A 4.3 magnitude earthquake struck the Berkeley area early Monday morning, according to the United States Geological Survey. USGS geophysicist Sarah Minson provides details on a 4.3 magnitude earthquake that struck in the Berkeley area. Check the NBC Bay Area earthquake tracker for latest activity, including aftershocks here. BAY AREA QUAKE CENTRALYou can take steps to plan and prepare for the next big one. Access our Bay Area Quake Tracker, the latest earthquake stories, extensive quake prep checklists, videos and many other disaster preparedness resources all in one place: NBCBAYAREA.COM/QUAKESAre you prepared for the next big one?