WEAK51 PAAQ 051017 TSUAK1 BULLETIN PUBLIC TSUNAMI MESSAGE NUMBER 3 NWS WEST COAST/ALASKA TSUNAMI WARNING CENTER PALMER AK 117 AM AKST SAT JAN 5 2013 THE MAGNITUDE HAS BEEN UPDATED TO 7.5 AND A SMALL TSUNAMI HAS BEEN OBSERVED AT PORT ALEXANDER, ALASKA. ...THE TSUNAMI WARNING REMAINS IN EFFECT... WARNINGS/ADVISORIES/WATCHES - UPDATED ------------------------------------- TSUNAMI WARNING IN EFFECT FOR... * THE COASTAL AREAS OF BRITISH COLUMBIA AND ALASKA FROM THE NORTH TIP OF VANCOUVER ISLAND BRITISH COLUMBIA TO CAPE FAIRWEATHER ALASKA/LOCATED 80 MILES SE OF YAKUTAT/ CANCELLATIONS ------------- * THE TSUNAMI ADVISORY IS CANCELED FOR THE COASTAL AREAS OF BRITISH COLUMBIA FROM THE WASHINGTON-BRITISH COLUMBIA BORDER TO THE NORTH TIP OF VANCOUVER ISLAND BRITISH COLUMBIA * THE TSUNAMI WARNING IS CANCELED FOR THE COASTAL AREAS OF ALASKA FROM CAPE FAIRWEATHER ALASKA/LOCATED 80 MILES SE OF YAKUTAT/ TO CAPE SUCKLING ALASKA/LOCATED 75 MILES SE OF CORDOVA/ * THE TSUNAMI ADVISORY IS CANCELED FOR THE COASTAL AREAS OF ALASKA FROM CAPE SUCKLING ALASKA/LOCATED 75 MILES SE OF CORDOVA/ TO KENNEDY ENTRANCE ALASKA/LOCATED 40 MILES SW OF HOMER/ IMPACTS FOR TSUNAMI WARNING AREAS --------------------------------- * A TSUNAMI WITH SIGNIFICANT WIDESPREAD INUNDATION OF LAND IS EXPECTED. * WIDESPREAD DANGEROUS COASTAL FLOODING ACCOMPANIED BY POWERFUL CURRENTS IS POSSIBLE AND MAY CONTINUE FOR MANY HOURS AFTER TSUNAMI ARRIVAL. * THE FIRST WAVE MAY NOT BE THE LARGEST. RECOMMENDED ACTIONS - UPDATED ----------------------------- * IF YOU ARE IN A WARNING AREA - MOVE INLAND TO HIGHER GROUND. * BE ALERT TO INSTRUCTIONS FROM YOUR LOCAL EMERGENCY OFFICIALS. * DO NOT GO TO THE COAST TO OBSERVE THE TSUNAMI. * DO NOT RETURN TO THE COAST UNTIL LOCAL EMERGENCY OFFICIALS INDICATE IT IS SAFE TO DO SO. FORECASTS AND/OR OBSERVATIONS OF TSUNAMI ACTIVITY ------------------------------------------------- FORECAST FORECAST FORECAST OBSERVED START OF TSUNAMI MAX TSUNAMI TSUNAMI SITE OF TSUNAMI DURATION HEIGHT HEIGHT ---- ---------- -------- ------------- ------- * BRITISH COLUMBIA LANGARA 0129 PST JAN 5 * ALASKA SITKA 0043 AKST JAN 5 ELFIN COVE 0055 AKST JAN 5 CRAIG 0115 AKST JAN 5 FORECAST MAX TSUNAMI HEIGHT IS THE HIGHEST EXPECTED WATER LEVEL ABOVE THE TIDE. FORECAST TSUNAMI DURATION IS THE APPROXIMATE LENGTH OF TIME WHICH THE TSUNAMI MAY PRODUCE DANGEROUS CURRENTS AND WAVE ACTIVITY. OBSERVED TSUNAMI HEIGHT IS THE HIGHEST WATER LEVEL ABOVE THE TIDE LEVEL AT THE TIME OF MEASUREMENT. ADDITIONAL OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED ----------------------------------------------------- TIME OBSERVED MAX SITE OF MEASUREMENT TSUNAMI HEIGHT ---------------------------- --------------- -------------- PORT ALEXANDER AK 1007 UTC 01-05 00.5FT HEIGHT - OBSERVED MAX TSUNAMI HEIGHT IS THE WATER LEVEL ABOVE THE TIDE LEVEL AT THE TIME OF MEASUREMENT. PRELIMINARY EARTHQUAKE PARAMETERS --------------------------------- * MAGNITUDE 7.5 * ORIGIN TIME 2358 AKST JAN 04 2013 0058 PST JAN 05 2013 0858 UTC JAN 05 2013 * COORDINATES 55.3 NORTH 134.9 WEST * DEPTH 3 MILES * LOCATION 95 MILES NW OF DIXON ENTRANCE ALASKA 210 MILES S OF JUNEAU ALASKA NEXT UPDATE AND ADDITIONAL INFORMATION -------------------------------------- * THIS MESSAGE WILL BE UPDATED IN 45 MINUTES. * REFER TO THE INTERNET SITE NTWC.ARH.NOAA.GOV FOR MORE INFORMATION. * PACIFIC COASTAL RESIDENTS 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. $$