A magnitude 2.8 earthquake hit about 2.5 miles southeast of Hercules, Calif. at about 6:30 Saturday, Oct. 23, 2021, followed by 2.1 magnitude two hours later. (Courtesy of U.S. Geological Survey)
A 2.8 magnitude earthquake struck in Contra Costa County early Saturday morning, according to the U.S. Geological Survey.
The quake hit at 6:34 a.m. and was centered about 2.5 miles southeast of Hercules at a depth of about 6 miles. A second 2.1 magnitude hit the same area approximately two hours later.
No reports of injuries or damage have been received.
No additional information is available at this time.
Last modified October 23, 2021 11:44 am
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