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

Areas scarred by the Eaton Fire are at “high to very high risk” of debris flows this week. How do they happen? What is being ...