Éste es el Boletin de alerta de Tsunami enviado por
la NOAA después del terremoto de M 8.8 occurrido
esta madrugada en Japón. TSUNAMI BULLETIN NUMBER 002 PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS ISSUED AT 0643Z 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 TSUNAMI WARNING AND WATCH ARE IN EFFECT ... A TSUNAMI WARNING IS IN EFFECT FOR JAPAN / RUSSIA / MARCUS IS. / N. MARIANAS / GUAM / WAKE IS. / TAIWAN A TSUNAMI WATCH IS IN EFFECT FOR YAP / PHILIPPINES / MARSHALL IS. / BELAU / MIDWAY IS. / POHNPEI / CHUUK / KOSRAE / INDONESIA / PAPUA NEW GUINEA / NAURU / JOHNSTON IS. / SOLOMON IS. / KIRIBATI / HAWAII FOR ALL OTHER AREAS COVERED BY THIS BULLETIN... IT IS FOR INFORMATION ONLY AT THIS TIME. 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 - 38.2 NORTH 142.5 EAST DEPTH - 10 KM LOCATION - NEAR EAST COAST OF HONSHU JAPAN MAGNITUDE - 8.8 MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY GAUGE LOCATION LAT LON TIME AMPL PER ------------------- ----- ------ ----- --------------- ----- 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 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 POINTS WITHIN THE WARNING AND WATCH AREAS ARE GIVEN BELOW. ACTUAL ARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN SUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR. LOCATION FORECAST POINT COORDINATES ARRIVAL TIME -------------------------------- ------------ ------------ JAPAN KATSUURA 35.1N 140.3E 0635Z 11 MAR KUSHIRO 42.9N 144.3E 0642Z 11 MAR HACHINOHE 40.5N 141.5E 0700Z 11 MAR SHIMIZU 32.8N 133.0E 0756Z 11 MAR OKINAWA 26.2N 127.8E 0912Z 11 MAR RUSSIA URUP_IS 46.1N 150.5E 0714Z 11 MAR SEVERO_KURILSK 50.8N 156.1E 0834Z 11 MAR PETROPAVLOVSK_K 53.2N 159.6E 0836Z 11 MAR UST_KAMCHATSK 56.1N 162.6E 0840Z 11 MAR MEDNNY_IS 54.7N 167.4E 0903Z 11 MAR MARCUS IS. MARCUS_IS. 24.3N 154.0E 0757Z 11 MAR N. MARIANAS SAIPAN 15.3N 145.8E 0853Z 11 MAR GUAM GUAM 13.4N 144.7E 0909Z 11 MAR WAKE IS. WAKE_IS. 19.3N 166.6E 0925Z 11 MAR TAIWAN HUALIEN 24.0N 121.7E 0932Z 11 MAR HUALIEN 24.0N 121.6E 0933Z 11 MAR TAITUNG 22.7N 121.2E 0936Z 11 MAR CHILUNG 25.2N 121.8E 1004Z 11 MAR YAP YAP_IS. 9.5N 138.1E 0944Z 11 MAR PHILIPPINES PALANAN 17.1N 122.6E 0955Z 11 MAR LEGASPI 13.2N 123.8E 1026Z 11 MAR DAVAO 6.8N 125.7E 1053Z 11 MAR MARSHALL IS. ENIWETOK 11.4N 162.3E 1013Z 11 MAR KWAJALEIN 8.7N 167.7E 1044Z 11 MAR MAJURO 7.1N 171.4E 1124Z 11 MAR BELAU MALAKAL 7.3N 134.5E 1025Z 11 MAR MIDWAY IS. MIDWAY_IS. 28.2N 182.6E 1026Z 11 MAR POHNPEI POHNPEI_IS. 7.0N 158.2E 1027Z 11 MAR CHUUK CHUUK_IS. 7.4N 151.8E 1034Z 11 MAR KOSRAE KOSRAE_IS. 5.5N 163.0E 1043Z 11 MAR INDONESIA GEME 4.6N 126.8E 1049Z 11 MAR BEREBERE 2.5N 128.7E 1058Z 11 MAR WARSA 0.6S 135.8E 1110Z 11 MAR MANOKWARI 0.8S 134.2E 1118Z 11 MAR PATANI 0.4N 128.8E 1124Z 11 MAR JAYAPURA 2.4S 140.8E 1135Z 11 MAR SORONG 0.8S 131.1E 1135Z 11 MAR PAPUA NEW GUINE MANUS_IS. 2.0S 147.5E 1124Z 11 MAR KAVIENG 2.5S 150.7E 1124Z 11 MAR VANIMO 2.6S 141.3E 1134Z 11 MAR WEWAK 3.5S 143.6E 1146Z 11 MAR RABAUL 4.2S 152.3E 1154Z 11 MAR KIETA 6.1S 155.6E 1205Z 11 MAR AMUN 6.0S 154.7E 1211Z 11 MAR MADANG 5.2S 145.8E 1215Z 11 MAR NAURU NAURU 0.5S 166.9E 1149Z 11 MAR JOHNSTON IS. JOHNSTON_IS. 16.7N 190.5E 1202Z 11 MAR SOLOMON IS. PANGGOE 6.9S 157.2E 1221Z 11 MAR FALAMAE 7.4S 155.6E 1222Z 11 MAR MUNDA 8.4S 157.2E 1239Z 11 MAR KIRIBATI TARAWA_IS. 1.5N 173.0E 1228Z 11 MAR BULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT. THE TSUNAMI WARNING AND WATCH 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.
Aquí tenéis una imagen de cómo se extiende a lo largo del Pacífico unas 12 horas después (tomada de la página del Servicio de Información de Emergencias y Desastres Naturales de Hungría http://hisz.rsoe.hu/alertmap/):
Y aquí os pongo otra imagen del sismograma del terremoto y el epicentro del seismo (tomadas de http://bcespquakes.wordpress.com/):
Finalmente un vídeo de cómo la naturaleza, en este caso en forma de tsunami, puede con cualquier elemento creado por el hombre, lo que debería hacernos pensar cuan insignificantes somos a pesar de pensar que somos más importantes que cualquier otro ser vivo o cualquier elemento del Planeta/Universo.
Salu2
