An earthquake with a preliminary magnitude of 3.7 struck in the Concord area on Sunday morning, according to the U.S. Geological Survey.The quake hit at 8:49 a.m. at a depth of 8.6 miles.

A magnitude 3.7 earthquake struck near Concord, California, on Sunday ... The USGS’s Community Internet Intensity Map showed reports from cities including Concord, Vallejo, Berkeley, and ...