Friday, November 20, 2009

New Tsunami GPS Use Makes Waves

Published Friday, December 01, 2006

University researchers are using GPS to almost instantly determine whether an earthquake is big enough to generate an oceanwide tsunami. A team at the University of Nevada's Bureau of Mines and Geology and Seismological Laboratory and Northwestern University in Evanston, Ill., recently demonstrated that a large quake's true size can be determined within 15 minutes using GPS data. “We need to know immediately whether the earthquake is giant enough to produce a huge tsunami,” said Northwestern geologist Seth Stein. Warning centers have only a few minutes to decide whether to issue alerts so emergency response authorities in affected ...

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