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California Geological Survey - Alquist-Priolo Earthquake Fault Zones 


EARTHQUAKE FAULT ZONES
AFFECTING COUNTIES

This table lists all Official Maps of Earthquake Fault Zones affecting 36 counties in California.   Click on the figure under the county name to view the appropriate index of Earthquake Fault Zone maps.   Note:   This table and the linked maps are optimized for viewing with Internet Explorer 4.0.

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A-I     K-M     N-S     V-Y

County

Earthquake Fault Zone Maps Affecting County

A-I

Alameda
Figure 4B

Altamont
Byron Hot Springs
Calaveras Reservoir
Cedar Mtn.
Dublin
Eylar Mountain
Hayward
La Costa Valley
Livermore
Midway
Milpitas
Newark
Niles
Oakland East
Oakland West
Richmond
San Leandro

Alpine
Figure 4H

Markleeville
Minden
Woodfords

Butte
Figure 4H

Bangor

Contra Costa
Figure 4B

Byron Hot Springs
Clayton
Diablo
Dublin
Mare Island
Richmond
Tassajara
Vine Hill   (formerly Port Chicago)
Walnut Creek

Fresno
Figure 4C

Alcalde Hills
Ortigalita Peak

Humboldt
Figure 4A

Arcata North
Arcata South
Fields Landing
Fortuna
Hydesville
Korbel
Shelter Cove (formerly Point   Delgada SE1/4)
Trinidad

Imperial
Figure 4F

Alamorio
Bonds Corner
Borrego Mountain SE
Brawley
Brawley NW
Calexico
Carrizo Mtn.
Durmid
El Centro
Frink
Frink NW
Harpers Well
Holtville West
Kane Spring
Plaster City NW
Seeley
Shell Reef
Superstition Mtn.

Inyo
Figure 4I
Figure 4J

Badwater
Ballarat
Bartlett
Beatty Junction
Bee Springs Canyon
Big Pine NE1/4
Bishop NE1/4
Bishop NW1/4
Bishop SE1/4
Bishop SW1/4
Blackrock
Cactus Peak
Chocolate Mtn.
Confidence Hills East
Confidence Hills West
Copper Queen Canyon
Dantes View
Deep Springs Lake
Devils Golf Course
Dry Bone Canyon
East of Tin Mountain
Emigrant Pass
Fall Canyon
Fish Springs
Furnace Creek
Gold Valley
Grotto Canyon
Hanaupah Canyon
Horse Thief Canyon
Independence
Jail Canyon
Kearsarge Peak
Last Chance Mtn.
Little Lake
Lone Pine
Manly Fall
Manzanar
Maturango Peak NE
Maturango Peak SE
Mesquite Flat
Mormon Point
Mount Tom
Mt. Langley
Mt. Morgan
Mt. Williamson
Nova Canyon
Olancha
Panamint Butte
Panamint Springs
Pearsonville
Revenue Canyon
Rovana
Scottys Castle
Shore Line Butte
Soldier Pass
Stovepipe Wells NE
Sylvania Canyon
The Dunes
Tinemaha Reservoir
Tule Canyon
Tungsten Hills
Ubehebe Crater
Uhlmeyer Spring
Union Wash
Volcano Peak
White Hills
K-M
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Kern
Figure 4D

Figure 4E
Figure 4J

Apache Canyon
Arvin
Ballinger Canyon
Bear Mountain
Breckenridge Mountain SE1/4
Breckenridge Mountain SW1/4
Cantil
Cinco
Coal Oil Canyon
Conner SW
Cuddy Valley
Eagle Rest Peak
Edison
El Paso Peaks
Frazier Mtn.
Garlock
Grapevine
Holland Canyon
Inyokern
La Panza NE
Las Yeguas Ranch
Lebec
Liebre Twins
McKittrick Summit
Mettler
Mojave
Mojave NE1/4
Mojave NW1/4
Monolith
North of Oildale
Oil Center
Oildale
Orchard Peak
Packwood Creek
Pastoria Creek
Pearsonville
Pleito Hills
Pond
Ridgecrest North
Ridgecrest South
Rio Bravo Ranch
Saltdale SE
Santiago Creek
Sawmill Mountain
Taft
Tehachapi South
Tylerhorse Canyon
White Hills
Winters Ridge

Lake
Figure 4A

Figure 4B

Clearlake Highlands
Elk Mountain
Hull Mountain
Jericho Valley
Kelseyville
Lake Pillsbury
Potato Hill
Sanhedrin Mtn.

Lassen
Figure 4G

Calneva Lake
Constantia
Doyle
Herlong
McKesick Peak
MilfordPittville
Snake Lake
Standish
Stony Ridge
Swains Hole

Los Angeles
Figure 4D

Figure 4E

Beverly Hills
Burbank
Burnt Peak
Del Sur
El Monte
Frazier Mtn.
Hollywood
Inglewood
Juniper Hills
La Habra
La Liebre Ranch
Lake Hughes
Lebec
Liebre Mtn.
Littlerock
Long Beach
Los Alamitos
Los Angeles
Malibu Beach
Mescal Creek
Mount San Antonio
Mt. Wilson
Newhall
Oat Mountain
Palmdale
Point Dume
Ritter Ridge
San Fernando
Sleepy Valley
Sunland
Torrance
Valyermo

Marin
Figure 4B

Bodega Head
Bolinas
Double Point
Drakes Bay
Inverness
Point Reyes NE
Tomales
Valley Ford

Mendocino
Figure 4A
Figure 4B

Elledge Peak
Gualala
Hopland
Laytonville
Longvale
Mallo Pass Creek
Ornbaun Valley SW1/4
Point Arena
Point Arena NE1/4
Purdys Gardens
Redwood Valley
Sanhedrin Mtn.
Ukiah
Willits NE
Willits NW
Willits SE

Merced
Figure 4C

Crevison Peak
Los Banos Valley
Ortigalita Peak
Ortigalita Peak NW
Pacheco Pass
San Luis Dam
 

Modoc
Figure 4G

Cedarville
Eagle Peak
Eagleville
Fort Bidwell
Lake City
Snake Lake
Timbered Crater
Warren Peak

Mono
Figure 4H

Figure 4I

Bishop NE1/4
Bishop NW1/4
Bodie NW1/4
Bodie SW1/4
Bridgeport SW1/4
Casa Diablo Mtn. SW1/4
Chocolate Mtn.
Desert Creek Peak SW1/4
Devils Postpile NE1/4
Dyer
Fales Hot Springs
Fales Hot Springs SE1/4
Indian Garden Creek
Matterhorn Peak NE1/4
Mono Craters NE1/4
Mono Craters NW1/4
Mono Craters SE1/4
Montgomery Peak NW
Montgomery Peak SW
Mt. Morgan
Mt. Morrison NE1/4
Mt. Morrison NW1/4
Mt. Morrison SE1/4
Rovana

Station Peak
Topaz Lake NE1/4
Topaz Lake SE1/4
White Mtn. SE
White Mtn. SW

Monterey
Figure 4C

Cholame Hills
Cholame Valley
Hepsedam Peak
Lonoak
Monarch Peak
Parkfield
Priest Valley
Slack Canyon
Smith Mountain
Stockdale Mountain

N-S
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Napa
Figure 4B

Cordelia
Cuttings Wharf
Jericho Valley Knoxville
Mt. George
   

Orange
Figure 4E

La Habra
Los Alamitos
Newport Beach
Prado Dam
Seal Beach
Yorba Linda
 

Riverside
Figure 4E

Figure 4F

Alberhill
Beaumont
Bucksnort Mtn.
Cabazon
Cathedral City
Clark Lake NE
Collins Valley
Corona South
Desert Hot Springs
Durmid
El Casco
Elsinore
Frink NW
Hemet
Hemet NE1/4
Idyllwild NW1/4
Idyllwild SE1/4
Idyllwild SW1/4
Indio
Joshua Tree South
Lake Mathews
Lakeview
Lost Horse Mtn. SW1/4
Mecca
Morongo Valley SE1/4
Morongo Valley SW1/4
Mortmar
Murrieta
Myoma
Orocopia Canyon
Palm Desert SW1/4
Pechanga
Redlands
Salton
San Gorgonio Mountain SE1/4
San Gorgonio Mountain SW1/4
San Jacinto
Seven Palms Valley
Sunnymead
Temecula
Thermal Canyon
Thousand Palms NE1/4
White Water
Wildomar
Yucca Valley South

San Benito
Figure 4C

Bickmore Canyon
Cherry Peak
Chittenden
Hepsedam Peak
Hollister
Monarch Peak
Mt. Harlan
Paicines
Rock Spring Peak
San Benito
San Felipe
San Juan Bautista
Three Sisters
Topo Valley
Tres Pinos
Watsonville East

San Bernardino
Figure 4E
Figure 4F
Figure 4J

Apple Valley North
Apple Valley South
Avawatz Pass SW1/4
Barstow
Barstow SE
Big Bear City
Bighorn Canyon
Bird Spring
Cady Mountains NW1/4
Cajon
Camp Rock Mine
Confidence Hills East
Copper Queen Canyon
Cougar Buttes
Cucamonga Peak
Cuddeback Lake NW1/4
Daggett
Deadman Lake NW
Deadman Lake SE
Deadman Lake SW
Devore
East of Owl Lake
El Paso Peaks
Emerson Lake
Fairview Valley
Fawnskin
Fifteenmile Valley
Fremont Peak
Fry Mountains
Galway Lake
Goat Mountain
Grand View Mine
Harrison Mtn.
Harvard Hill
Hector
Hidalgo Mtn.
Hidden Spring
Iron Ridge
Joshua Tree North
Joshua Tree South
Keller Peak
Klinker Mtn.
Kramer Hills
Landers
Lavic Lake
Lavic SE
Leach Lake SE1/4
Leach Lake SW1/4
Lockhart
Lucerne Valley
Melville Lake
Minneola
Morongo Valley SE1/4
Morongo Valley SW1/4
Mount San Antonio
Mt. Baldy
Mud Hills
Newberry NE1/4
Newberry Springs
Old Ibex Pass
Old Woman Springs
Opal Mountain
Orchard Peak
Ord Mountain
Quail Mountains SE1/4
Quail Mountains SW1/4
Queen Mtn.
Rattlesnake Canyon
Redlands
San Bernardino North
San Bernardino South
San Gorgonio Mountain SE1/4
San Gorgonio Mountain SW1/4
Searles Lake SE1/4
Silver Bell Mine
Sourdough Spring
Spangler Hills East
Sunfair
Sunshine Peak
Superior Lake
Telegraph Peak
The Buttes
Troy Lake
Turtle Valley
Twentynine Palms
Twentynine Palms Mountain
Valley Mtn.
Water Valley
West Ord Mtn.
Wingate Pass
Wingate Pass SE1/4
Wingate Pass SW1/4
Yermo
Yucaipa
Yucca Valley North
Yucca Valley South

San Diego
Figure 4F

Agua Caliente Springs
Arroyo Tapiado
Borrego Mountain
Borrego Mountain SE
Borrego Palm Canyon
Borrego Sink
Carrizo Mtn.
Clark Lake
Clark Lake NE
Collins Valley
Earthquake Valley
Fonts Point
Julian
La Jolla
Mesa Grande
Monument Peak
Pala
Pechanga
Point Loma
Ranchita
Shell Reef
Sweeney Pass
Warners Ranch

San Luis Obispo
Figure 4C

Figure 4D

Ballinger Canyon
Burro Mountain
Cholame
Cholame Valley
Cuyama
Elkhorn Hills
Holland Canyon
La Panza NE
Las Yeguas Ranch
Lonoak
Maricopa
McKittrick Summit
Orchard Peak
Packwood Creek
Painted Rock
Panorama Hills
Piedras Blancas
San Luis Obispo
San Simeon
Simmler
Wells Ranch

San Mateo
Figure 4B

Ano Nuevo
Franklin Point
Half Moon Bay
Mindego Hill
Montara Mountain
Palo Alto
San Francisco South
San Mateo
Woodside
 

Santa Barbara
Figure 4D

Zaca Creek

Santa Clara
Figure 4B

Figure 4C

Calaveras Reservoir
Castle Rock Ridge
Chittenden
Cupertino
Eylar Mountain
Gilroy
Gilroy Hot Springs
Laurel
Lick Observatory
Los Gatos
Milpitas
Mindego Hill
Morgan Hill
Mt. Day
Mt. Sizer
San Felipe
San Jose East
Watsonville East

Santa Cruz
Figure 4B

Figure 4C

Ano Nuevo
Chittenden
Laurel
Loma Prieta
Los Gatos
Mt. Madonna
Watsonville East
Watsonville West

Shasta
Figure 4G

Burney
Burney Falls
Cassel
Coble Mountain
Dana
Day
Fall River MillsHogback Ridge
Jellico
Murken Bench
Old Station
Pittville
Swains Hole
Timbered Crater

Siskiyou
Figure 4G

Bray
Dorris
East of Pondosa
Garner Mtn.
Indian Spring Mountain
Macdoel
Porcupine Butte
Rainbow Mountain
Red Rock Lakes
Sams Neck
Sharp Mtn.
Sheep Mountain
Tennant
Timbered Crater

Solano
Figure 4B

Cordelia
Fairfield South
Mt. George
Vine Hill (formerly Port Chicago)
   

Sonoma
Figure 4B

Annapolis
Arched Rock
Asti
Bodega Head
Cotati
Duncans Mills
Fort Ross
Geyserville
Glen Ellen
Healdsburg
Jimtown
Mark West Springs
Mount St. Helena
Ornbaun Valley SW1/4
Petaluma River
Plantation
Santa Rosa
Sears Point
Stewarts Point
Valley Ford

Stanislaus
Figure 4C

Crevison Peak
Mustang Peak

V-Y
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Ventura
Figure 4D

Camarillo
Cuddy Valley
Fillmore
Frazier Mtn.
Matilija
Moorpark)
Newberry Park
Oja
Pitas Point
Santa Paula
Santa Paula Peak
Saticoy
Simi Valley East
Simi Valley West
Ventura

Yolo
Figure 4B

Jericho Valley

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