Southern California Earthquake Data Center

Significant Earthquakes and Faults

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Fault Name Index

Santa Cruz - Santa Catalina Ridge Fault Zone

Type of Faulting: right-lateral strike-slip; also right-reverse (?)
Length: 60 km (seismically active portion)
Nearest Communities: Always more than 30 km from mainland
Most Recent Surface Rupture: Holocene, in part; otherwise Quaternary
Slip Rate: unknown
Interval Between Major Ruptures: unknown
Probable Magnitudes: MW6.5 - 7.3 (?)
Other Notes: This fault zone is probably much longer than the 60-kilometer seismically-active portion, and may in fact extend far to the south, to link up with the San Diego Trough fault zone, making it over 150 kilometers long.



This fault is featured on the following maps:
Northwest Fault Map
Los Angeles Fault Map