noun
a major geological fault in California; runs from San Diego to San Francisco; the source of serious earthquakes
• Part Holonyms: ↑California, ↑Golden State, ↑CA, ↑Calif.
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San Andreas Fault [San Andreas Fault]
a break in the layers of rock forming the earth’s surface that runs about 600 miles north to south through the US state of ↑California. It causes ↑earthquakes, such as those in ↑San Francisco (1906 and 1989) and ↑Los Angeles (1994).
Useful english dictionary. 2012.