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Current time: 2014-04-17 04:18:50 UTC
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Mw 8.6 earthquake in Sumatra on March 28th, 2005 at 16:09 UTC

On March 28, at 16:09 UTC an earthquake with a preliminary magnitude of 8.6 struck Northern Sumatra. A magnitude 8.6 earthquake generates a rupture length of typically 500 kilometers and a displacement of several meters. Although it is a massive earthquake, the energy released is 10-15 times smaller than during the December 26th, 2004 event.

The epicentre is located approximately 200km SE of the December 26th 2004 epicentre. This event has generated a moderate tsunami much less destructive than the one generated by the December 26th event. Locally, wave have been estimated up to 4-5 meters and amplitude up to 2m have been recorded. In the Indian Ocean, amplitudes have been measured up to 50 cm. The aftershock activity is expected to last several weeks.

Waves measuring a maximum height of 2.3 meters (7.6 feet) were recorded in seas near Kirinda in southern Sri Lanka. Smaller waves up to 0.5 meters (1.65 feet) tall also brushed the coastline in the capital Colombo on the west coast of the island. The waves were recorded at both locations approximately three hours after the earthquake.

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