Click each of the locations as they are highlighted on the map to visit the West Coast/Alaska Tsunami Warning Center (WCATWC) and Pacific Tsunami Warning Center (PTWC), Chignik, San Diego, Hilo, and Coos County. Also view the lessons, 'When Tsunamis Strike', and 'Wave Detection'. Complete Worksheet 2 as you take the lessons.
BULLETIN TSUNAMI MESSAGE NUMBER 2 NWS WEST COAST/ALASKA TSUNAMI WARNING CENTER PALMER AK 835 AM AKDT ...A TSUNAMI WARNING IS IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF BRITISH COLUMBIA AND ALASKA FROM THE NORTH TIP OF VANCOUVER ISLAND BRITISH COLUMBIA TO ATTU ALASKA... ...A TSUNAMI WATCH IS IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF CALIFORNIA - OREGON - WASHINGTON AND BRITISH COLUMBIA FROM THE CALIFORNIA-MEXICO BORDER TO THE NORTH TIP OF VANCOUVER ISLAND BRITISH COLUMBIA... A TSUNAMI HAS BEEN GENERATED WHICH COULD CAUSE DAMAGE TO THE WARNING REGIONS LISTED IN THE HEADLINE. PERSONS IN LOW-LYING COASTAL AREAS SHOULD BE ALERT TO INSTRUCTIONS FROM THEIR LOCAL EMERGENCY OFFICIALS. EVACUATIONS ARE ONLY ORDERED BY EMERGENCY RESPONSE AGENCIES. - PERSONS IN TSUNAMI WARNING COASTAL AREAS SHOULD MOVE INLAND TO HIGHER GROUND. - PERSONS IN TSUNAMI WATCH AREAS SHOULD STAY ALERT FOR SUPPLEMENTAL INFORMATION. A TSUNAMI HAS BEEN OBSERVED AT THE FOLLOWING SITES - DEEP-WATER PRESSURE SENSORS INDICATE THAT A TSUNAMI HAS BEEN GENERATE APPROXIMATELY 105MI/170KM SOUTHEAST OF CHIGNIK AK. PRELIMINARY EARTHQUAKE PARAMETERS MAGNITUDE - 9.0 TIME - 0800 AKDT 0900 PDT 1600 UTC LOCATION - 55.0 NORTH 157.0 WEST 105 MILES/169 KM SE OF CHIGNIK ALASKA 500 MILES/805 KM SW OF ANCHORAGE ALASKA DEPTH - 28 MILES/45 KM
TSUNAMI BULLETIN NUMBER 002 PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS ISSUED AT 1735Z ... A WIDESPREAD TSUNAMI WARNING IS IN EFFECT ... A TSUNAMI WARNING IS IN EFFECT FOR RUSSIA / MIDWAY IS. / HAWAII / JAPAN / JOHNSTON IS. / WAKE IS. / MEXICO / MARCUS IS. / PALMYRA IS. / MARSHALL IS. / KIRIBATI / JARVIS IS. / N. MARIANAS / HOWLAND-BAKER / POHNPEI / KOSRAE / GUAM / CHUUK / NAURU / COOK ISLANDS / YAP / TOKELAU / TUVALU / CHINESE TAIPEI / FR. POLYNESIA / BELAU / PHILIPPINES / SAMOA / AMERICAN SAMOA / WALLIS-FUTUNA / PAPUA NEW GUINEA / NIUE / INDONESIA / SOLOMON IS. / VANUATU / TONGA / GUATEMALA / FIJI / EL SALVADOR / NICARAGUA / KERMADEC IS / COSTA RICA / HONDURAS / PITCAIRN / PANAMA / ECUADOR / NEW CALEDONIA / NEW ZEALAND / COLOMBIA / AUSTRALIA / CHILE / PERU / ANTARCTICA AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME - 1600Z COORDINATES - 55.0 NORTH 157.0 WEST DEPTH - 45 KM LOCATION - ALASKA PENINSULA MAGNITUDE - 9.0 EVALUATION INITIAL SEA LEVEL READINGS FROM DEEP OCEAN GAUGES CONFIRM THAT A SIGNIFICANT TSUNAMI HAS BEEN GENERATED WHICH COULD CAUSE WIDESPREAD DAMAGE. AUTHORITIES SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS THREAT.
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