Tremors near south San Andreas could point to major quake danger

July 11, 2009

(ChattahBox) — An increase in tremors on a section of California’s San Andreas Fault that produced a magnitude-7.8 earthquake in 1857, may be the harbinger of another major earthquake, according to a study out Friday in the journal Science. Unlike earthquakes, tremors occur deeper below the surface and the shaking lasts much longer.  Scientists still do not fully understand the relationship between tremors and quakes but seismologist Robert Nadeau of the University of California at Berkeley reached his conclusions after analyzing tremors along a segment of the San Andreas Fault near Parkfield, California.

The San Andreas fault runs along much of the state of California, through the most populous areas in the United States. The researchers believe that the increase in tremors could mean that stress is accumulating faster than in the past along that segment of the fault.  More tremors probably means more stress on the fault, Nadeau said, and that suggests “an increased probability of an earthquake coming sooner rather than later.”  Seismologists already predict there is a 70 percent probability that a devastating earthquake will strike California in the next 30 years.


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One Response to “Tremors near south San Andreas could point to major quake danger”

  1. california earthquakes today | ArticleLux on July 11th, 2009 12:51 pm

    […] Tremors near south San Andreas could point to major quake danger …(ChattahBox) — An increase in tremors on a section of California’s San Andreas Fault that produced a magnitude-7.8 earthquake in 1857, may be the harbinger of.Read More […]

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