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2 Earthquakes Centered Near Carquinez Bridge Rattle East Bay

MENLO PARK (CBS SF) -- A magnitude 3.7 earthquake struck shortly before noon Saturday near the Contra Costa County town of Crockett, according to the U.S. Geological Survey.

It was centered about 1 mile north of Crockett at a depth of roughly 6 miles.

It was followed a few minutes later by an aftershock with a magnitude of 2.7.

COMPLETE QUAKE COVERAGE: CBS Earthquake Resource Center

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