Magnitude 4.0 earthquake jolts San Francisco Bay Area

The San Francisco Bay Area was rattled by a 4.0 magnitude earthquake on Monday morning, the United States Geological Survey reported, although there were no immediate reports of major damage or injuries.

The earthquake, near Piedmont some 13 miles east of San Francisco around 7 a.m. local time, according to the USGS. The quake produced several seconds of moderate shaking in neighboring Oakland, according to a Reuters witness.

The Oakland Police Department said on its Twitter account that calls had flooded in after the tremor, but no one was reported to have been hurt or injured.

Officials in nearby Berkeley also said there were no immediate reports of damage or injuries.