A magnitude 4.0 earthquake was reported Monday morning in Piedmont, Calif., near Oakland, according to the U.S. Geological Survey.
The temblor occurred at 6:49 a.m. Pacific time at a depth of 3.1 miles.
According to the USGS, the epicenter was two miles from Emeryville, Calif., three miles from Oakland, three miles from Berkeley and 64 miles from Sacramento.
The quake was felt most strongly in the East Bay, including Oakland, Berkeley and surrounding areas. Lesser shaking was felt in San Francisco.