Northern California Rattled by Magnitude-6.0 Earthquake; Governor Declares Emergency.

An earthquake with a magnitude of 6.0 struck the San Francisco Bay area early Sunday, prompting California Gov. Jerry Brown to declare a state of emergency. The earthquake hit just before 3:30 a.m. Pacific time about 10 miles northwest of American Canyon, which is about six miles southwest of Napa, in California wine country, according to Leslie Gordon of the U.S. Geological Survey.
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