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Magnitude 8.0 near Tonga: tsunami potential

Get free weekly news by e-mail16.30 GMT Stop-press: an earthquake which has just occurred NE of Tonga presents a wide-area tsunami risk, although no initial reports indicate that this has happened.

The following is a release by the United States Geological Survey, National Earthquake Information Center:

"A great earthquake occurred about 160 km (100 miles) NE of NUKU'ALOFA, Tonga at 9:26 AM MDT, May 3, 2006 (May 04 at 4:26 AM local time in Tonga). The magnitude and location may be revised when additional data and further analysis results are available. No reports of damage or casualties have been received at this time; however, this earthquake may have caused damage due to its location and size. Earthquakes of this type sometimes cause tsunamis, however the USGS has no information that an actual tsunami has been generated."

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LINKS:

Real time information from U.S. Geological Survey, National Earthquake Information Center

NOAA Pacific Tsunami Warning Center: latest bulletins

UPDATE: 18.35 GMT
The Pacific Basin Tsunami Warning has been lifted: more info

UPDATE: 16.45 GMT
Pacific Basin Tsunami Warning (verbatim)

TSUNAMI BULLETIN NUMBER 002 PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS ISSUED AT 1631Z 03 MAY 2006  

THIS BULLETIN IS FOR ALL AREAS OF THE PACIFIC BASIN EXCEPT ALASKA - BRITISH COLUMBIA - WASHINGTON - OREGON - CALIFORNIA.   ... A TSUNAMI WARNING IS IN EFFECT ...  

A TSUNAMI WARNING IS IN EFFECT FOR   TONGA / NIUE / AMERICAN SAMOA / SAMOA / WALLIS-FUTUNA / FIJI   FOR ALL OTHER PACIFIC AREAS, THIS MESSAGE IS AN ADVISORY ONLY.  

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS   ORIGIN TIME - 1527Z 03 MAY 2006 COORDINATES - 19.9 SOUTH 174.2 WEST LOCATION - TONGA ISLANDS MAGNITUDE - 7.8   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 CONTINUE TO 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. ACTUAL ARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE LARGEST. THE TIME BETWEEN SUCCESSIVE TSUNAMI WAVES CAN BE FIVE MINUTES TO ONE HOUR. 

{For locations and potential arrival times see:http://www.prh.noaa.gov/ptwc/wmsg }

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 BULLETINS FOR ALASKA - BRITISH COLUMBIA - WASHINGTON - OREGON - CALIFORNIA.

•Date: 3rd May 2006• Region: Various • Type: Article •Topic: Warnings
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