2004 Sumatra-Andaman earthquake

The undersea rupture began at 00:58:53 UTC, 07:58:53 local time, on 26 December 2004, with its epicentre off the west coast of Sumatra, and broke a 1,600 km portion of the boundary between the Indo-Australian and southeastern Eurasian plates. Fault slip of up to 15 metres occurred near Banda Aceh, while rapid slip north along the Nicobar and Andaman Islands was much smaller; tsunami and geodetic observations indicate additional slow slip in the north over 50 minutes or longer. Moment magnitude estimates differ, given as 9.1 to 9.3.

Origin time (UTC)

2004-12-26T00:58

Magnitude

9.1

Magnitude type

mw

Depth (km)

30

Deaths, as sources state them

229,866

USGS event page

earthquake.usgs.gov/earthquakes/eventpage/official20041226005853450_30

Category: Disasters & Incidents

Tags: megathrust, tsunami, indian-ocean, sumatra, andaman

Coordinates: 3.295, 95.982

Part of Earthquakes of magnitude 8.5 and above since 1900

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