An earthquake with a preliminary magnitude of 3.1 shook the East Bay on Thursday morning, according to the United States Geological Survey. The quake, which struck at 9:23 a.m., had an epicenter just below UC Berkeley’s Lawrence Berkeley National Laboratory and above California Memorial Stadium.
The depth was approximately 5.8 miles, according to USGS. Weak to light shaking was felt in Berkeley, San Francisco, Oakland, Concord, Hayward, Fremont, Santa Rosa and San Rafael, according to USGS’ Did You Feel It? report.
The earthquake comes on the same day as the Great California ShakeOut, the state’s annual earthquake drill, and just several weeks after a series of moderate earthquakes jolted the Bay Area, also with an epicenter near UC Berkeley…