The San Jacinto Fault, considered part of the San Andreas Fault system, has a 5% chance of magnitude 6.7 or larger earthquakes. The line begins at Cajun Pass and runs southeast through San Bernardino, ...

An eroded valley along the San Andreas Fault in Southern California. (Illustration: U.S. Geographical Survey) Scientists have detected definitive movement around the San Andreas Fault system in ...

For millions of Californians, the ground did not simply shake once and fall silent. It pulsed again and again over roughly ...

If you're from California, then you know that the possibility of the "big one" is ever-present and largely overdue (San Francisco even has an attraction where you can experience an earthquake safely ...

California's seismic risk is increasing with supershear earthquakes, which are faster and more destructive than typical ...

LONG BEACH, Calif. (KABC) -- During an earthquake study conference in Long Beach, a local expert said California's infamous San Andreas fault is due for a massive ...

Major quakes in Japan and Alaska along with a spate of smaller earthquakes in California this fall make folks ask, is the Big ...

An analysis of recent changes along earthquake faults in Southern California suggests there is an increased possibility of a major quake on the San Andreas Fault, researchers said Monday. The changes ...

The magnitude 4.7 earthquake Tuesday east of Monterey Bay hit on a unique section of the San Andreas fault that has long generated interest from scientists. The quake was felt across a wide area and ...