Major Quake, Nicobar Islands

A magnitude seven earthquake struck India’s Nicobar Islands this morning.

Sunday 13th June 2010

A magnitude 7.5 earthquake struck 155 km west of Mohean in the Nicobar Islands at 7:27 this morning, New Zealand time. The quake, which was centred 440 km south-south-west of Port Blair in the Andaman Islands was 35 km deep according to the U.S. Geological Survey.

The Pacific Tsunami Warning centre initially assessed the quake as magnitude 7.6 and issued a tsunami watch for India, Indonesia, Sri Lanka, Myanmar, Thailand and Malaysia at 7:34 a.m. This was reduced to a tsunami watch for India only when the quake was revised to magnitude 7.5 at 8:18 a.m.

The tsunami watch was cancelled at 9:46 a.m. New Zealand time, when sea level readings indicated that a significant tsunami was not generated.

Geoscience Australia reports the quake as magnitude 7.7 at a depth of 0 km. It estimates that the quake would have caused damage within 200 km of the epicentre, which includes some of the Nicobar Islands, and would have been felt up to 2500 km away.

No significant aftershocks had been reported by 10:30 this morning.

The Pacific Tsunami Warning Centre website has removed the ability to get a plain text version of its tsunami warnings. Currently, the text is embedded in a webpage and the ability to print out a concise report of the situation is compromised. It is not clear whether this is a coding error or a conscious change.

[Compiled from data supplied by the U.S. Geological Survey and its contributing agencies, the U.S. National Oceanic & Atmospheric Administration’s Pacific Tsunami Warning Centre, and Geoscience Australia.]

One Response to “Major Quake, Nicobar Islands”

  1. Lizzie from Gizzie says:

    that’s one BIG shake, is there much there for damage? Thank goodness no tsunami.

Leave a Reply