YouTube@NBC Bay Area
At least 13 earthquakes have hit the Bay Area this morning. The largest was a magnitude 4.2 near San Ramon at about 7 a.m. A map from the U.S. Geological Survey shows the earthquake sent seismic waves past Sacramento, Stockton and Modesto. The earthquake swarm started at 6:27 a.m., with a magnitude three-point-nine tremor. The latest earthquake was at 7:36 a.m. There are no reports of injuries or damage.
