2010 Indonesia Earthquake
Mentawai Islands, Indonesia — October 25, 2010
The 2010 Mentawai earthquake generated a tsunami that killed 431 people on the remote Mentawai Islands. The event is classified as a "tsunami earthquake" — a rare type where tsunami amplitude is disproportionately large relative to the earthquake magnitude, catching residents off guard.
Earthquake Facts
Magnitude
M7.7
Date
Oct 25, 2010
Depth
20.6 km
Deaths
431
Latitude
-3.484°
Longitude
100.114°
Tsunami
Yes
Region
Indonesia
Tectonic Cause
Slow-rupturing thrust earthquake on the Sunda megathrust interface in the Mentawai seismic gap. Tsunami earthquakes tend to occur where older, colder oceanic crust subducts slowly.
Sources & Further Reading
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