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Small Earthquake Hits Eastern Contra Costa County

BRENTWOOD (BCN) - An earthquake with a preliminary magnitude of 2.8 struck in unincorporated Contra Costa County east of Mount Diablo Friday morning, according to the U.S. Geological Survey.

The quake struck at 7:43 a.m. and had a depth of 8.3 miles, USGS officials said.

The quake was centered in Round Valley Regional Park, about 7 miles south-southwest of Brentwood and 7 miles west-southwest of Byron, according to the USGS.

(© 2011 CBS Broadcasting Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Bay City News contributed to this report.)

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