The Raymond Fault is a fault across central

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and western Ventura County in Southern California.

San Gabriel Valley area

The eastern end of the Raymond Fault branches from the San Andreas Fault in the

San Gabriel Mountains The San Gabriel Mountains ( es, Sierra de San Gabriel) are a mountain range located in northern Los Angeles County, California, Los Angeles County and western San Bernardino County, California, United States. The mountain range is part of the Tr ...

where it forms the east fork of the San Gabriel River and Monrovia Canyon. The fault is very straight and follows a

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path. It then goes straight west through

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and the Santa Anita Racetrack in the

San Gabriel Valley The San Gabriel Valley ( es, Valle de San Gabriel) is one of the principal valleys of Southern California, lying immediately to the east of the eastern city limits of the city of Los Angeles, and occupying the vast majority of the eastern part ...

, and then forms the San Rafael Hills in San Marino and South Pasadena, and Raymond Hill after which the fault is named.

Los Angeles–Ventura areas

The fault continues west to form the hills of Highland Park, the lower eastern Santa Monica Mountains from Dodger Stadium, Silver Lake, and Griffith Park through the Hollywood Hills above the

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and Studio City. Further west the Raymond Fault creates the higher central and western Santa Monica Mountains from Beverly Hills and along the southern

San Fernando Valley The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, California. Located to the north of the Los Angeles Basin, it contains a large portion of the City of Los Angeles, as well as unincorporated ar ...

to Thousand Oaks and Malibu, and on to Point Mugu at the Pacific Ocean. The fault then continues underwater to form the northern Channel Islands, and beyond to where it terminates.

External links

Southern California Earthquake Data Center: Raymond Fault

USGS Earthquake Hazards Program database: Raymond Fault
Seismic faults of California Geology of Los Angeles County, California Geology of Ventura County, California Natural history of the Santa Monica Mountains Natural history of the Transverse Ranges Natural history of Los Angeles County, California Natural history of Ventura County, California Channel Islands of California Geography of the San Fernando Valley Geography of the San Gabriel Valley {{VenturaCountyCA-geo-stub