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

The strongest was a 3.4 magnitude quake that struck near San Bernardino, with more than 500 people feeling the quake.

Parts of the Southern California coastal community of Rancho Palos Verdes were shifting 4 inches closer to the ocean each week in mid-to-late 2024, NASA found.

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

The largest fires started on January 7 and devastated swathes of L.A., including Pacific Palisades and Altadena. The fires ...