| The extent of each of three major earthquakes on the San Andreas fault is shown on the map above. Few Californians have experienced a major San Andreas earthquake. In Northern California, the last major earthquake was 100 years ago in 1906. In Southern California, the last major earthquake on the San Andreas fault was 150 years ago (1857). Further south along the San Andreas fault, from San Bernardino through the Coachella Valley to the Salton Sea, over 300 years have passed since the last major earthquake (around 1690). |