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California Geological Survey - Alquist-Priolo Earthquake Fault Zones 

Table 4.
Cities and Counties Affected by Alquist-Priolo
Earthquake Fault Zones as of January 2010


This is an updated version of Table 4 from the 2007 edition of Special Publication 42 (Fault-Rupture Hazard Zones in California, by William A. Bryant and Earl W. Hart)*.  The list is current as of January 2010. However, additional cities may be affected by the zones as new cities are created, city boundaries are expanded, or new zones are established. 

CITIES (105)**

American Canyon
Arcadia
Arcata
Bakersfield
Banning
Barstow
Beaumont
Benicia
Berkeley
Bishop
Brea
Calimesa
Camarillo
Carson
Cathedral City
Chino Hills
Coachella
Colton
Compton
Concord
Corona
Coronado
Culver City
Daly City
Danville
Desert Hot Springs
Dublin
El Cerrito
Fairfield
Fontana
Fortuna
Fremont
Gardena
Glendale
Hayward
Hemet

 Highland
Hollister
Huntington Beach
Indio
Inglewood
La Habra
La Habra Heights
Lake Elsinore
Livermore
Loma Linda
Long Beach
Los Angeles
Malibu
Mammoth Lakes
Milpitas
Monrovia
Moorpark
Moreno Valley
Morgan Hill
Murrieta
Oakland
Pacifica
Palmdale
Palm Springs
Palo Alto
Pasadena
Petaluma
Pleasanton
Portola Valley
Rancho Cucamonga
Redlands
Rialto
Richmond
Ridgecrest
Rosemead

San Bernardino
San Bruno
San Diego
San Fernando
San Jacinto
San Jose
San Juan Bautista
San Leandro
San Luis Obispo
San Marino
San Pablo
San Ramon
Santa Clarita
Santa Rosa
Seal Beach
Signal Hill
Simi Valley
South Pasadena
South San Francisco
Temecula
Trinidad
Twentynine Palms
Union City
Upland
Ventura (San Buenaventura)
Walnut Creek
Whittier
Wildomar
Willits
Windsor
Woodside
Yorba Linda
Yucaipa
Yucca Valley

COUNTIES (36)

Alameda
Alpine
Butte
Contra Costa
Fresno
Humboldt
Imperial
Inyo
Kern
Lake
Lassen
Los Angeles
Marin
Mendocino
Merced
Modoc
Mono
Monterey

Napa
Orange
Riverside
San Benito
San Bernardino
San Diego
San Luis Obispo
San Mateo
Santa Barbara
Santa Clara
Santa Cruz
Shasta
Siskiyou
Solano
Sonoma
Stanislaus
Ventura
Yolo

  

* To inquire about local government policies and regulations you will need to address the Planning Director of each county or city. Some jurisdictions have replotted the Earthquake Fault Zone boundaries on large-scale parcel maps.

** Additional cities may be affected by the zones as new cities are created, city boundaries are expanded, or new zones are established.