The San Andreas Fault is a continental right-lateral strike‑slip transform fault stretching roughly 1,200 km in California.

The number and size of Texas quakes increased dramatically around 2010 when well injection became the common disposal method.

A magnitude 2.7 earthquake was reported in the Los Angeles area on Tuesday afternoon and several residents said they felt ...

Impact: The 1933 earthquake was Southern California’s deadliest in the modern record, leaving nearly 120 dead and causing $40 ...

Santa Rosa City Schools campuses are being transformed this summer, but two campuses must undergo required earthquake studies ...

California is overdue for a devastating earthquake. Here are some tips if it hits A near-certain disaster looms for California, but there are real things people can do to prepare.

Wondering, “Was there an earthquake now?” Track the **latest earthquakes and aftershocks in California with this interactive map. Data is proudly provided by the U.S. Geological Survey … ...

The 2014 Napa, California earthquake is a good example of this phenomenon, said Rowe, noting that almost half of the slip measured after that event occurred slowly after the earthquake.

The 2014 Napa, California earthquake is a good example of this phenomenon, said Rowe, noting that almost half of the slip measured after that event occurred slowly after the earthquake.

Seismologists grow concerned when small quakes cluster near major faults, as they can signal a larger event—but often, they don't, Mark Benthien of the Southern California Earthquake Center said.

This map shows locations of earthquakes of magnitude 2.5 or larger. Red circles mark earthquakes from 1974-2002; green ones occurred before 1974.