San Andreas Fault
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San An·dre·as Fault(săn ăn-drā′əs)
A major zone of fractures in the earth's crust extending along the coastline of California from the northwest part of the state to the Gulf of California. Movement of the tectonic plates along the fault has caused numerous tremors, including the devastating San Francisco earthquake of 1906.
San′ An•dre′as fault′(ˈsæn ænˈdreɪ əs)
an active geological fault in the western U.S., extending from San Francisco to S California.
[after San Andreas Lake, located in the rift, in San Mateo County]