San Andreas Fault photograph

San Andreas Fault

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Length1,200 km (750 mi)
Cities San Francisco
San Bernardino
PlateAmerican
Earthquakes1857, 1906 (Mw ≈7. 8), 1957 (Mw 5. 7), 1989 (Mw ≈6. 9), 2004
OrogeniesGorda
Nevada
Did you knowThe San Andreas Fault was discovered in 1895 by a UC Berkley professor named Andrew Lawson.
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Date of Upd.
ID876414
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About San Andreas Fault


The San Andreas Fault is a continental transform fault that extends roughly 1,200 kilometers through California. It forms the tectonic boundary between the Pacific Plate and the North American Plate, and its motion is right-lateral strike-slip.

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