Magnitude
7.5
Date-Time
Tuesday, August 10, 2010 at 05:23:46 UTC
Tuesday, August 10, 2010 at 04:23:46 PM at epicenter
Monday, August 9, 2010 at 7:23:46 PM HST
Location
17.590°S, 167.978°E
Depth
35 km (21.7 miles) set by location program
Region
VANUATU
Distances
40 km (25 miles) WNW of PORT-VILA, Efate, Vanuatu
245 km (150 miles) SSE of Luganville, Espiritu Santo, Vanuatu
255 km (160 miles) NNW of Isangel, Tanna, Vanuatu
1890 km (1170 miles) ENE of BRISBANE, Queensland, Australi
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 (9 INCHES) 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.
THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS FOR ALASKA…BRITISH COLUMBIA…WASHINGTON…OREGON…CALIFORNIA.