Earthquakes 12 hours ago Preliminary 5.3 magnitude earthquake strikes Northern California A preliminary 5.3 magnitude earthquake struck Northern California on Saturday night, according to the United States Geological Survey. US & World Videos 2:59 Forecast: Storm exists 3:03 San Francisco sees first ever tornado warning; region faces storm damage 6:03 Tornado touches down in Santa Cruz County, several injured 2:32 Understanding how a tornado hit Scotts Valley 3:09 Storm generates rare tornado warning in San Francisco, part of San Mateo County
