Below California’s famed beaches, mountains and metropolitan areas lies a sinister web of earthquake faults — some so infamous that their names are burned into the state’s collective ...

The last major earthquakes on the San Andreas fault were in 1857 and 1906. The Fort Tejon earthquake of 1857 was a 7.9 magnitude, which caused ground fissures in the Los Angeles, Santa Ana and ...

California was rocked by a seventh earthquake in less than 24 hours. More than half of the events hit along the San Andreas fault, ... Santa Ana and Santa Clara Rivers.

The earthquake is likely to be followed by many smaller aftershocks. The 190-mile long strike-slip fault extends from near the Mexican border to the northern end of the Santa Ana mountains near ...

Monday's 5.2 magnitude temblor marked another success for California's early earthquake warning system, with users in some areas saying they got notifications on their phone before they felt shaking.