Vladimir wrote:8.5 (Preliminary magnitude — update expected within 15 minutes)
Date-Time Saturday, February 27, 2010 at 06:34:13 UTC
Saturday, February 27, 2010 at 03:34:13 AM at epicenter
Location 36.100°S, 72.600°W
Depth 55 km (34.2 miles) set by location program
Region BIO-BIO, CHILE
Distances 91 km (56 miles) NNE (26°) from Concepcion, Chile
110 km (68 miles) SW (230°) from Talca, Chile
295 km (183 miles) N (1°) from Temuco, Chile
339 km (210 miles) SSW (211°) from SANTIAGO, Chile
Location Uncertainty Error estimate not available
Parameters NST= 61, Nph= 61, Dmin=549.2 km, Rmss=1.49 sec, Gp= 90°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=1
Source West Coast and Alaska Tsunami Warning Center/NOAA/NWS
TSUNAMI BULLETIN NUMBER 001
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 0646Z 27 FEB 2010
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
CHILE / PERU
A TSUNAMI WATCH IS IN EFFECT FOR
ECUADOR
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 – 0634Z 27 FEB 2010 (8:34 p.m. HST on February 26, 2010)
COORDINATES – 36.1 SOUTH 72.6 WEST
DEPTH – 55 KM
LOCATION – NEAR COAST OF CENTRAL CHILE
MAGNITUDE – 8.5
EVALUATION
IT IS NOT KNOWN THAT A TSUNAMI WAS GENERATED. THIS WARNING IS BASED ONLY ON THE EARTHQUAKE EVALUATION. AN EARTHQUAKE OF THIS SIZE HAS THE POTENTIAL TO GENERATE A DESTRUCTIVE TSUNAMI THAT CAN STRIKE COASTLINES NEAR THE EPICENTER WITHIN MINUTES AND MORE DISTANT COASTLINES WITHIN HOURS. AUTHORITIES SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS POSSIBILITY. THIS CENTER WILL MONITOR SEA LEVEL DATA FROM GAUGES NEAR THE EARTHQUAKE TO DETERMINE IF A TSUNAMI WAS GENERATED AND ESTIMATE THE SEVERITY OF THE THREAT.
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
-------------------------------- ------------ ------------
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
BULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT. THE TSUNAMI WARNING AND WATCH WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.
THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS FOR ALASKA…BRITISH COLUMBIA…WASHINGTON…OREGON…CALIFORNIA.