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    50 New Faults Found in Calif



    Posts : 29
    Join date : 2010-02-18
    Location : N. Calif.

    50 New Faults Found in Calif

    Post  quaker on Fri 30 Apr 2010, 1:59 pm

    April 28, 2010
    By Hector Becerra
    Los Angeles Times

    More than 50 new surface earthquake faults have been discovered in California over the last two decades, according to a new state map that officials hope will help guide future development decisions and emergency planning.

    The state's fault activity map, produced by the California Geological Survey, is the first in 16 years and offers a sober reminder of California's quake risks.

    The new faults range from small ones that don't pose much threat for major temblors to very large ones, like that responsible for the 7.1 Hector Mine earthquake that shook Southern California in 1999.

    Most of the faults have been known to researchers, and information on them is contained in scientific files. But state officials and quake experts hope that putting all the faults on one map will educate the state about quake risk zones and help residents grasp the geography of the fault lines.

    "I think every classroom in California should have these maps on the wall," said Caltech seismologist Lucy Jones. "I don't think we do enough to educate the general public about these features. We turn it into something for the specialists, as if science is only for scientists. But if you're going to buy a house, would you like to know what fault is under your house?"

    About 50 new faults might not seem like a lot in a state with thousands of them. But experts say the new maps point to a basic fact of seismology: The more scientists study quakes in California, the more faults — and dangers — they find.

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