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Earthquake & Poss Tsunami Alert!! Tsunami warning issued after 7.7 earthquake strikes British Columbia Published October 27, 2012 Associated Press The U.S. Coast Guard is warning people in far southern Alaska to take precautions after a tsunami warning was issued for coastal areas of Alaska and the Pacific Northwest. The warning was sparked by a strong earthquake Saturday night that shook off the west coast of Canada. The U.S. Geological Survey said the 7.7-magnitude earthquake hit in the Queen Charlotte Islands area, followed by a 5.8-magnitude aftershock several minutes later. The National Weather Service issued a warning for coastal areas of southern Alaska including the small communities of Craig and Sitka. The U.S. Coast Guard in Alaska said it's trying to warn everyone with a boat on the water to prepare for a potential tsunami. Lt. Bernard Auth of the Juneau Command Center said the Coast Guard was also working with local authorities to alert people in coastal towns to take precautions. Lucy Jones, a USGS seismologist, said the earthquake likely would not generate a large tsunami. "This isn't that big of an earthquake on tsunami scales," she said. "The really big tsunamis are usually up in the high 8s and 9s." She said the earthquake occurred along a "fairly long" fault - "a plate 200 kilometers long" in a subduction zone, where one plate slips underneath another. Such quakes lift the sea floor and tend to cause tsunamis, she said. **Thanks Wiggly** Read more: http://www.foxnews.com/world/2012/10...#ixzz2AZEDLti2 |
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Re: Earthquake & Poss Tsunami Alert!! ![]() |
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Re: Earthquake & Poss Tsunami Alert!! What a letdown. |
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Re: Earthquake & Poss Tsunami Alert!! First Tsunami Waves Smaller than Predicted, Hit Hawaii After 7.7 Canada Earthquake Quote:
![]() Visitors and Oahu residents watch the water level in the Ala Wai Harbor waiting for the arrival of a tsunami Saturday, Oct. 27, 2012, in Honolulu. A tsunami warning has been issued for Hawaii after a 7.7-magnitude earthquake rocked an island off the west coast of Canada Code: 000 WEHW40 PHEB 281101 TSUHWX HIZ001>003-005>009-012>014-016>021-023>026-281301- /O.CAN.PHEB.TS.W.0001.000000T0000Z-000000T0000Z/ /O.NEW.PHEB.TS.Y.0001.121028T1054Z-000000T0000Z/ TSUNAMI MESSAGE NUMBER 10 NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI 101 AM HST SUN OCT 28 2012 TO - CIVIL DEFENSE IN THE STATE OF HAWAII SUBJECT - TSUNAMI ADVISORY THE TSUNAMI WARNING IS NOW CANCELLED FOR THE STATE OF HAWAII. A TSUNAMI ADVISORY IS ISSUED FOR THE STATE OF HAWAII EFFECTIVE AT 1254 AM HST. AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME - 0504 PM HST 27 OCT 2012 COORDINATES - 52.8 NORTH 131.8 WEST LOCATION - QUEEN CHARLOTTE ISLANDS REGION MAGNITUDE - 7.7 MOMENT EVALUATION BASED ON ALL AVAILABLE DATA THE TSUNAMI THREAT HAS DECREASED AND IS NOW AT THE ADVISORY LEVEL AND NOT EXPECTED TO INCREASE. SEA LEVEL CHANGES AND STRONG CURRENTS MAY STILL OCCUR ALONG ALL COASTS THAT COULD BE A HAZARD TO SWIMMERS AND BOATERS AS WELL AS TO PERSONS NEAR THE SHORE AT BEACHES AND IN HARBORS AND MARINAS. THE THREAT MAY CONTINUE FOR SEVERAL HOURS. MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS WARRANT. Code: WEAK51 PAAQ 280502 TSUAK1 BULLETIN PUBLIC TSUNAMI MESSAGE NUMBER 5 NWS WEST COAST/ALASKA TSUNAMI WARNING CENTER PALMER AK 1002 PM PDT SAT OCT 27 2012 THE WARNING ZONES REMAIN THE SAME IN THIS MESSAGE. AN ADVISORY HAS BEEN ISSUED FOR THE REST OF BRITISH COLUMBIA- SOUTH OF THE NORTH TIP OF VANCOUVER ISLAND. ...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/... ...A TSUNAMI ADVISORY IS NOW IN EFFECT WHICH INCLUDES 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 - OREGON AND ASHINGTON FROM THE CALIFORNIA-MEXICO BORDER TO THE WASHINGTON- RITISH 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. THE WAVES WILL FIRST REACH LANGARA ISLAND BRITISH COLUMBIA AT 916 PM PDT ON OCTOBER 27. 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 0425UTC 00.3FT/00.09M PORT ALEXANDER AK 56.2N 134.6W 0410UTC 00.3FT/00.08M WINTER HARBOUR BC 50.7N 128.3W 0402UTC 00.5FT/00.15M 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. http://ptwc.weather.gov/ http://earthquake.usgs.gov/earthquak...usb000df7n.php http://wcatwc.arh.noaa.gov/ |
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Re: Earthquake & Poss Tsunami Alert!! Singing "Shake, Rattle, and Roll.... I said Shake, Rattle, and Roll" ![]() |