Says Reuters:

"The question is not if but when Southern California will be hit by a major earthquake -- one so damaging that it will permanently change lives and livelihoods in the region," according to a 2008 study by the United States Geological Survey study. It predicted 2,000 deaths and $200 billion in damage from a 7.8 southern California quake on the San Andreas Fault...

Forecasters in 2008 saw a 99 percent chance of a 6.7 magnitude quake within three decades, and 46 percent chance of a 7.5 or greater, with Southern California the likely center.

 

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