San Andreas Fault

geographical name
San An·​dre·​as Fault | \ ˌsan-an-ˈdrā-əs How to pronounce San Andreas Fault (audio) \

Definition of San Andreas Fault

zone of geologic faults in California extending from the northern coast toward the head of the Gulf of California

Note: Movement along part of the San Andreas Fault has frequently been the cause of earthquakes in the region, including the San Francisco earthquake of 1906.