WASHINGTON (Reuters) - Low-pitched rumbles from deep under California's San Andreas fault may offer a way to predict future earthquakes, U.S. geologists said on Thursday.
They said they were recording continuous tremors that sounded almost like "chatter" from deep beneath the surface and much deeper than most quakes. Some began just before a relatively large quake last September, they report in this week's issue of the journal Science.
"This is new information from an area deep down under the fault we have not been able to look at before," said Robert Nadeau, a seismologist at the Berkeley Seismological Laboratory at the University of California.
"If these tremors are precursory to earthquakes, there is potential here for earthquake forecasting and prediction."
http://news.yahoo.com/news?tmpl=story&u=/nm/20041209/sc_nm/science_quakes_dc
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