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Tsunami
Date: 11 Aug 2010 00:12:58 -0000
Last-Modified: 10 Aug 2010 05:52:11 -0000
Expires: 11 Aug 2010 00:22:58 -0000
WEPA42 PHEB 100551
TIBPAC
TSUNAMI BULLETIN NUMBER 002
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 0551Z 10 AUG 2010
THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC
OCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA...
WASHINGTON...OREGON AND CALIFORNIA.
. TSUNAMI INFORMATION BULLETIN ... THIS BULLETIN IS FOR INFORMATION ONLY.
NOTE THAT A TSUNAMI WAS RECORDED AT PORT VILA, VANUATU
THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY
NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE
DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND
ANY ACTIONS TO BE TAKEN IN RESPONSE.
AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
ORIGIN TIME - 0524Z 10 AUG 2010
COORDINATES - 17.5 SOUTH 168.0 EAST
DEPTH - 21 KM
LOCATION - VANUATU ISLANDS
MAGNITUDE - 7.5
EVALUATION:
SEA LEVEL READINGS INDICATE A TSUNAMI WAS GENERATED. A RECORDED
WAVE AMPLITUDE OF 23 CM HAS BEEN OBSERVED AT PORT VILA, VANUATU.
THIS IS ONLY AN INITIAL MEASUREMENT OF THE FIRST ARRIVING TSUNAMI
WAVE. HIGHER WAVE AMPLITUDES MAY YET TO BE OBSERVED ALONG COASTS
NEAR THE EARTHQUAKE EPICENTER. FOR THOSE AREAS - WHEN NO MAJOR
WAVES ARE OBSERVED FOR TWO HOURS AFTER THE ESTIMATED TIME OF
ARRIVAL OR DAMAGING WAVES HAVE NOT OCCURRED FOR AT LEAST TWO HOURS
THEN LOCAL AUTHORITIES CAN ASSUME THE THREAT IS PASSED.
DANGER TO BOATS AND COASTAL STRUCTURES CAN
CONTINUE FOR SEVERAL HOURS DUE TO THE CONTINUING SEA LEVEL
CHANGES AND RAPID CURRENTS. AS LOCAL CONDITIONS CAN CAUSE A WIDE
VARIATION IN TSUNAMI WAVE ACTION THE ALL CLEAR DETERMINATION MUST
BE MADE BY LOCAL AUTHORITIES.
NO TSUNAMI THREAT EXISTS FOR OTHER COASTAL AREAS IN THE PACIFIC
ALTHOUGH SOME OTHER AREAS MAY EXPERIENCE SMALL NON-DESTRUCTIVE
SEA LEVEL CHANGES LASTING UP TO SEVERAL HOURS.
THIS WILL BE THE FINAL BULLETIN ISSUED FOR THIS EVENT UNLESS
ADDITIONAL INFORMATION BECOMES AVAILABLE.
