A preliminary 3.9 magnitude earthquake struck at 6:29 p.m. Monday near San Leandro, according to the United States Geological Survey.
The temblor, initially reported by the USGS as a magnitude 4.1, was felt across the Bay Area.
It was centered 2.1 miles north of San Lorenzo, 2.2 miles west-northwest of Castro Valley and 2.2 miles east-southeast of San Leandro, the USGS said.
No other information was immediately available. Updates to come.
Source: NBC Bay Area