California is riddled with a number of fault lines that frequently cause earthquakes, including Arrowhead, Waterman Canyon, ...

A series of small earthquakes shook the San Francisco Bay Area on Thursday, according to the United States Geological Survey.

A third earthquake struck California in less than six hours, this one rocking the city of Hayward near San Francisco and San ...

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 ...

Change in voltage −1 −3 −5 −10 −30 About three seconds later, another major fault was registered ... other places across Southern California. But the faults had been so substantial ...

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 ...