Categorized | Earthquake, News

Strong 6.4M quake strikes Tonga Saturday (April 28), no tsunami threat

Magnitude
6.4
Date-Time
Saturday, April 28, 2012 at 10:08:07 UTC
Saturday, April 28, 2012 at 11:08:07 PM at epicenter
Saturday, April 27, 2012 at 12:08:07 AM HST (Hawaii Standard Time)
Location
18.643°S, 174.725°W
Depth
129.4 km (80.4 miles)
Region
TONGA
Distances
78 km (49 miles) W (270°) from Neiafu, Tonga
284 km (176 miles) N (11°) from NUKU’ALOFA, Tonga
2660 km (1653 miles) W (263°) from PAPEETE, Tahiti, French Polynesia

TSUNAMI BULLETIN NUMBER 001
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 1015Z 28 APR 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 – 1008Z 28 APR 2012
COORDINATES – 18.7 SOUTH 174.4 WEST
DEPTH – 118 KM
LOCATION – TONGA ISLANDS
MAGNITUDE – 6.7

EVALUATION

A DESTRUCTIVE TSUNAMI WAS NOT GENERATED BASED ON EARTHQUAKE AND HISTORICAL TSUNAMI DATA.

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.

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