The quake was centered in Concord and hit at 11:18 a.m., according to the U.S. Geological Survey.
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According to ABC7 Meteorologist Mike Nicco, the earthquake was centered under Todos Santos Plaza, near the intersection of Willow Pass Road in Concord.
He says a 3.8 quake can cause minor damage near the epicenter.
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On the USGS scale, this quake is considered "minor to light," with more than 10,000 earthquakes like this happening per year.
Check back for updates on this developing story
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