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Monday, August 27, 2012

7.4 Magnitude Quake Off El Salvador Coast, Along With Tsunami


Strong earthquake off El Salvador

August 27, 2012


(AP) SAN SALVADOR, El Salvador - A strong magnitude-7.4 earthquake struck off the coast of El Salvador, followed an hour later by a second, magnitude-5.4 temblor, authorities said early Monday.
There were no immediate reports of damages or injuries.
A tsunami warning was put into effect for Costa Rica, Nicaragua, El Salvador, Honduras, Guatemala, Panama and Mexico after the quake struck at 10:37 p.m. Sunday. It was later rescinded.
David Walsh, an oceanographer with the Pacific Tsunami Center in Ewa Beach, Hawaii, said a minor 7.8-inch swell was registered off Acajutla, El Salvador.
The quake was located 86 miles south-southwest of San Miguel, the U.S. Geological Survey reported on its web site. The temblor took place at a depth of 32.9 miles). The second quake registered about an hour later in the same area, officials said.
Alfonso Lara, a technician with El Salvador's Civil Protection agency, said authorities were alerted to the threat of a tsunami. "We are doing a general monitoring of the entire coast through our technicians and representatives," he said.
On Sunday, dozens of small to moderate earthquakes struck southeastern California, knocking trailer homes off their foundations and shattering windows in a small farming town east of San Diego. The largest quake registered at a magnitude 5.5 and was centered about three miles northwest of the town of Brawley, according to the USGS. Another quake about an hour and a half earlier registered at magnitude 5.3. No injuries were reported.

Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude7.3
Date-Time
Location12.278°N, 88.528°W
Depth20.3 km (12.6 miles)
RegionOFFSHORE EL SALVADOR
Distances111 km (68 miles) S of Puerto El Triunfo, El Salvador
118 km (73 miles) S of Usulutan, El Salvador
123 km (76 miles) S of San Rafael Oriente, El Salvador
133 km (82 miles) S of Santiago de Maria, El Salvador
Location Uncertaintyhorizontal +/- 16.1 km (10.0 miles); depth +/- 4.2 km (2.6 miles)
ParametersNST=345, Nph=345, Dmin=130.2 km, Rmss=1.21 sec, Gp= 65°,
M-type=(unknown type), Version=D
Source
  • Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)
Event IDusc000c7yw

INITIAL TSUNAMI INFORMATION...

000
WEPA42 PHEB 270445
TIBPAC

TSUNAMI BULLETIN NUMBER 001
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 0445Z 27 AUG 2012

THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC
OCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA...
WASHINGTON...OREGON AND CALIFORNIA.

... TSUNAMI INFORMATION BULLETIN ...

THIS BULLETIN IS FOR INFORMATION ONLY.

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 -  0437Z 27 AUG 2012
 COORDINATES -  12.2 NORTH   88.5 WEST
 DEPTH       -  51 KM
 LOCATION    -  OFF COAST OF CENTRAL AMERICA
 MAGNITUDE   -  7.4

EVALUATION

 NO DESTRUCTIVE WIDESPREAD TSUNAMI THREAT EXISTS BASED ON
 HISTORICAL EARTHQUAKE AND TSUNAMI DATA.

 HOWEVER - EARTHQUAKES OF THIS SIZE SOMETIMES GENERATE LOCAL
 TSUNAMIS THAT CAN BE DESTRUCTIVE ALONG COASTS LOCATED WITHIN
 A HUNDRED KILOMETERS OF THE EARTHQUAKE EPICENTER. AUTHORITIES
 IN THE REGION OF THE EPICENTER SHOULD BE AWARE OF THIS
 POSSIBILITY AND TAKE APPROPRIATE ACTION.

THIS WILL BE THE ONLY BULLETIN ISSUED FOR THIS EVENT UNLESS
ADDITIONAL INFORMATION BECOMES AVAILABLE.

THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS
FOR ALASKA...BRITISH COLUMBIA...WASHINGTON...OREGON...CALIFORNIA.

TSUNAMI WARNING

000
WEPA40 PHEB 270458
TSUPAC

TSUNAMI BULLETIN NUMBER 002
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 0458Z 27 AUG 2012

THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC
OCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA...
WASHINGTON...OREGON AND CALIFORNIA.

THIS EARTHQUAKE APPEARS TO BE A SLOW EARTHQUAKE WITH ADDITIONAL
TSUNAMI POTENTIAL.  THEREFORE A WARNING IS BEING ISSUED.

... A TSUNAMI WARNING IS IN EFFECT ...

A TSUNAMI WARNING IS IN EFFECT FOR

 COSTA RICA / NICARAGUA / EL SALVADOR / HONDURAS / GUATEMALA /
 PANAMA / MEXICO

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 -  0437Z 27 AUG 2012
 COORDINATES -  12.7 NORTH   88.5 WEST
 DEPTH       -   54 KM
 LOCATION    -  OFF COAST OF CENTRAL AMERICA
 MAGNITUDE   -  7.3

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    0526Z 27 AUG
                  PUERTO_QUEPOS       9.4N 275.8E    0553Z 27 AUG
                  CABO_MATAPALO       8.4N 276.7E    0555Z 27 AUG
 NICARAGUA        CORINTO            12.5N 272.8E    0532Z 27 AUG
                  PUERTO_SANDINO     12.2N 273.2E    0539Z 27 AUG
                  SAN_JUAN_DL_SUR    11.2N 274.1E    0551Z 27 AUG
 EL SALVADOR      ACAJUTLA           13.6N 270.2E    0543Z 27 AUG
 HONDURAS         AMAPALA            13.2N 272.4E    0556Z 27 AUG
 GUATEMALA        SIPICATE           13.9N 268.8E    0559Z 27 AUG
 PANAMA           PUNTA_BURICA        8.0N 277.1E    0605Z 27 AUG
                  PUNTA_MALA          7.5N 280.0E    0652Z 27 AUG
                  BALBOA_HTS.         9.0N 280.4E    0912Z 27 AUG
 MEXICO           PUERTO_MADERO      14.8N 267.5E    0606Z 27 AUG

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.

SOURCE: USGS

Strong Earthquake Strikes El Salvador Coast

  • quake el salvador.jpg

A strong earthquake has struck the El Salvador coast Sunday followed by a second 5.4 smaller quake. 

Authorities say there have been no reports of damage or injuries. A tsunami warning had been put into effect shortly after the first tremor struck at 10:37 p.m. Sunday, but it was later rescinded.

The quake hit about 86 miles (138 km) offshore at a depth of just over 20 km (12 miles), the U.S. Geological Survey said. It earlier gave the magnitude as 7.3.

A small tsunami hit the El Salvador port of Acajutla following the quake, the Pacific Tsunami Warning Center said.
The-7.3 magnitude earthquake struck off the coast of El Salvador followed an hour later by a magnitude-5.4 aftershock, authorities said early Monday. There were no immediate reports of damages or injuries.

A tsunami warning was put into effect for Costa Rica, Nicaragua, El Salvador, Honduras, Guatemala, Panama and Mexico after the quake struck at 10:37 p.m. Sunday. The warning was later rescinded.

David Walsh, an oceanographer with the Pacific Tsunami Center in Ewa Beach, Hawaii, said a minor, 10-centimeter (3.94-inche) tsunami was registered off Acajutla, El Salvador.

The quake was located 86 miles (138 kilometers) south-southwest of San Miguel, the U.S. Geological Survey reported on its web site. The temblor took place at a depth of 32.9 miles (53 kilometers). The second quake registered about an hour later in the same area at a depth of 35.9 miles (57.8 km).

Alfonso Lara, a technician with El Salvador's Civil Protection agency said authorities were alerted to the threat of a tsunami. "We are doing a general monitoring of the entire coast through our technicians and representatives," he said.

On Sunday, dozens of small to moderate earthquakes struck southeastern California, knocking trailer homes off their foundations and shattering windows in a small farming town east of San Diego. The largest quake registered at a magnitude 5.5 and was centered about three miles (five kilometers) northwest of the town of Brawley, according to the USGS. Another quake about an hour and a half earlier registered at magnitude 5.3. No injuries were reported.

Based on reporting by The Associated Press.


Read more: http://latino.foxnews.com/latino/news/2012/08/27/major-quake-hits-off-el-salvador/#ixzz24lDsw9G1


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