Earthquakes Today: According to sources, small jolts were felt around the northern California area, but scientists say though it was nerve racking, it was also common and routine. This is the latest news update that a 4.1 magnitude earthquake hit San Francisco, California today. Market Crawl Earthquake San Francisco including Bay Area felt more horror news. The small tremor was 10.4 km (6.5 miles) deep, according to USGS. Today’s California earthquake’s epicenter was 13 miles southeast of San Jose’s City Hall. Today’s California earthquake occurred at 4:10 p.m. on Friday, within a patch of rocks deep underground near the Calaveras Fault in a remote oak-studded landscape. USGS seismologist David Oppenheimer, based in Menlo Park, said, “It’s not unusual for the Calaveras to have magnitude 4 quakes, which may knock things off shelves but are unlikely to cause any structural hurt”.