
The Raymond Fault is a
fault across central
Los Angeles County
Los Angeles County, officially the County of Los Angeles, and sometimes abbreviated as L.A. County, is the most populous county in the United States and in the U.S. state of California, with 9,861,224 residents estimated as of 2022. It is the ...
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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* Webster Bank (NYSE: WBS), a bank based out of Waterbury, Connecticut
Education
* Warwick Business School, the largest academic department of the U ...
path. It then goes straight west through
Arcadia
Arcadia may refer to:
Places Australia
* Arcadia, New South Wales, a suburb of Sydney
* Arcadia, Queensland
* Arcadia, Victoria
Greece
* Arcadia (region), a region in the central Peloponnese
* Arcadia (regional unit), a modern administrative un ...
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
Sunset Strip
The Sunset Strip is the stretch of Sunset Boulevard that passes through the city of West Hollywood, California. It extends from West Hollywood's eastern border with the city of Los Angeles near Marmont Lane to its western border with Beverly H ...
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 FaultUSGS 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
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