Southern California Earthquake Data Center

Significant Earthquakes and Faults

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Fault Name Index

Old Woman Springs Fault and Silver Reef Fault

Type of Faulting: right-lateral strike-slip, with some vertical slip
Length: roughly 10 km
Nearest Communities: Big Bear, Lucerne Valley
Most Recent Major Rupture: Holocene
Other Notes: The Old Woman Springs fault is the main trace in a fairly complex system of faulting which interacts, most likely, with both the North Frontal fault zone and the Lenwood fault. The Silver Reef fault is part of this same system of faults, and the two sometimes "overlap" in nomenclature.



This fault is featured on the following map:
Mojave Fault Map