Monday, December 27, 2004

Geology lesson 

From the LA Times (naturally):

The magnitude 9.0 earthquake that struck off Indonesia on Sunday morning moved the entire island of Sumatra about 100 feet to the southwest, pushing up a gigantic mass of water that collapsed into a tsunami and devastated shorelines around the Indian Ocean and the South China Sea.

The quake was the largest since a magnitude 9.2 temblor struck Prince William Sound, Alaska, in 1964 and was one of the biggest ever recorded by scientists. It triggered the first tsunami in the Indian Ocean since 1883, civil engineer Costas Synolakis of USC said.

Sunday's temblor, which occurred off Sumatra's northwestern tip in an active geological region, ruptured an estimated 600-mile-long stretch of the Earth beneath the Indian Ocean. The quake caused one side of the fault to slide past the other, much like seismologists expect the San Andreas fault to do when the "Big One" hits California.
(via LA Times)

Moved an entire island 100 feet... Yikes...

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