A light, 4.1-magnitude earthquake struck in Southern California on Sunday, according to the United States Geological Survey.

The United States hasn't been able to catch a break this week when it comes to earthquakes, that's for sure. Two earthquakes ...

A map has shown an underwater fault line ... earthquake far worse than the "Big One" which hit California. The 600-mile fault ...

Cal Fire released its new fire hazard severity maps, including for Sacramento, detailing which areas are at high risk of ...

California is overdue for a major earthquake ... 2015 to drill new wastewater wells or rework existing ones near faults in Los Angeles, Santa Barbara, Kern and other counties (see map below). A Center ...

Multiple tremors were recorded by the USGS over the past week, including one which struck as the Oscars ceremony was underway.

Cities with the most hazardous acres of very high fire hazard include Moorpark, Simi Valley, and Thousand Oaks, and the "very high" hazard acreage in Ojai more than tripled. Unincorporated land in ...

So when researchers detected strange seismic activity along a major California fault line this week, it prompted a familiar question: Is the Big One coming? On Thursday, scientists released a ...