Wednesday, April 11, 2012
Massive 8.6 Earthquake Off Indonesia's Western Coast
A massive 8.6 strike-slip earthquake struck off of Indonesia's western coast Wednesday afternoon, triggering tsunami warnings for the entire Indian Ocean.
UPDATE: Tsunami Watch Lifted
A second large quake, with a magnitude of 8.2, occurred off the west coast of Sumatra about two hours later, the USGS said.
The initial quake was a strike-slip, not a thrust quake, according to experts. In a strike slip quake, the earth moves horizontally rather than vertically and doesn't displace large volumes of water.
The Pacific Tsunami Warning Center issued a tsunami watch for the entire Indian Ocean, and the Indonesian Meteorology, Climatology and Geophysics Agency said it had put up a tsunami warning as well.
Countries included in the tsunami warning included Indonesia, India, Sri Lanka, Australia, Burma, Thailand, the Maldives and other Indian Ocean islands, Malaysia, Pakistan, Somalia, Oman, Iran, Bangladesh, Kenya, South Africa and Singapore.
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