000
WEPA40 PHEB 051525
TSUPAC
TSUNAMI BULLETIN NUMBER 002
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 1525Z 05 SEP 2012
THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC
OCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA...
WASHINGTON...OREGON AND CALIFORNIA.
THE EARTHQUAKE MAGNITUDE IS REDUCED TO 7.6
THE WARNING AREA IS REDUCED...SO THE WARNING IS CANCELLED FOR
EL SALVADOR...HONDURAS...MEXICO...COLOMBIA...ECUADOR...
GUATEMALA AND PERU.
... A TSUNAMI WARNING IS IN EFFECT ...
A TSUNAMI WARNING IS IN EFFECT FOR
COSTA RICA / PANAMA / NICARAGUA
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 - 1442Z 05 SEP 2012
COORDINATES - 9.9 NORTH 85.5 WEST
DEPTH - 46 KM
LOCATION - OFF COAST OF COSTA RICA
MAGNITUDE - 7.6
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 IN THE REGION NEAR THE EPICENTER WITHIN MINUTES
TO HOURS. AUTHORITIES IN THE REGION SHOULD TAKE APPROPRIATE
ACTION IN RESPONSE TO THIS POSSIBILITY. THIS CENTER WILL MONITOR
SEA LEVEL GAUGES NEAREST THE REGION AND REPORT IF ANY TSUNAMI
WAVE ACTIVITY IS OBSERVED. THE WARNING WILL NOT EXPAND TO OTHER
AREAS OF THE PACIFIC UNLESS ADDITIONAL DATA ARE RECEIVED TO
WARRANT SUCH AN EXPANSION.
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
-------------------------------- ------------ ------------
COSTA RICA CABO_SAN_ELENA 10.9N 274.0E 1510Z 05 SEP
CABO_MATAPALO 8.4N 276.7E 1518Z 05 SEP
PUERTO_QUEPOS 9.4N 275.8E 1536Z 05 SEP
PANAMA PUNTA_BURICA 8.0N 277.1E 1527Z 05 SEP
PUNTA_MALA 7.5N 280.0E 1615Z 05 SEP
PUERTO_PINA 7.4N 282.0E 1631Z 05 SEP
BALBOA_HTS. 9.0N 280.4E 1742Z 05 SEP
NICARAGUA SAN_JUAN_DL_SUR 11.2N 274.1E 1531Z 05 SEP
CORINTO 12.5N 272.8E 1546Z 05 SEP
PUERTO_SANDINO 12.2N 273.2E 1550Z 05 SEP
BULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT.
THE TSUNAMI WARNING WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.
THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS
FOR ALASKA...BRITISH COLUMBIA...WASHINGTON...OREGON...CALIFORNIA.
http://ptwc.weather.gov/ptwc/text.php?id=pacific.TSUPAC.2012.09.05.1525
