Earthquake Rupture Zones in California

Earthquake rupture zones in California are known as Alquist-Priolo Earthquake Rupture Zones, or A-P Zones. These zones are regulatory areas that surround active earthquake faults and are areas subject to severe earthquake damage. The State Geologist defines these zones.

Cities and Counties Affected by Alquist-Priolo Earthquake Fault Zones:

 

Cities:

American Canyon

Arcadia 

Arcata

Bakersfield 

Banning

Barstow

Benicia

Berkeley

Bishop 

Brea

Calimesa

Camarillo

Carson 

Cathedral City 

Coachella

Colton 

Compton

Concord 

Corona 

Culver City

Daly City 

Danville

Desert Hot Springs 

Dublin 

El Cerrito 

Fairfield 

Fontana 

Fortuna 

Fremont 

Gardena 

Glendale

Hayward 

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 

Palm Springs

Palmdale

Palo Alto

Pasadena

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

Willits

Windsor

Woodside

Yorba Linda

Yucaipa

Yucca Valley

Counties:

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

 

 

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