0 Members and 1 Guest are viewing this topic.
TSUNAMI BULLETIN NUMBER 002PACIFIC TSUNAMI WARNING CENTER/NOAA/NWSISSUED AT 0745Z 27 FEB 2010THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFICOCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA...WASHINGTON...OREGON AND CALIFORNIA.... A TSUNAMI WARNING AND WATCH ARE IN EFFECT ...A TSUNAMI WARNING IS IN EFFECT FOR CHILE / PERUA TSUNAMI WATCH IS IN EFFECT FOR ECUADOR / COLOMBIA / ANTARCTICA / PANAMA / COSTA RICAFOR ALL OTHER AREAS COVERED BY THIS BULLETIN... IT IS FORINFORMATION ONLY AT THIS TIME.THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLYNATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKEDECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA ANDANY ACTIONS TO BE TAKEN IN RESPONSE.AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME - 0634Z 27 FEB 2010 COORDINATES - 36.1 SOUTH 72.6 WEST DEPTH - 55 KM LOCATION - NEAR COAST OF CENTRAL CHILE MAGNITUDE - 8.6MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY GAUGE LOCATION LAT LON TIME AMPL PER ------------------- ----- ------ ----- --------------- ----- VALPARAISO CL 33.0S 71.6W 0708Z 1.29M / 4.2FT 20MIN TALCAHUANO CL 36.7S 73.4W 0652Z 1.15M / 3.8FT 46MIN 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.EVALUATION SEA LEVEL READINGS INDICATE A TSUNAMI WAS GENERATED. IT MAY HAVE BEEN DESTRUCTIVE ALONG COASTS NEAR THE EARTHQUAKE EPICENTER AND COULD ALSO BE A THREAT TO MORE DISTANT COASTS. AUTHORITIES SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS POSSIBILITY. THIS CENTER WILL CONTINUE TO MONITOR SEA LEVEL DATA TO DETERMINE THE EXTENT AND SEVERITY OF THE THREAT. 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.ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTSWITHIN THE WARNING AND WATCH AREAS ARE GIVEN BELOW. ACTUALARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THELARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEENSUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR. LOCATION FORECAST POINT COORDINATES ARRIVAL TIME -------------------------------- ------------ ------------ CHILE TALCAHUANO 36.7S 73.1W 0729Z 27 FEB VALPARAISO 33.0S 71.6W 0739Z 27 FEB COQUIMBO 29.9S 71.3W 0801Z 27 FEB CORRAL 39.8S 73.5W 0810Z 27 FEB CALDERA 27.1S 70.8W 0821Z 27 FEB ANTOFAGASTA 23.3S 70.4W 0844Z 27 FEB IQUIQUE 20.2S 70.1W 0911Z 27 FEB ARICA 18.5S 70.3W 0929Z 27 FEB GOLFO DE PENAS 47.1S 74.9W 0934Z 27 FEB PUERTO MONTT 41.5S 73.0W 1052Z 27 FEB EASTER IS. 27.1S 109.4W 1205Z 27 FEB PUNTA ARENAS 53.2S 70.9W 1213Z 27 FEB PERU MOLLENDO 17.1S 72.0W 0936Z 27 FEB SAN JUAN 15.3S 75.2W 0952Z 27 FEB LA PUNTA 12.1S 77.2W 1045Z 27 FEB PIMENTAL 6.9S 80.0W 1114Z 27 FEB TALARA 4.6S 81.5W 1127Z 27 FEB CHIMBOTE 9.0S 78.8W 1132Z 27 FEB ECUADOR LA LIBERTAD 2.2S 81.2W 1202Z 27 FEB ESMERELDAS 1.2N 79.8W 1234Z 27 FEB BALTRA IS. 0.5S 90.3W 1313Z 27 FEB COLOMBIA TUMACO 1.8N 78.9W 1253Z 27 FEB BAHIA SOLANO 6.3N 77.4W 1327Z 27 FEB BUENAVENTURA 3.8N 77.2W 1340Z 27 FEB ANTARCTICA THURSTON IS. 72.0S 100.0W 1312Z 27 FEB PANAMA PUERTO PINA 7.4N 78.1W 1331Z 27 FEB PUNTA MALA 7.5N 79.9W 1334Z 27 FEB PUNTA BURICA 8.0N 82.8W 1340Z 27 FEB COSTA RICA CABO MATAPALO 8.4N 83.3W 1344Z 27 FEBBULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT.THE TSUNAMI WARNING AND WATCH WILL REMAIN IN EFFECT UNTILFURTHER NOTICE.THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTSFOR ALASKA...BRITISH COLUMBIA...WASHINGTON...OREGON...CALIFORNIA.
TSUNAMI MESSAGE NUMBER 2NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI849 PM HST FRI FEB 26 2010TO - CIVIL DEFENSE IN THE STATE OF HAWAIISUBJECT - TSUNAMI ADVISORY SUPPLEMENTA TSUNAMI ADVISORY CONTINUES IN EFFECT FOR THE STATE OF HAWAII.AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME - 0834 PM HST 26 FEB 2010 COORDINATES - 36.1 SOUTH 72.6 WEST LOCATION - NEAR COAST OF CENTRAL CHILE MAGNITUDE - 8.5 MOMENTEVALUATION THE PACIFIC TSUNAMI WARNING CENTER HAS ISSUED AN EXPANDING REGIONAL TSUNAMI WARNING AND WATCH FOR PARTS OF THE PACIFIC LOCATED CLOSER TO THE EARTHQUAKE. AN EVALUATION OF THE PACIFIC WIDE TSUNAMI THREAT IS UNDERWAY AND THERE IS A POSSIBILITY THAT HAWAII COULD BE ELEVATED TO A WATCH OR WARNING STATUS. IF TSUNAMI WAVES IMPACT HAWAII THEIR ESTIMATED EARLIEST ARRIVAL TIME IS 1119 AM HST SAT 27 FEB 2010MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS WARRANT.
EVALUATION A TSUNAMI HAS BEEN GENERATED THAT COULD CAUSE DAMAGE ALONG COASTLINES OF ALL ISLANDS IN THE STATE OF HAWAII. URGENT ACTION SHOULD BE TAKEN TO PROTECT LIVES AND PROPERTY. A TSUNAMI IS A SERIES OF LONG OCEAN WAVES. EACH INDIVIDUAL WAVE CREST CAN LAST 5 TO 15 MINUTES OR MORE AND EXTENSIVELY FLOOD COASTAL AREAS. THE DANGER CAN CONTINUE FOR MANY HOURS AFTER THE INITIAL WAVE AS SUBSEQUENT WAVES ARRIVE. TSUNAMI WAVE HEIGHTS CANNOT BE PREDICTED AND THE FIRST WAVE MAY NOT BE THE LARGEST. TSUNAMI WAVES EFFICIENTLY WRAP AROUND ISLANDS. ALL SHORES ARE AT RISK NO MATTER WHICH DIRECTION THEY FACE. THE TROUGH OF A TSUNAMI WAVE MAY TEMPORARILY EXPOSE THE SEAFLOOR BUT THE AREA WILL QUICKLY FLOOD AGAIN. EXTREMELY STRONG AND UNUSUAL NEARSHORE CURRENTS CAN ACCOMPANY A TSUNAMI. DEBRIS PICKED UP AND CARRIED BY A TSUNAMI AMPLIFIES ITS DESTRUCTIVE POWER. SIMULTANEOUS HIGH TIDES OR HIGH SURF CAN SIGNIFICANTLY INCREASE THE TSUNAMI HAZARD. THE ESTIMATED ARRIVAL TIME IN HAWAII OF THE FIRST TSUNAMI WAVE IS 1119 AM HST SAT 27 FEB 2010MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS WARRANT.
Author
Topic: 8.8 Quake in Chile...Tsunami Warning for Hawaii (Read 1894 times)
Recent Posts
Advertisement
