Public Bulletin in Detail

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Magnitude
Origin Time : 2012-04-11 08:38:00 UTC
Location : 2.33N - 93.04E (Off West Coast of Northern Sumatra)
Depth : 10 Km
Bulletin : 4 (FINAL TSUNAMI BULLETIN)



RTSP-InaTEWS-20120411-1906-04
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TSUNAMI BULLETIN NUMBER 4 (TYPE-IV)
REGIONAL TSUNAMI SERVICE PROVIDER - RTSP INDONESIA (InaTEWS-BMKG)
issued at 1906 UTC, Wednesday, 11 April 2012
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... FINAL TSUNAMI BULLETIN FOR THE INDIAN OCEAN ...

1. EARTHQUAKE INFORMATION
RTSP INDONESIA has detected an earthquake with the following FINAL
information:

Magnitude  : 8.3 Mwp
Depth      : 10km
Date       : 11 Apr 2012
Origin Time: 08:38:00 UTC
Latitude   : 2.33N
Longitude  : 93.04E
Location   : Off West Coast of Northern Sumatra

2. EVALUATION
 

The expected period of significant tsunami waves is now over for all threatened
Indian Ocean countries, based on RTSP INDONESIA modelling.

Because local conditions can cause a wide variation in tsunami wave action,
CANCELLATION of national warnings and ALL CLEAR determination must be made by
national/state/local authorities. Please be aware that dangerous currents can
continue for several hours after the main tsunami waves have passed.

3. TSUNAMI WAVE OBSERVATIONS
Listed below are maximum wave amplitudes recorded at the specified locations.
Note that wave amplitude is measured relative to normal sea level; it is NOT
the crest-to-trough wave height.

LOCATION            COUNTRIES     LAT    LON      AMPL(m) TIME(UTC) DATE 
------------------------------------------------------------------------------
Sabang              INDONESIA     05.80N  95.00E  0.06   10:00   Apr 11, 2012
Meulaboh            INDONESIA     04.32N  96.22E  0.8    10:04   Apr 11, 2012
------------------------------------------------------------------------------

4. ADVICE
This bulletin is being issued as advice. Only national/state/local authorities
and disaster management officers have the authority to make decisions regarding
the official threat and warning status in their coastal areas and any action to
be taken in response.

5. UPDATES
Additional bulletins will be issued by RTSP INDONESIA for this event as more
information becomes available.

Other RTSPs may issue additional information at:
RTSP AUSTRALIA:  http://reg.bom.gov.au/tsunami/rtsp/
RTSP INDIA:      http://www.incois.gov.in/Incois/tsunami/eqevents.jsp

In case of conflicting information from RTSPs or the IAS (PTWC, JMA), the more
conservative information should be used for safety.

6. CONTACT INFORMATION
METEOROLOGICAL CLIMATOLOGICAL AND GEOPHYSICAL AGENCY (BMKG)
InaTEWS - Indonesian Tsunami Early Warning System
Address: Jl. Angkasa I no.2 Kemayoran, Jakarta, Indonesia, 10720
Tel.: +62 (21) 4246321/6546316
Fax: +62 (21) 6546316/4246703
P.O. Box 3540 Jakarta
Website:  http://rtsp.bmkg.go.id/publicbull.php
          http://www.bmkg.go.id 
          http://inatews.bmkg.go.id
E-Mail:   inartsp@bmkg.go.id
          monitrtwp@bmkg.go.id              

END OF BULLETIN
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