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So there was a tsunami...but...

Tsunami experts could not understand why Monday's forceful earthquake off Indonesia failed to produce massive waves similar to those generated by the Dec. 26 quake that killed at least 175,000 people in the same region.

Center Director Charles McCreery said earthquakes of at least 8.0 magnitude usually generate major tsunamis."We expected some destructive tsunami with some distant destructive effects. It was surprising," he said. The latest event also demonstrated "there's a whole world of uncertainty about trying to judge a tsunami based on the earthquake data."


Rest of that here.

A major earthquake off the coast of northern Sumatra today caused a small tsunami on the Cocos Islands in the Indian Ocean, the US National Weather Service's Pacific Tsunami Warning Centre said.

Rest of that here.



BULLETIN NUMBER 3
ISSUED 03/28/2005 AT 2235 UTCWEPA43 PAAQ 282235
TIBWCA

TO - TSUNAMI WARNING SYSTEM PARTICIPANTS IN
ALASKA/BRITISH COLUMBIA/WASHINGTON/OREGON/CALIFORNIA
FROM - WEST COAST AND ALASKA TSUNAMI WARNING CENTER/NOAA/NWS
SUBJECT - TSUNAMI INFORMATION BULLETIN
BULLETIN NUMBER 3
ISSUED 03/28/2005 AT 2235 UTC

...THIS TSUNAMI INFORMATION BULLETIN IS FOR ALASKA - BRITISH
COLUMBIA - WASHINGTON - OREGON AND CALIFORNIA ONLY...

NO - REPEAT NO - WATCH OR WARNING IS IN EFFECT.

EARTHQUAKE DATA
PRELIMINARY MAGNITUDE - 8.5
LOCATION - 2.3N 97.1E - NORTHERN SUMATERA, INDONESIA
TIME - 0711 AST 03/28/2005
0811 PST 03/28/2005
1611 UTC 03/28/2005

THE TSUNAMI HAS BEEN OBSERVED AT THE FOLLOWING SITES
GAN 0.7N 73.2E 5CM / 0.16FT
MALE 4.2N 73.5E 9CM / 0.3FT
HANIMAADHOO 6.8N 73.2E 20CM / 0.66 FT
COCOS IS (NO LAT / LON) 23CM / 0.75FT


EVALUATION
BASED ON LOCATION AND MAGNITUDE THE EARTHQUAKE WAS NOT
SUFFICIENT TO GENERATE A TSUNAMI DAMAGING TO CALIFORNIA -
OREGON - WASHINGTON - BRITISH COLUMBIA OR ALASKA. SOME AREAS MAY
EXPERIENCE SMALL SEA LEVEL CHANGES.

THE PACIFIC TSUNAMI WARNING CENTER WILL ISSUE TSUNAMI BULLETINS
FOR HAWAII AND OTHER AREAS OF THE PACIFIC.

THIS WILL BE THE ONLY BULLETIN ISSUED FOR THIS EVENT BY THE
WEST COAST AND ALASKA TSUNAMI WARNING CENTER UNLESS CONDITIONS
WARRANT. REFER TO THE INTERNET SITE HTTP://WCATWC.ARH.NOAA.GOV
FOR MORE INFORMATION.


Thank god it wasn't a Dec 26 repeat...

Comments

popcorn09
Mar. 29th, 2005 04:55 am (UTC)
Thank God indeed!

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