED OR OCURRING. WARNINGS INDICATE
THAT WIDESPREAD DANGEROUS COASTAL FLOODING ACCOMPANIED BY POWERFUL
CURRENTS IS POSSIBLE AND MAY CONTINUE FOR SEVERAL HOURS AFTER THE
INITIAL WAVE ARRIVAL.
PACIFIC COASTAL REGIONS OUTSIDE CALIFORNIA/ OREGON/ WASHINGTON/
BRITISH COLUMBIA AND ALASKA SHOULD REFER TO THE PACIFIC TSUNAMI
WARNING CENTER MESSAGES FOR INFORMATION ON THIS EVENT AT
PTWC.WEATHER.GOV.
THIS MESSAGE WILL BE UPDATED IN 30 MINUTES OR SOONER IF
THE SITUATION WARRANTS. THE TSUNAMI MESSAGE WILL REMAIN IN EFFECT
UNTIL FURTHER NOTICE. REFER TO THE INTERNET SITE
WCATWC.ARH.NOAA.GOV FOR MORE INFORMATION.
BCZ220-210-922-912-921-911-110-AKZ026>029-280510-
/O.CON.PAAQ.TS.W.0024.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING THE NORTH TIP OF
VANCOUVER ISLAND BRITISH COLUMBIA TO CAPE DECISION
ALASKA/LOCATED 85 MILES SE OF SITKA/
910 PM PDT SAT OCT 27 2012
...THE TSUNAMI WARNING CONTINUES IN EFFECT FOR THE COASTAL
AREAS OF BRITISH COLUMBIA AND ALASKA FROM THE NORTH TIP OF
VANCOUVER ISLAND BRITISH COLUMBIA TO CAPE DECISION
ALASKA/LOCATED 85 MILES SE OF SITKA/...
PEOPLE IN TSUNAMI WARNING COASTAL AREAS SHOULD MOVE INLAND TO
HIGHER GROUND.
TSUNAMI WARNINGS MEAN THAT A TSUNAMI WITH SIGNIFICANT WIDESPREAD
INUNDATION IS IMMINENT... EXPECTED OR OCCURRING. TSUNAMIS ARE A
SERIES OF WAVES POTENTIALLY DANGEROUS SEVERAL HOURS AFTER INITIAL
ARRIVAL TIME.
ESTIMATED TIMES OF INITIAL WAVE ARRIVAL FOR SELECTED
SITES IN THE WARNING ARE PROVIDED BELOW.
LANGARA 2116 PDT OCT 27 CRAIG 2110 AKDT OCT 27
FOR ARRIVAL TIMES AT ADDITIONAL LOCATIONS SEE
WCATWC.ARH.NOAA.GOV
The link linked says no current warning beyond this:
WEHW42 PHEB 280345
TIBHWX
HIZ001>003-005>009-012>014-016>021-023>026-280545-
TSUNAMI INFORMATION STATEMENT NUMBER 2
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
545 PM HST SAT OCT 27 2012
TO - CIVIL DEFENSE IN THE STATE OF HAWAII
SUBJECT - TSUNAMI INFORMATION STATEMENT
THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED.
AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
ORIGIN TIME - 0504 PM HST 27 OCT 2012
COORDINATES - 52.9 NORTH 131.9 WEST
LOCATION - QUEEN CHARLOTTE ISLANDS REGION
MAGNITUDE - 7.7 MOMENT
EVALUATION
THE WEST COAST AND ALASKA TSUNAMI WARNING CENTER HAS ISSUED A
REGIONAL TSUNAMI WARNING AND/OR WATCH AND/OR ADVISORY FOR OTHER
PARTS OF THE PACIFIC LOCATED CLOSER TO THE EARTHQUAKE. BASED ON
ALL AVAILABLE DATA THERE IS NO DESTRUCTIVE TSUNAMI THREAT TO
HAWAII.
HOWEVER... SOME COASTAL AREAS IN HAWAII COULD EXPERIENCE SMALL
NON-DESTRUCTIVE SEA LEVEL CHANGES AND STRONG OR UNUSUAL CURRENTS
LASTING UP TO SEVERAL HOURS. THE ESTIMATED TIME SUCH EFFECTS
MIGHT BEGIN IS
1028 PM HST SAT 27 OCT 2012
THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE RECEIVED.
kestrel91316
(51,666 posts)"...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
CALIFORNIA - OREGON - WASHINGTON AND BRITISH COLUMBIA FROM
THE CALIFORNIA-MEXICO BORDER TO THE NORTH TIP OF VANCOUVER
ISLAND BRITISH COLUMBIA..."
The New Hampshire mention is clearly utter nonsense. Somebody entered something wrong on the big computer. New Hampshire is on the EAST coast and tsunamis cannot jump across continents.
uppityperson
(115,677 posts)THE TSUNAMI WARNING CONTINUES IN EFFECT FOR THE COASTAL
AREAS OF BRITISH COLUMBIA AND ALASKA FROM THE NORTH TIP OF
VANCOUVER ISLAND BRITISH COLUMBIA TO CAPE DECISION
ALASKA/LOCATED 85 MILES SE OF SITKA/...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
CALIFORNIA - OREGON - WASHINGTON AND BRITISH COLUMBIA FROM
THE CALIFORNIA-MEXICO BORDER TO THE NORTH TIP OF VANCOUVER
ISLAND BRITISH COLUMBIA...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
ALASKA FROM CAPE DECISION ALASKA/LOCATED 85 MILES SE OF
SITKA/ TO ATTU ALASKA...
See, the warning, 1st paragraph, of a possible tsunami is for the coast of BC-AK. The whole message is info for the west coast. But no warning down here. At least not in the thing above I just copy/pasted from NWS/NOAA.
uppityperson
(115,677 posts)TSUNAMI MESSAGE NUMBER 6
NWS WEST COAST/ALASKA TSUNAMI WARNING CENTER PALMER AK
1044 PM PDT SAT OCT 27 2012
THE ADVISORY HAS BEEN EXPANDED TO INCLUDE NORTHERN CALIFORNIA AND
SOUTHERN OREGON.
...THE TSUNAMI WARNING CONTINUES IN EFFECT FOR THE COASTAL
AREAS OF BRITISH COLUMBIA AND ALASKA FROM THE NORTH TIP OF
VANCOUVER ISLAND BRITISH COLUMBIA TO CAPE DECISION
ALASKA/LOCATED 85 MILES SE OF SITKA/...
...THE TSUNAMI ADVISORY IS MODIFIED TO INCLUDE THE COASTAL
AREAS OF CALIFORNIA AND OREGON FROM GUALALA POINT
CALIFORNIA/LOCATED 80 MILES NW OF SAN FRANCISCO/ TO
DOUGLAS-LANE COUNTY LINE OREGON/10 MILES SW OF FLORENCE/...
...THE TSUNAMI ADVISORY CONTINUES IN EFFECT FOR THE COASTAL
AREAS OF BRITISH COLUMBIA FROM THE WASHINGTON-BRITISH
COLUMBIA BORDER TO THE NORTH TIP OF VANCOUVER ISLAND
BRITISH COLUMBIA...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
CALIFORNIA FROM THE CALIFORNIA-MEXICO BORDER TO GUALALA
POINT CALIFORNIA/LOCATED 80 MILES NW OF SAN FRANCISCO/...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
OREGON AND WASHINGTON FROM DOUGLAS-LANE COUNTY LINE
OREGON/10 MILES SW OF FLORENCE/ TO THE WASHINGTON-BRITISH
COLUMBIA BORDER...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
ALASKA FROM CAPE DECISION ALASKA/LOCATED 85 MILES SE OF
SITKA/ TO ATTU ALASKA...
RECOMMENDED ACTIONS
A TSUNAMI HAS BEEN GENERATED WHICH IS EXPECTED TO CAUSE DAMAGE
TO THE WARNING AND/OR ADVISORY REGIONS LISTED IN THE HEADLINE.
PEOPLE IN LOW-LYING COASTAL AREAS SHOULD BE ALERT TO
INSTRUCTIONS FROM THEIR LOCAL EMERGENCY OFFICIALS. EVACUATIONS
ARE ONLY ORDERED BY EMERGENCY RESPONSE AGENCIES.
- IF IN A TSUNAMI WARNING COASTAL AREA MOVE INLAND TO
HIGHER GROUND.
- IF IN A TSUNAMI ADVISORY COASTAL AREA MOVE OUT OF
THE WATER... OFF THE BEACH AND OUT OF HARBORS AND MARINAS.
MEASUREMENTS OR REPORTS OF TSUNAMI ACTIVITY
LOCATION LAT LON TIME AMPL
------------------------ ----- ------ ------- -----------
DART46419PT NW SEATTLE 48.8N 129.6W 0345UTC 00.2FT/00.07M
CRAIG AK 55.5N 133.1W 0427UTC 00.4FT/00.11M
PORT ALEXANDER AK 56.2N 134.6W 0410UTC 00.3FT/00.08M
WINTER HARBOUR BC 50.7N 128.3W 0402UTC 00.5FT/00.15M
SITKA AK 57.1N 135.3W 0424UTC 00.3FT/00.08M
TIME - TIME OF MEASUREMENT
AMPL - TSUNAMI AMPLITUDES ARE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS/M/ AND FEET/FT/.
PRELIMINARY EARTHQUAKE PARAMETERS
MAGNITUDE - 7.7
TIME - 1904 AKDT OCT 27 2012
2004 PDT OCT 27 2012
0304 UTC OCT 28 2012
LOCATION - 52.9 NORTH 131.9 WEST
25 MILES/40 KM S OF SANDSPIT BRITISH COLUMBIA
390 MILES/628 KM SE OF JUNEAU ALASKA
DEPTH - 12 MILES/19 KM
TSUNAMI WARNINGS MEAN THAT A TSUNAMI WITH SIGNIFICANT WIDESPREAD
INUNDATION IS IMMINENT... EXPECTED OR OCURRING. WARNINGS INDICATE
THAT WIDESPREAD DANGEROUS COASTAL FLOODING ACCOMPANIED BY POWERFUL
CURRENTS IS POSSIBLE AND MAY CONTINUE FOR SEVERAL HOURS AFTER THE
INITIAL WAVE ARRIVAL.
TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING
STRONG CURRENTS OR WAVES DANGEROUS TO PEOPLE IN OR VERY NEAR THE
WATER IS EXPECTED. SIGNIFICANT WIDESPREAD INUNDATION
IS NOT EXPECTED FOR AREAS UNDER AN ADVISORY. CURRENTS MAY BE
HAZARDOUS TO SWIMMERS... BOATS... AND COASTAL STRUCTURES AND MAY
CONTINUE FOR SEVERAL HOURS AFTER THE INITIAL WAVE ARRIVAL.
PACIFIC COASTAL REGIONS OUTSIDE CALIFORNIA/ OREGON/ WASHINGTON/
BRITISH COLUMBIA AND ALASKA SHOULD REFER TO THE PACIFIC TSUNAMI
WARNING CENTER MESSAGES FOR INFORMATION ON THIS EVENT AT
PTWC.WEATHER.GOV.
THIS MESSAGE WILL BE UPDATED IN 30 MINUTES OR SOONER IF
THE SITUATION WARRANTS. THE TSUNAMI MESSAGE WILL REMAIN IN EFFECT
UNTIL FURTHER NOTICE. REFER TO THE INTERNET SITE
WCATWC.ARH.NOAA.GOV FOR MORE INFORMATION.
BCZ220-210-922-912-921-911-110-AKZ026>029-280644-
/O.CON.PAAQ.TS.W.0024.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING THE NORTH TIP OF
VANCOUVER ISLAND BRITISH COLUMBIA TO CAPE DECISION
ALASKA/LOCATED 85 MILES SE OF SITKA/
1044 PM PDT SAT OCT 27 2012
...THE TSUNAMI WARNING CONTINUES IN EFFECT FOR THE COASTAL
AREAS OF BRITISH COLUMBIA AND ALASKA FROM THE NORTH TIP OF
VANCOUVER ISLAND BRITISH COLUMBIA TO CAPE DECISION
ALASKA/LOCATED 85 MILES SE OF SITKA/...
PEOPLE IN TSUNAMI WARNING COASTAL AREAS SHOULD MOVE INLAND TO
HIGHER GROUND.
TSUNAMI WARNINGS MEAN THAT A TSUNAMI WITH SIGNIFICANT WIDESPREAD
INUNDATION IS IMMINENT... EXPECTED OR OCCURRING. TSUNAMIS ARE A
SERIES OF WAVES POTENTIALLY DANGEROUS SEVERAL HOURS AFTER INITIAL
ARRIVAL TIME.
ESTIMATED TIMES OF INITIAL WAVE ARRIVAL FOR SELECTED
SITES IN THE WARNING ARE PROVIDED BELOW.
CRAIG 2110 AKDT OCT 27
FOR ARRIVAL TIMES AT ADDITIONAL LOCATIONS SEE
WCATWC.ARH.NOAA.GOV
$$
CAZ002-001-ORZ021-022-280644-
/O.EXA.PAAQ.TS.Y.0024.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING GUALALA POINT
CALIFORNIA/LOCATED 80 MILES NW OF SAN FRANCISCO/ TO
DOUGLAS-LANE COUNTY LINE OREGON/10 MILES SW OF FLORENCE/
1044 PM PDT SAT OCT 27 2012
...THE TSUNAMI ADVISORY IS MODIFIED TO INCLUDE THE COASTAL
AREAS OF CALIFORNIA AND OREGON FROM GUALALA POINT
CALIFORNIA/LOCATED 80 MILES NW OF SAN FRANCISCO/ TO
DOUGLAS-LANE COUNTY LINE OREGON/10 MILES SW OF FLORENCE/...
PEOPLE IN TSUNAMI ADVISORY COASTAL AREAS SHOULD MOVE OUT OF
THE WATER... OFF THE BEACH AND OUT OF HARBORS AND MARINAS.
TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING
STRONG CURRENTS OR WAVES DANGEROUS TO PEOPLE IN OR VERY NEAR
WATER IS IMMINENT... EXPECTED OR OCCURRING. SIGNIFICANT WIDESPREAD
INUNDATION IS NOT EXPECTED FOR AREAS IN AN ADVISORY. TSUNAMIS ARE
A SERIES OF WAVES POTENTIALLY DANGEROUS SEVERAL HOURS AFTER INITIAL
ARRIVAL TIME. ESTIMATED TIMES OF INITIAL WAVE ARRIVAL FOR SELECTED
SITES IN THE ADVISORY ARE PROVIDED BELOW.
CHARLESTON 2236 PDT OCT 27 CRESCENT CITY 2253 PDT OCT 27
FOR ARRIVAL TIMES AT ADDITIONAL LOCATIONS SEE
WCATWC.ARH.NOAA.GOV
$$
BCZ130-230-250-260-280-160-142-141-150-121-122-280644-
/O.CON.PAAQ.TS.Y.0024.000000T0000Z-000000T0000Z/
COASTAL AREAS BETWEEN AND INCLUDING THE WASHINGTON-BRITISH
COLUMBIA BORDER TO THE NORTH TIP OF VANCOUVER ISLAND
BRITISH COLUMBIA
1044 PM PDT SAT OCT 27 2012
...THE TSUNAMI ADVISORY CONTINUES IN EFFECT FOR THE COASTAL
AREAS OF BRITISH COLUMBIA FROM THE WASHINGTON-BRITISH
COLUMBIA BORDER TO THE NORTH TIP OF VANCOUVER ISLAND
BRITISH COLUMBIA...
PEOPLE IN TSUNAMI ADVISORY COASTAL AREAS SHOULD MOVE OUT OF
THE WATER... OFF THE BEACH AND OUT OF HARBORS AND MARINAS.
TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING
STRONG CURRENTS OR WAVES DANGEROUS TO PEOPLE IN OR VERY NEAR
WATER IS IMMINENT... EXPECTED OR OCCURRING. SIGNIFICANT WIDESPREAD
INUNDATION IS NOT EXPECTED FOR AREAS IN AN ADVISORY. TSUNAMIS ARE
A SERIES OF WAVES POTENTIALLY DANGEROUS SEVERAL HOURS AFTER INITIAL
ARRIVAL TIME. ESTIMATED TIMES OF INITIAL WAVE ARRIVAL FOR SELECTED
SITES IN THE ADVISORY ARE PROVIDED BELOW.
TOFINO 2209 PDT OCT 27
FOR ARRIVAL TIMES AT ADDITIONAL LOCATIONS SEE
WCATWC.ARH.NOAA.GOV
valerief
(53,235 posts)uppityperson
(115,677 posts)PatrynXX
(5,668 posts)I'd be more worried about a tsunami than quake damage. but whats interesting on the chart is in 8-9 hours it'll hit the um the right side of japan . They don't need that if it's still leaking. X_X
Lydia Leftcoast
(48,217 posts)One of the largest earthquakes in recorded history was in Alaska in 1964, and in the year 1700, a massive earthquake in the Oregon-Washington region triggered a huge tsunami in Japan, which was especially destructive, since there was absolutely no warning.
During the years I lived in Oregon, I experienced a 5.5 centered in the northern Willamette Valley and a 6.something centered in Seattle.
Raster
(20,998 posts)...the Pacific Northwest can be.
The 1700 quake was MASSIVE. The shaking probably continued for FOUR TO FIVE MINUTES because of the type of fault and the underlying infrastructure.
starroute
(12,977 posts)And looking at the shake map, it seems like it was only felt pretty locally, despite being so strong.
PatrynXX
(5,668 posts)thing I did was go to the vancouver sun.
An earthquake registered at 7.7 has occurred in the Haida Gwaii Region, Earthquakes Canada reports. A tsunami warning is in effect for coastal areas of BC and Alaska from the northern tip of Vancouver Island. The quake was felt across much of north-central BC, including Haida Gwaii, Prince Rupert, Quesnel, and Houston. There have been no reports of damage at this time.
not exactly going to rely on our news. rather go to the source
http://www.vancouversun.com/news/earthquake+hits+Haida+Gwaii+Region/7459506/story.html
KT2000
(20,585 posts)I should have felt that but didn't. I live across from Victoria BC.
We had a trial run of our tsunami evac system last week and one of the loudspeakers is a block away. So far all is quiet.
Yikes!
u4ic
(17,101 posts)Didn't feel a thing, either.
KT2000
(20,585 posts)On a clear day I can see your lovely city across the Strait from my living room.
u4ic
(17,101 posts)Same here, I can see the US from my balcony - Port Angeles to be exact. I was in your neck of the woods a month and a half ago - lovely area, great people!
PearliePoo2
(7,768 posts)I live on San Juan Island, I didn't feel a thing. I can also see the lights of beautiful Victoria across Haro Straight!
dixiegrrrrl
(60,010 posts)I lived on Whidbey Island for almost 10 years. All of the San Juan Islands are wonderful, I envy you.
PearliePoo2
(7,768 posts)NAS Whidbey?
Where are you living now? dixiegrrrl implies "South".
dixiegrrrrl
(60,010 posts)Had to move to find a job during the 1986 recession, which landed me here in Ala.
Part of me is forever up there with the towering firs, looming mountains, and endless clouds.
My new roots are deep and abiding down here, I don't see myself ever leaving.
PearliePoo2
(7,768 posts)Left Friday Harbor to drive the length of Whidbey every other day in the spring of '94 to work a WSF ferry job that started at Clinton. And you're right...cedar trees, pastures, beaches, oysters/mussels and the view of the stunning Olympic and Cascade Mountains is stuff of picture postcard beauty.
I've met quite a few people from the San Juan Islands this summer...hmmmm...been to Victoria lately?
PearliePoo2
(7,768 posts)Are you on the Peninsula by Port Angeles? I'm on San Juan Island!
uppityperson
(115,677 posts)NWS says you got 0.4 ft wave last night.
appleannie1
(5,068 posts)BULLETIN
TSUNAMI MESSAGE NUMBER 2
NWS WEST COAST/ALASKA TSUNAMI WARNING CENTER PALMER AK
834 PM PDT SAT OCT 27 2012
THE MAGNITUDE IS UPDATED TO 7.7. THE WARNING ZONE REMAINS THE
SAME.
...THE TSUNAMI WARNING CONTINUES IN EFFECT FOR THE COASTAL
AREAS OF BRITISH COLUMBIA AND ALASKA FROM THE NORTH TIP OF
VANCOUVER ISLAND BRITISH COLUMBIA TO CAPE DECISION
ALASKA/LOCATED 85 MILES SE OF SITKA/...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
CALIFORNIA - OREGON - WASHINGTON AND BRITISH COLUMBIA FROM
THE CALIFORNIA-MEXICO BORDER TO THE NORTH TIP OF VANCOUVER
ISLAND BRITISH COLUMBIA...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
ALASKA FROM CAPE DECISION ALASKA/LOCATED 85 MILES SE OF
SITKA/ TO ATTU ALASKA...
RECOMMENDED ACTIONS
PEOPLE IN LOW-LYING COASTAL AREAS SHOULD BE ALERT TO
INSTRUCTIONS FROM THEIR LOCAL EMERGENCY OFFICIALS. EVACUATIONS
ARE ONLY ORDERED BY EMERGENCY RESPONSE AGENCIES.
- IF IN A TSUNAMI WARNING COASTAL AREA MOVE INLAND TO HIGHER
GROUND.
PRELIMINARY EARTHQUAKE PARAMETERS
MAGNITUDE - 7.7
TIME - 1904 AKDT OCT 27 2012
2004 PDT OCT 27 2012
0304 UTC OCT 28 2012
LOCATION - 52.9 NORTH 131.9 WEST
25 MILES/40 KM S OF SANDSPIT BRITISH COLUMBIA
390 MILES/628 KM SE OF JUNEAU ALASKA
DEPTH - 12 MILES/19 KM
TSUNAMI WARNINGS MEAN THAT A TSUNAMI WITH SIGNIFICANT WIDESPREAD
INUNDATION IS IMMINENT... EXPECTED OR OCURRING. WARNINGS INDICATE
THAT WIDESPREAD DANGEROUS COASTAL FLOODING ACCOMPANIED BY POWERFUL
CURRENTS IS POSSIBLE AND MAY CONTINUE FOR SEVERAL HOURS AFTER THE
INITIAL WAVE ARRIVAL.
PACIFIC COASTAL REGIONS OUTSIDE CALIFORNIA/ OREGON/ WASHINGTON/
BRITISH COLUMBIA AND ALASKA SHOULD REFER TO THE PACIFIC TSUNAMI
WARNING CENTER MESSAGES FOR INFORMATION ON THIS EVENT AT
PTWC.WEATHER.GOV.
THIS MESSAGE WILL BE UPDATED IN 30 MINUTES OR SOONER IF
THE SITUATION WARRANTS. THE TSUNAMI MESSAGE WILL REMAIN IN EFFECT
UNTIL FURTHER NOTICE. REFER TO THE INTERNET SITE
WCATWC.ARH.NOAA.GOV FOR MORE INFORMATION.
bananas
(27,509 posts)Quake with a magnitude of 7.7 strikes off Canada coast
Editor's Note: A 7.7-magnitude quake struck off the coast of Queen Charlotte Islands in Canada late Saturday, triggering a tsunami warning. No reports of major damage has yet emerged. Here are the latest developments:
Update 12 a.m. A 5.8-magnitude aftershock was felt 96 miles south of Masset, Canada, according to the USGS.
Update 11:56 p.m. More from Englehard:
He said he has not seen any major damage in his town; just a broken window. The shaking lasted for a while, he said.
Update 11:52 p.m. Fritz Engelhard, who lives in Masset, British Columbia, said he felt the tremor even though his town is 86 miles from the epicenter. Residents have been asked to seek higher ground because of the tsunami warning, he said.
Update 11:47 p.m. The tweets started populating the Twitter timeline as soon as residents felt the tremor.
I'm still shaking. earthquake.usgs.gov/earthquakes/re
Monika Clifton (@NorthCoastGal) October 28, 2012
Update 11:46 p.m. The tsunami warning is in effect for the coastal areas of British Columbia and Alaska - from the north tip of Vancouver Island, British Columbia, to Cape Decision, Alaska.
Such a warning means that all residents in those coastal regions should move immediately inland to higher ground.
Update 11:43 p.m. The Alaska Tsunami Warning Center has issued a tsunami warning.
Posted at 11:40 p.m. A 7.7-magnitude quake struck off the coast of Queen Charlotte Islands in Canada late Saturday, the U.S. Geological Survey said. The quake had a depth of 10.9 miles.
Post by: CNN's Chandler Friedman
Filed under: Canada Earthquake Latest news World
suffragette
(12,232 posts)The quake, measured at 7.1 on the Richter Scale, had its epicentre approximately 25 miles south of Sandspit on Haida Gwaii
"It wasn't like others before," said one Terrace resident. "Sometimes when a big truck rumbles by the house will shake but this was way more, the house was visibly moving as if you were in a boat."
~~~
The boundary between the Pacific and North American plates runs underwater along the west coast of Haida Gwaii, and is B.C.'s equivalent of the San Andreas Fault in California.
icymist
(15,888 posts)Up2Late
(17,797 posts)....on that fault. Just depends on what type of quake it was, i.e. a slip quake or a subduction quake. A slip quake does not usually create a Sunami, a subduction quake does.
I'll check what it says at USGS.
PatrynXX
(5,668 posts)bit overloaded at the moment and I'd rather let those on the west coast get there.
Up2Late
(17,797 posts)And it looks like most of the shaking was felt on the southern part of the Island, so my guess would be not much Sunami danger with this one, but that's just a guess.
Hissyspit
(45,788 posts)@AntDeRosa: Latest west coast/Alaska bulletin: SMALL TSUNAMI HAS BEEN RECORDED ON A DEEP OCEAN PRESSURE SENSOR http://1.usa.gov/QNdsm0
Up2Late
(17,797 posts)Earthquake Details
This event has been reviewed by a seismologist.
Magnitude 7.7
Date-Time
Sunday, October 28, 2012 at 03:04:10 UTC
Saturday, October 27, 2012 at 08:04:10 PM at epicenter
Time of Earthquake in other Time Zones
Location 52.769°N, 131.927°W
Depth 17.5 km (10.9 miles)
Region QUEEN CHARLOTTE ISLANDS REGION
Distances 139 km (86 miles) S of Masset, Canada
202 km (125 miles) SSW of Prince Rupert, Canada
293 km (182 miles) SW of Terrace, Canada
556 km (345 miles) NW of Campbell River, Canada
Location Uncertainty horizontal +/- 14 km (8.7 miles); depth +/- 4 km (2.5 miles)
Parameters NST=716, Nph=716, Dmin=267.2 km, Rmss=0.95 sec, Gp= 58°,
M-type=regional moment magnitude (Mw), Version=A
Source
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID usb000df7n
http://earthquake.usgs.gov/earthquakes/dyfi/events/us/b000df7n/us/index.html
Report if you felt it at the link below:
http://earthquake.usgs.gov/earthquakes/dyfi/events/us/b000df7n/us/form.en.disabled.html
Locut0s
(6,154 posts)No one felt anything in Vancouver. This quake occurred in the Haida Gwaii region (AKA Queen Charlotte Islands) hundreds of KM to the north of here. No one felt anything in Vancouver. A Tsunami warning was issued for coastal regions but again mostly in the Queen Charlotte region. That area is very sparsely populated luckily and so far there are no reports of serious damage or injuries.
I'm more concerned about what it may mean geologically for the future. I wonder if this will put extra stress on the Cascadia fault. When we get our forecasted 8 or 9 megaquake, it's coming some day, that's where it will happen and that's much closer to home here.
uppityperson
(115,677 posts)Someday we will be hit, hard.
Up2Late
(17,797 posts)But not by much. I think the part that just slipped was on the same fault, but it hit north of the Juan de Fuca Plate, which is the really dangerous one, because it's part of the Cascadia subduction zone.
Looks like this one hit between the Pacific Plate and the North American Plate, which I'm pretty sure is a slip type fault, which I don't think is quite as dangerous.
Hissyspit
(45,788 posts)CBC News Alerts @CBCAlerts
Tofino residents being evacuated in wake of tsunami warning after 7.7 quake, aftershocks on Haida Gwaii. Leave low-lying coastal areas.
Hissyspit
(45,788 posts)Michael van Poppel @mpoppel
Pacific Tsunami Warning Center: A tsunami has been generated that could cause damage along coastlines in Hawaii - http://tinyurl.com/97o4j3b
Up2Late
(17,797 posts)He said it could be 7 feet high when it gets to Hawaii!
What would the E.T.A. be for it, any idea?
bananas
(27,509 posts)000
WEAK51 PAAQ 280544
TSUAK1
BULLETIN
PUBLIC TSUNAMI MESSAGE NUMBER 6
NWS WEST COAST/ALASKA TSUNAMI WARNING CENTER PALMER AK
1044 PM PDT SAT OCT 27 2012
THE ADVISORY HAS BEEN EXPANDED TO INCLUDE NORTHERN CALIFORNIA AND
SOUTHERN OREGON.
...THE TSUNAMI WARNING CONTINUES IN EFFECT FOR THE COASTAL
AREAS OF BRITISH COLUMBIA AND ALASKA FROM THE NORTH TIP OF
VANCOUVER ISLAND BRITISH COLUMBIA TO CAPE DECISION
ALASKA/LOCATED 85 MILES SE OF SITKA/...
...THE TSUNAMI ADVISORY IS MODIFIED TO INCLUDE THE COASTAL
AREAS OF CALIFORNIA AND OREGON FROM GUALALA POINT
CALIFORNIA/LOCATED 80 MILES NW OF SAN FRANCISCO/ TO
DOUGLAS-LANE COUNTY LINE OREGON/10 MILES SW OF FLORENCE/...
...THE TSUNAMI ADVISORY CONTINUES IN EFFECT FOR THE COASTAL
AREAS OF BRITISH COLUMBIA FROM THE WASHINGTON-BRITISH
COLUMBIA BORDER TO THE NORTH TIP OF VANCOUVER ISLAND
BRITISH COLUMBIA...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
CALIFORNIA FROM THE CALIFORNIA-MEXICO BORDER TO GUALALA
POINT CALIFORNIA/LOCATED 80 MILES NW OF SAN FRANCISCO/...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
OREGON AND WASHINGTON FROM DOUGLAS-LANE COUNTY LINE
OREGON/10 MILES SW OF FLORENCE/ TO THE WASHINGTON-BRITISH
COLUMBIA BORDER...
...THIS MESSAGE IS INFORMATION ONLY FOR COASTAL AREAS OF
ALASKA FROM CAPE DECISION ALASKA/LOCATED 85 MILES SE OF
SITKA/ TO ATTU ALASKA...
A TSUNAMI WARNING MEANS... ALL COASTAL RESIDENTS IN THE WARNING
AREA WHO ARE NEAR THE BEACH OR IN LOW-LYING REGIONS SHOULD MOVE
IMMEDIATELY INLAND TO HIGHER GROUND AND AWAY FROM ALL HARBORS AND
INLETS INCLUDING THOSE SHELTERED DIRECTLY FROM THE SEA. THOSE
FEELING THE EARTH SHAKE... SEEING UNUSUAL WAVE ACTION... OR THE
WATER LEVEL RISING OR RECEDING MAY HAVE ONLY A FEW MINUTES BEFORE
THE TSUNAMI ARRIVAL AND SHOULD MOVE IMMEDIATELY. HOMES AND
SMALL BUILDINGS ARE NOT DESIGNED TO WITHSTAND TSUNAMI IMPACTS.
DO NOT STAY IN THESE STRUCTURES.
ALL RESIDENTS WITHIN THE WARNED AREA SHOULD BE ALERT FOR
INSTRUCTIONS BROADCAST FROM THEIR LOCAL CIVIL AUTHORITIES.
A TSUNAMI HAS BEEN RECORDED.
A TSUNAMI ADVISORY MEANS THAT A TSUNAMI CAPABLE OF PRODUCING
STRONG CURRENTS OR WAVES DANGEROUS TO PEOPLE IN OR VERY NEAR
THE WATER IS EXPECTED. SIGNIFICANT WIDESPREAD INUNDATION
IS NOT EXPECTED FOR AREAS UNDER AN ADVISORY. CURRENTS
MAY BE HAZARDOUS TO SWIMMERS... BOATS... AND COASTAL
STRUCTURES AND MAY CONTINUE FOR SEVERAL HOURS AFTER THE
INITIAL WAVE ARRIVAL.
AT 804 PM PACIFIC DAYLIGHT TIME ON OCTOBER 27 AN EARTHQUAKE WITH
PRELIMINARY MAGNITUDE 7.7 OCCURRED 25 MILES/40 KM SOUTH OF
SANDSPIT BRITISH COLUMBIA.
THIS EARTHQUAKE HAS GENERATED A TSUNAMI WHICH COULD CAUSE DAMAGE
TO REGIONS IN A WARNING OR ADVISORY.
ESTIMATED TSUNAMI ARRIVAL TIMES AND MAPS ALONG WITH SAFETY RULES
AND OTHER INFORMATION CAN BE FOUND ON THE WEB SITE
WCATWC.ARH.NOAA.GOV.
MEASUREMENTS OR REPORTS OF TSUNAMI ACTIVITY
LOCATION LAT LON TIME AMPL
------------------------ ----- ------ ------- -----------
DART46419PT NW SEATTLE 48.8N 129.6W 0345UTC 00.2FT/00.07M
CRAIG AK 55.5N 133.1W 0427UTC 00.4FT/00.11M
PORT ALEXANDER AK 56.2N 134.6W 0410UTC 00.3FT/00.08M
WINTER HARBOUR BC 50.7N 128.3W 0402UTC 00.5FT/00.15M
SITKA AK 57.1N 135.3W 0424UTC 00.3FT/00.08M
TIME - TIME OF MEASUREMENT
AMPL - TSUNAMI AMPLITUDES ARE MEASURED RELATIVE TO NORMAL SEA LEVEL.
IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.
VALUES ARE GIVEN IN BOTH METERS/M/ AND FEET/FT/.
TSUNAMIS CAN BE DANGEROUS WAVES THAT ARE NOT SURVIVABLE. WAVE
HEIGHTS ARE AMPLIFIED BY IRREGULAR SHORELINE AND ARE DIFFICULT TO
FORECAST. TSUNAMIS OFTEN APPEAR AS A STRONG SURGE AND MAY BE
PRECEDED BY A RECEDING WATER LEVEL. MARINERS IN WATER DEEPER
THAN 600 FEET SHOULD NOT BE AFFECTED BY A TSUNAMI. WAVE HEIGHTS
WILL INCREASE RAPIDLY AS WATER SHALLOWS. TSUNAMIS ARE A SERIES OF
OCEAN WAVES WHICH CAN BE DANGEROUS FOR SEVERAL HOURS AFTER THE
INITIAL WAVE ARRIVAL. DO NOT RETURN TO EVACUATED AREAS UNTIL AN
ALL CLEAR IS GIVEN BY LOCAL CIVIL AUTHORITIES.
PACIFIC COASTAL REGIONS OUTSIDE CALIFORNIA/ OREGON/ WASHINGTON/
BRITISH COLUMBIA AND ALASKA SHOULD REFER TO THE PACIFIC TSUNAMI
WARNING CENTER MESSAGES FOR INFORMATION ON THIS EVENT AT
PTWC.WEATHER.GOV.
THIS MESSAGE WILL BE UPDATED IN 30 MINUTES OR SOONER IF
THE SITUATION WARRANTS. THE TSUNAMI MESSAGE WILL REMAIN
IN EFFECT UNTIL FURTHER NOTICE. FOR FURTHER INFORMATION STAY TUNED
TO NOAA WEATHER RADIO... YOUR LOCAL TV OR RADIO STATIONS... OR SEE
THE WEB SITE WCATWC.ARH.NOAA.GOV.
$$
uppityperson
(115,677 posts)Locut0s
(6,154 posts)Just saw this on CNN. They said that Hawaii has the most to be concerned about, they have already evacuated or are evacuating some coastal areas. They HAVE measured a tsunami in the ocean, so it's real not just a warning. However it seems that the coastal pacific region has little to worry about from what they said.
Up2Late
(17,797 posts)...most of the energy was generated directly toward Hawaii, not much to the north and south of the quake.
He said it could be 7 feet high when it gets to Hawaii, but only about 30 cm in Alaska and Vancouver Island.
He said it was like dropping a log into the water, big waves radiate from the middle of the log and small waves from the ends.
So yeah, if you are in Hawaii, get off the beach and get to high ground, NOW!
arikara
(5,562 posts)and still have friends on Haida Gwai. It always has earthquakes, their seismograph is always active although usually too small to be felt. One stretch of the highway at St Mary's Spring which is directly over the fault line the road is always buckled and impossible to keep paved.
Everyone I know there has reported in and ok, the quake was actually felt more in areas of the interior of BC.
Locut0s
(6,154 posts)I live in Vancouver and I'm ashamed to admit I've never seen a lot of BC, especially farther north.
YOHABLO
(7,358 posts)stuck in the middle with you. What is Pat Robertson saying .. ''it's the queers.''
Tx4obama
(36,974 posts)lunatica
(53,410 posts)Odin2005
(53,521 posts)neversaydie
(69 posts)I'm at 12:30 California time; been looking at the USGS map and in just the last hour there have been three more! 6.3, 5.4 and 5.2.
bobthedrummer
(26,083 posts)n/t