The quake was centered in Concord and hit at 11:18 a.m., according to the U.S. Geological Survey.
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.
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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