000 WEPA40 PHEB 111332 TSUPAC TSUNAMI BULLETIN NUMBER 009 PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS ISSUED AT 1332Z 11 MAR 2011 THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC OCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA... WASHINGTON...OREGON AND CALIFORNIA. ... A WIDESPREAD TSUNAMI WARNING IS IN EFFECT ... A TSUNAMI WARNING IS IN EFFECT FOR JAPAN / RUSSIA TAIWAN / YAP / PHILIPPINES / MARSHALL IS. / BELAU / MIDWAY IS. / POHNPEI / CHUUK / KOSRAE / INDONESIA / PAPUA NEW GUINEA / NAURU / JOHNSTON IS. / SOLOMON IS. / KIRIBATI / HOWLAND-BAKER / HAWAII / TUVALU / PALMYRA IS. / VANUATU / TOKELAU / JARVIS IS. / WALLIS-FUTUNA / SAMOA / AMERICAN SAMOA / COOK ISLANDS / NIUE / FIJI / NEW CALEDONIA / TONGA / MEXICO / KERMADEC IS / FR. POLYNESIA / PITCAIRN / GUATEMALA / EL SALVADOR / COSTA RICA / NICARAGUA / ANTARCTICA / PANAMA / HONDURAS / CHILE / ECUADOR / COLOMBIA / PERU 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 - 0546Z 11 MAR 2011 COORDINATES - 38.3 NORTH 142.4 EAST DEPTH - 24 KM LOCATION - NEAR EAST COAST OF HONSHU JAPAN MAGNITUDE - 8.9 MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY GAUGE LOCATION LAT LON TIME AMPL PER NAWILIWILI KAUAI 22.0N 159.4W 1259Z 0.49M / 1.6FT 52MIN BARBERS PT HI 21.3N 158.1W 1308Z 0.70M / 2.3FT 64MIN TERN FR. FRIGATE US 23.9N 166.3W 1224Z 0.38M / 1.2FT 16MIN JOHNSTON US 16.7N 169.5W 1206Z 0.20M / 0.7FT 72MIN DART 52402 11.7N 154.2E 0931Z 0.29M / 0.9FT 22MIN DART 46403 52.7N 156.9W 1127Z 0.09M / 0.3FT 60MIN LEGASPI PH 13.1N 123.8E 1116Z 0.25M / 0.8FT 58MIN KWAJALEIN MH 8.7N 167.7E 1111Z 0.55M / 1.8FT 48MIN NIKOLSKI AK 52.9N 168.9W 1109Z 0.27M / 0.9FT 64MIN HANASAKI HOKKAIDO J 43.3N 145.6E 0656Z 1.83M / 6.0FT 24MIN MIDWAY 28.2N 177.4W 1048Z 1.27M / 4.2FT 12MIN TOSASHIMIZU SHIKOKU 32.8N 133.0E 0946Z 0.84M / 2.8FT 28MIN ADAK AK 51.9N 176.6W 1034Z 0.35M / 1.2FT 22MIN YAP FM 9.5N 138.1E 1013Z 0.15M / 0.5FT 88MIN DART 21415 50.2N 171.8E 0845Z 0.27M / 0.9FT 52MIN WAKE US 19.3N 166.6E 0928Z 0.39M / 1.3FT 14MIN NAHA OKINAWA JP 26.2N 127.7E 0901Z 0.25M / 0.8FT 60MIN SAIPAN US 15.2N 145.7E 0916Z 0.65M / 2.1FT 30MIN OMAEZAKI HONSHU JP 34.6N 138.2E 0818Z 1.42M / 4.6FT 56MIN DART 21419 44.5N 155.7E 0716Z 0.40M / 1.3FT 20MIN DART 21413 30.5N 152.1E 0659Z 0.76M / 2.5FT 32MIN DART 21401 42.6N 152.6E 0643Z 0.67M / 2.2FT 40MIN DART 21418 38.7N 148.7E 0619Z 1.08M / 3.5FT 06MIN LAT - LATITUDE (N-NORTH, S-SOUTH) LON - LONGITUDE (E-EAST, W-WEST) TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME) AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL. IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT. VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT). PER - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT. NOTE - DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY ARE GENERALLY MUCH SMALLER THAN WOULD BE COASTAL MEASUREMENTS AT SIMILAR LOCATIONS. EVALUATION SEA LEVEL READINGS CONFIRM THAT A TSUNAMI HAS BEEN GENERATED WHICH COULD CAUSE WIDESPREAD DAMAGE. AUTHORITIES SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS THREAT. THIS CENTER WILL CONTINUE TO MONITOR SEA LEVEL DATA TO DETERMINE THE EXTENT AND SEVERITY OF THE THREAT. A TSUNAMI IS A SERIES OF WAVES AND THE FIRST WAVE MAY NOT BE THE LARGEST. TSUNAMI WAVE HEIGHTS CANNOT BE PREDICTED AND CAN VARY SIGNIFICANTLY ALONG A COAST DUE TO LOCAL EFFECTS. THE TIME FROM ONE TSUNAMI WAVE TO THE NEXT CAN BE FIVE MINUTES TO AN HOUR, AND THE THREAT CAN CONTINUE FOR MANY HOURS AS MULTIPLE WAVES ARRIVE. FOR ALL 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 RAPID CURRENTS. AS LOCAL CONDITIONS CAN CAUSE A WIDE VARIATION IN TSUNAMI WAVE ACTION THE ALL CLEAR DETERMINATION MUST BE MADE BY LOCAL AUTHORITIES. BULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT. THE TSUNAMI WARNING WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE. THE JAPAN METEOROLOGICAL AGENCY MAY ALSO ISSUE TSUNAMI MESSAGES FOR THIS EVENT TO COUNTRIES IN THE NORTHWEST PACIFIC AND SOUTH CHINA SEA REGION. IN CASE OF CONFLICTING INFORMATION... THE MORE CONSERVATIVE INFORMATION SHOULD BE USED FOR SAFETY. THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS FOR ALASKA...BRITISH COLUMBIA...WASHINGTON...OREGON...CALIFORNIA.