Magnitude 4.1 earthquake jolts Bay Area

A closeup of a seismograph machine needle drawing a red line.
A closeup of a seismograph machine needle drawing a red line. Photo credit Getty Images

SAN FRANCISCO (KCBS RADIO) – An magnitude 4.1 earthquake struck the East Bay and was felt across the Bay Area early Thursday, officials said.

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Several smaller earthquakes struck the area over the next hour.

The earthquake hit at 5:07 a.m. and was centered roughly four miles north-northwest of Bay Point and just west of Pittsburg and Antioch. The shaking came at a depth of just over 12 miles, according to data provided by the U.S. Geological Survey. It was followed by at least six earthquakes measured at 5:14 a.m., 5:42 a.m., 6:14 a.m., 6:16 a.m., 6:22 a.m. in virtually the same spot near and in Suisun Bay.

The largest of those was a magnitude 2.2 earthquake.

KCBS Radio's Bob Butler, who lives in Antioch, was asleep when it struck." All of a sudden my wife screamed and the bed shook and I thought it was her shaking the bed. But no, it was an earthquake," Butler said.

KCBS Radio received calls about shaking felt in in Vallejo, Antioch and across the East Bay to Marin County and San Francisco.

There are no reports of any injuries or damage.

The earthquake did prompt BART officials to conduct track inspections and warn of the potential for residual delays systemwide of about 20 minutes.

This is a developing story. Check back for updates.

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Featured Image Photo Credit: Getty Images