Great Earthquake

GREAT EARTHQUAKE

27 earthquakes monitored since 6:23PM Saturday.

MAG DATE UTC-TIME LAT LON DEPTH region
y/m/d h:m:s deg deg km

6.5 2004/12/26 09:20:01 8.867 92.382 10.0 NICOBAR ISLANDS, INDIA REGION
5.8 2004/12/26 07:38:25 13.119 93.052 10.0 ANDAMAN ISLANDS, INDIA REGION
5.7 2004/12/26 07:07:10 10.336 93.756 10.0 ANDAMAN ISLANDS, INDIA REGION
5.7 2004/12/26 06:21:58 10.623 92.323 10.0 ANDAMAN ISLANDS, INDIA REGION
7.3 2004/12/26 04:21:26 6.901 92.952 10.0 NICOBAR ISLANDS, INDIA REGION
6.1 2004/12/26 03:08:42 13.808 92.975 10.0 ANDAMAN ISLANDS, INDIA REGION
5.9 2004/12/26 02:59:12 3.177 94.259 10.0 OFF THE WEST COAST OF NORTHERN SUMATRA
6.0 2004/12/26 02:51:59 12.511 92.593 10.0 ANDAMAN ISLANDS, INDIA REGION
5.8 2004/12/26 02:36:06 12.139 93.010 10.0 ANDAMAN ISLANDS, INDIA REGION
5.8 2004/12/26 02:34:50 4.104 94.184 10.0 OFF THE WEST COAST OF NORTHERN SUMATRA
6.0 2004/12/26 02:22:02 8.860 92.500 10.0 NICOBAR ISLANDS, INDIA REGION
5.8 2004/12/26 02:15:58 12.375 92.509 10.0 ANDAMAN ISLANDS, INDIA REGION
5.9 2004/12/26 01:48:47 5.393 94.423 10.0 NORTHERN SUMATRA, INDONESIA
9.0 2004/12/26 00:58:51 3.298 95.779 10.0 OFF THE WEST COAST OF NORTHERN SUMATRA

Magnitude 9.0 - OFF THE WEST COAST OF NORTHERN SUMATRA

2004 December 26 00:58:50 UTC

Preliminary Earthquake ReportU.S. Geological Survey, National Earthquake Information CenterWorld Data Center for Seismology, Denver
A great earthquake occurred at 00:58:50 (UTC) on Sunday, December 26, 2004. The magnitude 9.0 event has been located OFF THE WEST COAST OF NORTHERN SUMATRA. (This event has been reviewed by a seismologist.)


Magnitude
9.0
Date-Time
Sunday, December 26, 2004 at 00:58:50 (UTC)= Coordinated Universal Time Sunday, December 26, 2004 at 6:58:50 AM = local time at epicenter Time of Earthquake in other Time Zones
Location
3.298°N, 95.779°E
Depth
10 km (6.2 miles) set by location program
Region
OFF THE WEST COAST OF NORTHERN SUMATRA
Distances
250 km (155 miles) SSE of Banda Aceh, Sumatra, Indonesia320 km (200 miles) W of Medan, Sumatra, Indonesia1260 km (780 miles) SSW of BANGKOK, Thailand1605 km (1000 miles) NW of JAKARTA, Java, Indonesia
Location Uncertainty
horizontal +/- 9.2 km (5.7 miles); depth fixed by location program
Parameters
Nst=157, Nph=157, Dmin=>999 km, Rmss=1.35 sec, Gp= 29°,M-type=moment magnitude (Mw), Version=9
Source
USGS NEIC (WDCS-D)
Event ID
usslav
Felt Reports
At least 9 people killed, buildings collapsed and telephone service disrupted at Banda Aceh. Many people killed by tsunamis in Sri Lanka and Thailand. Tsunamis also observed on the coasts of Maldives, Cocos Island and Sumatra. Felt widely in northern Sumatra. Also felt in Bangladesh, India, Malaysia, Myanmar, Singapore and Thailand. This is the fifth largest earthquake in the world since 1900 and is the largest since the 1964 Prince William Sound, Alaska earthquake.

WEPA43 PAAQ 260240
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 2
ISSUED 12/26/2004 AT 0209 UTC
...THIS TSUNAMI INFORMATION BULLETIN IS FOR ALASKA - BRITISH
COLUMBIA - WASHINGTON - OREGON AND CALIFORNIA ONLY...
NO - REPEAT NO - WATCH OR WARNING IS IN EFFECT.
Revised magnitude based on analysis of mantle waves. This earthquake
is located outside of the Pacific. No destructive tsunami threat exsits
for the Pacific basin based on historical earthquake and tsunami data.
EARTHQUAKE DATA

PRELIMINARY MAGNITUDE - 8.9

LOCATION - 3.4N 95.7E - OFF W COAST OF NORTHERN SUMATERA
TIME - 1559 AST 12/25/2004
1659 PST 12/25/2004
0059 UTC 12/26/2004
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. IN AREAS OF INTENSE
SHAKING LOCALLY GENERATED TSUNAMIS CAN BE TRIGGERED BY SLUMPING.
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.