Magnitude 7.0 - KEPULAUAN MENTAWAI REGION, INDONESIA
2009 August 16 07:38:26 UTC
Earthquake Details
| Magnitude | 7.0 |
|---|---|
| Date-Time |
|
| Location | 1.409°S, 99.494°E |
| Depth | 50.8 km (31.6 miles) |
| Region | KEPULAUAN MENTAWAI REGION, INDONESIA |
| Distances | 110 km (65 miles) WSW of Padang, Sumatra, Indonesia 305 km (190 miles) SW of Pekanbaru, Sumatra, Indonesia 560 km (345 miles) SSW of KUALA LUMPUR, Malaysia 960 km (600 miles) WNW of JAKARTA, Java, Indonesia |
| Location Uncertainty | horizontal +/- 7.5 km (4.7 miles); depth +/- 13.9 km (8.6 miles) |
| Parameters | NST= 54, Nph= 54, Dmin=683.7 km, Rmss=1.03 sec, Gp= 40°, M-type=teleseismic moment magnitude (Mw), Version=7 |
| Source |
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| Event ID | us2009kjak |
- This event has been reviewed by a seismologist.
RSOE EDIS
| Airport: |
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| Volcanoes: |
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| The potential impact of the earthquake | |||||||||||||||||||||
| Well-built buildings suffer considerable damage. Houses that are not bolted down move off their foundations. Some underground pipes are broken. The ground cracks. Reservoirs suffer serious damage. | |||||||||||||||||||||
TSUNAMI BULLETIN NUMBER 001
http://www.prh.noaa.gov/ptwc/messages/indian/2009/indian.2009.08.16.074938.txt
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 0749Z 16 AUG 2009
THIS BULLETIN IS FOR ALL AREAS OF THE INDIAN OCEAN.
... TSUNAMI INFORMATION BULLETIN ...
THIS MESSAGE 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 - 0738Z 16 AUG 2009
COORDINATES - 1.6 SOUTH 99.4 EAST
LOCATION - SOUTHERN SUMATRA INDONESIA
MAGNITUDE - 6.9
EVALUATION
A DESTRUCTIVE WIDESPREAD TSUNAMI THREAT DOES NOT EXIST BASED ON
HISTORICAL EARTHQUAKE AND TSUNAMI DATA.
HOWEVER - THERE IS A VERY SMALL POSSIBILITY OF A LOCAL TSUNAMI
THAT COULD AFFECT COASTS LOCATED USUALLY NO MORE THAN A HUNDRED
KILOMETERS FROM THE EARTHQUAKE EPICENTER. AUTHORITIES IN THE
REGION NEAR THE EPICENTER SHOULD BE MADE AWARE OF THIS
POSSIBILITY.
THIS WILL BE THE ONLY BULLETIN ISSUED BY THE PACIFIC TSUNAMI
WARNING CENTER FOR THIS EVENT UNLESS ADDITIONAL INFORMATION
BECOMES AVAILABLE.
THE JAPAN METEOROLOGICAL AGENCY MAY ISSUE ADDITIONAL INFORMATION
FOR THIS EVENT. IN THE CASE OF CONFLICTING INFORMATION...THE
MORE CONSERVATIVE INFORMATION SHOULD BE USED FOR SAFETY.
