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Tuesday, August 08, 2006

Satellite Data Show Gravity Change from 2004 Sumatra Earthquake

Scientists funded by NASA, the U.S. National Science Foundation and the Ohio Supercomputer Center have used satellite data for the first time to detect changes in the Earth's surface caused by a massive earthquake.

The discovery signifies a new use for the data from NASA's two gravity recovery and climate experiment (GRACE) satellites and might offer a new approach to understanding how earthquakes work, according to an August 3 press release from Ohio State University (OSU).

“The earthquake changed the gravity in that part of the world in two ways that we were able to detect,” said Shin-Chan Han, a research scientist in the OSU School of Earth Sciences.

Also See: International Partners Shape Indian Ocean Warning System

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