Intensity Lab

Gazetteer Sites

We report estimated seismic intensity levels for populated areas in a region that includes California, Nevada, Oregon, Washington, northern Mexico, and western Idaho/Montana using locations from the GeoNames cities1000 list.

A magnitude describes the earthquake; an intensity describes a place. Keeping a fixed list of populated places is what lets us answer the second question: after each earthquake we estimate MMI at the sites the USGS ShakeMap grid actually covers — the population centers near that event, not all 2002 — store those estimates, and build the event report and regional summary email from the places that reached MMI IV or higher.

Why each site carries a Vs30

Two towns the same distance from the same earthquake can shake very differently, because soft basin sediment amplifies ground motion and hard rock does not. That difference is captured by Vs30 — the average shear-wave velocity in the top 30 meters — which is a required site term in the four NGA-West2 ground motion models we run. Vs30 is a property of the ground, not of the earthquake, so we resolve it once per site and reuse it for every event rather than looking it up 2,002 times after each one.

CGS Geology
California sites, from the California Geological Survey geology-based map served through SCEC UCVM.
Wald & Allen
Everywhere else, from the topographic-slope proxy (Wald & Allen, 2007), via UCVM's DEM where it reaches and the USGS global Vs30 raster beyond it.
Default (760 m/s)
The standard reference rock value, used only where neither source returns a measurement.

Each site's stored value and its source appear in the table below. How Vs30 enters the ground motion models →

Name Latitude
Acalanes Ridge 37.9047 Map →
Acton 34.4700 Map →
Adelanto 34.5828 Map →
Agoura 34.1431 Map →
Agoura Hills 34.1364 Map →
Agua Caliente 38.3241 Map →
Agua Dulce 34.4964 Map →
Aguanga 33.4428 Map →
Ahwahnee 37.3655 Map →
Alameda 37.7710 Map →
Alamo 37.8502 Map →
Albany 37.8869 Map →
Alhambra 34.0953 Map →
Aliso Viejo 33.5650 Map →
Allendale 38.4446 Map →
Alondra Park 33.8895 Map →
Alpaugh 35.8877 Map →
Alpine 32.8351 Map →
Altadena 34.1897 Map →
Alta Sierra 39.1416 Map →
Alta Sierra 35.7313 Map →
Alturas 41.4871 Map →
Alum Rock 37.3661 Map →
American Canyon 38.1749 Map →
Amesti 36.9636 Map →
Anaheim 33.8353 Map →
Anderson 40.4482 Map →
Angels Camp 38.0683 Map →
Angwin 38.5757 Map →
Antelope 38.7082 Map →
Antioch 38.0049 Map →
Anza 33.5550 Map →
Apple Valley 34.5008 Map →
Aptos 36.9772 Map →
Aptos Hills-Larkin Valley 36.9606 Map →
Arbuckle 39.0174 Map →
Arcadia 34.1397 Map →
Arcata 40.8665 Map →
Arden-Arcade 38.6025 Map →
Armona 36.3158 Map →
Arnold 38.2555 Map →
Aromas 36.8886 Map →
Arroyo Grande 35.1186 Map →
Artesia 33.8659 Map →
Arvin 35.2091 Map →
Ashland 37.6947 Map →
Atascadero 35.4894 Map →
Atherton 37.4613 Map →
Atwater 37.3477 Map →
Atwater Village 34.1164 Map →
Auberry 37.0808 Map →
Auburn 38.8966 Map →
Auburn Lake Trails 38.9143 Map →
August 37.9788 Map →
Avalon 33.3428 Map →
Avenal 36.0041 Map →
Avila Beach 35.1800 Map →
Avocado Heights 34.0361 Map →
Azusa 34.1336 Map →
Bakersfield 35.3733 Map →
Baldwin Park 34.0853 Map →
Banning 33.9256 Map →
Barstow 34.8986 Map →
Barstow Heights 34.8697 Map →
Bay Point 38.0291 Map →
Bayside 40.8424 Map →
Bayview 40.7726 Map →
Bayview 38.0070 Map →
Bayview-Hunters Point 37.7286 Map →
Beale Air Force Base 39.1092 Map →
Bear Valley Springs 35.1591 Map →
Beaumont 33.9295 Map →
Bel Air 34.0833 Map →
Bell 33.9775 Map →
Bella Vista 40.6407 Map →
Bellflower 33.8817 Map →
Bell Gardens 33.9653 Map →
Belmont 37.5202 Map →
Belvedere 37.8727 Map →
Belvedere 34.0406 Map →
Benicia 38.0494 Map →
Ben Lomond 37.0891 Map →
Berkeley 37.8716 Map →
Bermuda Dunes 33.7428 Map →
Berry Creek 39.6452 Map →
Bertsch-Oceanview 41.7525 Map →
Bethel Island 38.0149 Map →
Beverly Hills 34.0736 Map →
Big Bear City 34.2611 Map →
Big Bear Lake 34.2439 Map →
Biggs 39.4124 Map →
Big Pine 37.1649 Map →
Big River 34.1400 Map →
Biola 36.8022 Map →
Bishop 37.3635 Map →
Blackhawk 37.8208 Map →
Black Point-Green Point 38.1155 Map →
Bloomington 34.0703 Map →
Blue Lake 40.8829 Map →
Blythe 33.6103 Map →
Bodega Bay 38.3333 Map →
Bodfish 35.5880 Map →
Bolinas 37.9094 Map →
Bonadelle Ranchos-Madera Ranchos 36.9847 Map →
Bonita 32.6578 Map →
Bonny Doon 37.0416 Map →
Bonsall 33.2889 Map →
Boonville 39.0091 Map →
Boron 34.9994 Map →
Boronda 36.6989 Map →
Borrego Springs 33.2559 Map →
Bostonia 32.8076 Map →
Boulder Creek 37.1261 Map →
Boyes Hot Springs 38.3138 Map →
Boyle Heights 34.0339 Map →
Bradbury 34.1470 Map →
Brawley 32.9787 Map →
Brea 33.9167 Map →
Brentwood 37.9319 Map →
Brentwood 34.0520 Map →
Bret Harte 37.6021 Map →
Bridgeport 38.2558 Map →
Brisbane 37.6808 Map →
Broadmoor 37.6866 Map →
Brookdale 37.1063 Map →
Brooktrails 39.4438 Map →
Buckhorn 38.4522 Map →
Buellton 34.6136 Map →
Buena Park 33.8675 Map →
Buena Vista 37.3213 Map →
Burbank 34.1808 Map →
Burbank 37.3233 Map →
Burlingame 37.5841 Map →
Burney 40.8824 Map →
Buttonwillow 35.4005 Map →
Byron 37.8672 Map →
Bystrom 37.6208 Map →
Cabazon 33.9175 Map →
Calabasas 34.1578 Map →
Calexico 32.6790 Map →
California City 35.1258 Map →
Calimesa 34.0039 Map →
Calipatria 33.1256 Map →
Calistoga 38.5788 Map →
Callender 35.0530 Map →
Camarillo 34.2164 Map →
Cambria 35.5641 Map →
Cambrian Park 37.2569 Map →
Cameron Park 38.6688 Map →
Camino 38.7382 Map →
Campbell 37.2872 Map →
Camp Meeker 38.4252 Map →
Campo 32.6065 Map →
Camp Pendleton North 33.3147 Map →
Camp Pendleton South 33.2284 Map →
Canoga Park 34.2011 Map →
Canyon Country 34.4233 Map →
Canyon Lake 33.6850 Map →
Capitola 36.9752 Map →
Carlsbad 33.1581 Map →
Carmel-by-the-Sea 36.5552 Map →
Carmel Valley Village 36.5061 Map →
Carmichael 38.6171 Map →
Carpinteria 34.3989 Map →
Carson 33.8314 Map →
Caruthers 36.5427 Map →
Casa Conejo 34.1836 Map →
Casa de Oro-Mount Helix 32.7640 Map →
Castaic 34.4889 Map →
Castro Valley 37.6941 Map →
Castroville 36.7658 Map →
Cathedral City 33.7797 Map →
Cayucos 35.4428 Map →
Cedar Ridge 38.0658 Map →
Central Valley (historical) 40.6804 Map →
Century City 34.0556 Map →
Ceres 37.5949 Map →
Cerritos 33.8584 Map →
Challenge-Brownsville 39.4645 Map →
Channel Islands Beach 34.1581 Map →
Charter Oak 34.1031 Map →
Chatsworth 34.2572 Map →
Cherryland 37.6794 Map →
Cherry Valley 33.9725 Map →
Chester 40.3063 Map →
Chico 39.7285 Map →
China Lake Acres 35.6405 Map →
Chinatown 37.7966 Map →
Chinatown 37.7999 Map →
Chino 34.0122 Map →
Chino Hills 33.9938 Map →
Chowchilla 37.1230 Map →
Chualar 36.5705 Map →
Chula Vista 32.6401 Map →
Citrus 34.1150 Map →
Citrus Heights 38.7071 Map →
Claremont 34.0967 Map →
Clay 38.3360 Map →
Clayton 37.9410 Map →
Clearlake 38.9582 Map →
Clearlake Oaks 39.0263 Map →
Clear Lake Riviera 38.9541 Map →
Cloverdale 38.8055 Map →
Clovis 36.8252 Map →
Coachella 33.6803 Map →
Coalinga 36.1397 Map →
Coarsegold 37.2622 Map →
Cobb 38.8221 Map →
Colfax 39.1007 Map →
Collierville 38.2146 Map →
Colma 37.6769 Map →
Colton 34.0739 Map →
Columbia 38.0363 Map →
Colusa 39.2143 Map →
Commerce 34.0006 Map →
Communications Hill 37.2890 Map →
Compton 33.8959 Map →
Concord 37.9780 Map →
Contra Costa Centre 37.9275 Map →
Cool 38.8872 Map →
Copperopolis 37.9810 Map →
Corcoran 36.0980 Map →
Corning 39.9277 Map →
Corona 33.8753 Map →
Coronado 32.6859 Map →
Corralitos 36.9886 Map →
Corte Madera 37.9255 Map →
Costa Mesa 33.6411 Map →
Cotati 38.3269 Map →
Coto De Caza 33.6042 Map →
Cottonwood 38.6582 Map →
Cottonwood 40.3857 Map →
Country Club 37.9688 Map →
Covelo 39.7933 Map →
Covina 34.0900 Map →
Crescent City 41.7560 Map →
Crest 32.8073 Map →
Crestline 34.2420 Map →
Crockett 38.0524 Map →
Cudahy 33.9606 Map →
Culver City 34.0211 Map →
Cupertino 37.3230 Map →
Cutler 36.5233 Map →
Cutten 40.7699 Map →
Cypress 33.8170 Map →
Cypress Village 33.6879 Map →
Daly City 37.7058 Map →
Dana Point 33.4670 Map →
Danville 37.8216 Map →
Davis 38.5449 Map →
Day Valley 37.0358 Map →
Death Valley 36.2396 Map →
Deer Park 38.5327 Map →
Deer Park 38.6819 Map →
Del Aire 33.9161 Map →
Delano 35.7688 Map →
Delhi 37.4322 Map →
Del Mar 32.9595 Map →
Del Monte Forest 36.5864 Map →
Del Rey 36.6591 Map →
Del Rey Oaks 36.5933 Map →
Del Rio 37.7435 Map →
Denair 37.5263 Map →
Descanso 32.8528 Map →
Desert Edge 33.9242 Map →
Desert Hot Springs 33.9617 Map →
Desert Shores 33.4042 Map →
Desert View Highlands 34.5908 Map →
Diablo 37.8349 Map →
Diamond Bar 34.0286 Map →
Diamond Springs 38.6946 Map →
Dinuba 36.5433 Map →
Discovery Bay 37.9085 Map →
Dixon 38.4455 Map →
Dixon Lane-Meadow Creek 37.3864 Map →
Dogtown 38.2138 Map →
Dollar Point 39.1880 Map →
Dos Palos 36.9861 Map →
Downey 33.9400 Map →
Downieville 39.5593 Map →
Duarte 34.1395 Map →
Dublin 37.7022 Map →
Dunnigan 38.8852 Map →
Dunsmuir 41.2082 Map →
Durham 39.6463 Map →
Earlimart 35.8841 Map →
East Foothills 37.3811 Map →
East Hemet 33.7400 Map →
East La Mirada 33.9245 Map →
East Los Angeles 34.0239 Map →
East Oakdale 37.7880 Map →
Easton 36.6502 Map →
East Palo Alto 37.4688 Map →
East Pasadena 34.1381 Map →
East Porterville 36.0575 Map →
East Quincy 39.9341 Map →
East Rancho Dominguez 33.8981 Map →
East Richmond Heights 37.9449 Map →
East San Gabriel 34.0917 Map →
East Sonora 37.9777 Map →
Eastvale 33.9636 Map →
Echo Park 34.0781 Map →
Edwards Air Force Base 34.9164 Map →
El Cajon 32.7948 Map →
El Camino Real 33.6966 Map →
El Centro 32.7920 Map →
El Cerrito 37.9158 Map →
El Cerrito Corona 33.8406 Map →
El Dorado Hills 38.6857 Map →
Eldridge 38.3488 Map →
El Granada 37.5027 Map →
Elk Grove 38.4088 Map →
Elkhorn 36.8244 Map →
El Monte 34.0686 Map →
El Rio 34.2358 Map →
El Segundo 33.9192 Map →
El Sobrante 37.9772 Map →
El Verano 38.2977 Map →
Elverta 38.7138 Map →
Emerald Lake Hills 37.4647 Map →
Emeryville 37.8313 Map →
Empire 37.6383 Map →
Encinitas 33.0370 Map →
Encino 34.1592 Map →
Escalon 37.7978 Map →
Escondido 33.1192 Map →
Esparto 38.6921 Map →
Eucalyptus Hills 32.8798 Map →
Eureka 40.8021 Map →
Exeter 36.2961 Map →
Fairbanks Ranch 32.9939 Map →
Fairfax 37.9872 Map →
Fairfield 38.2494 Map →
Fairmead 37.0763 Map →
Fair Oaks 38.6446 Map →
Fairview 37.6785 Map →
Fallbrook 33.3764 Map →
Farmersville 36.2977 Map →
Felton 37.0513 Map →
Ferndale 40.5762 Map →
Fetters Hot Springs-Agua Caliente 38.3214 Map →
Fillmore 34.3992 Map →
Firebaugh 36.8588 Map →
Florence-Graham 33.9677 Map →
Florin 38.4960 Map →
Folsom 38.6780 Map →
Fontana 34.0922 Map →
Foothill Farms 38.6788 Map →
Foothill Ranch 33.6864 Map →
Ford City 35.1544 Map →
Foresthill 39.0202 Map →
Forest Meadows 38.1685 Map →
Forest Ranch 39.8821 Map →
Forestville 38.4735 Map →
Fort Bragg 39.4457 Map →
Fort Dick 41.8679 Map →
Fort Irwin 35.2628 Map →
Fortuna 40.5982 Map →
Foster City 37.5586 Map →
Fountain Valley 33.7092 Map →
Fowler 36.6305 Map →
Frazier Park 34.8228 Map →
Freedom 36.9352 Map →
Fremont 37.5483 Map →
French Camp 37.8841 Map →
Fresno 36.7477 Map →
Fruitridge Pocket 38.5327 Map →
Fullerton 33.8703 Map →
Galt 38.2546 Map →
Gardena 33.8884 Map →
Garden Acres 37.9638 Map →
Garden Grove 33.7739 Map →
Garnet 33.9270 Map →
Georgetown 38.9068 Map →
Gerber 40.0563 Map →
Gilroy 37.0058 Map →
Glen Avon 34.0117 Map →
Glendale 34.1425 Map →
Glendora 34.1361 Map →
Golden Hills 35.1425 Map →
Gold River 38.6263 Map →
Goleta 34.4358 Map →
Gonzales 36.5066 Map →
Good Hope 33.7647 Map →
Goshen 36.3511 Map →
Grand Terrace 34.0339 Map →
Granite Bay 38.7632 Map →
Granite Hills 32.8031 Map →
Grass Valley 39.2191 Map →
Graton 38.4363 Map →
Greenacres 35.3833 Map →
Green Acres 33.7381 Map →
Greenfield 36.3208 Map →
Greenfield 35.2689 Map →
Green Valley 34.6217 Map →
Green Valley 38.2530 Map →
Greenville 40.1396 Map →
Gridley 39.3638 Map →
Grover Beach 35.1216 Map →
Guadalupe 34.9716 Map →
Guerneville 38.5019 Map →
Gustine 37.2577 Map →
Hacienda Heights 33.9931 Map →
Half Moon Bay 37.4636 Map →
Hamilton City 39.7427 Map →
Hanford 36.3275 Map →
Happy Camp 41.7928 Map →
Harbison Canyon 32.8203 Map →
Hartley 38.4171 Map →
Hawaiian Gardens 33.8314 Map →
Hawthorne 33.9164 Map →
Hayfork 40.5543 Map →
Hayward 37.6688 Map →
Healdsburg 38.6105 Map →
Heber 32.7309 Map →
Hemet 33.7476 Map →
Herald 38.2958 Map →
Hercules 38.0171 Map →
Hermosa Beach 33.8622 Map →
Hesperia 34.4264 Map →
Hidden Hills 34.1603 Map →
Hidden Meadows 33.2253 Map →
Hidden Valley Lake 38.8080 Map →
Highgrove 34.0159 Map →
Highland 34.1283 Map →
Highlands-Baywood Park 37.5227 Map →
Hillsborough 37.5741 Map →
Hilmar-Irwin 37.4045 Map →
Hollister 36.8525 Map →
Hollywood 34.0983 Map →
Holtville 32.8112 Map →
Home Garden 36.3033 Map →
Home Gardens 33.8781 Map →
Homeland 33.7431 Map →
Hughson 37.5969 Map →
Humboldt Hill 40.7260 Map →
Huntington Beach 33.6603 Map →
Huntington Park 33.9817 Map →
Huron 36.2027 Map →
Hydesville 40.5476 Map →
Idyllwild 33.7400 Map →
Idyllwild-Pine Cove 33.7443 Map →
Imperial 32.8476 Map →
Imperial Beach 32.5839 Map →
Indian Wells 33.7179 Map →
Indio 33.7207 Map →
Inglewood 33.9617 Map →
Interlaken 36.9513 Map →
Inverness 38.1010 Map →
Inyokern 35.6469 Map →
Ione 38.3527 Map →
Irvine 33.6695 Map →
Irvine Health and Science Complex 33.6580 Map →
Irwindale 34.1070 Map →
Isla Vista 34.4133 Map →
Ivanhoe 36.3872 Map →
Jackson 38.3488 Map →
Jamestown 37.9533 Map →
Jamul 32.7170 Map →
Janesville 40.2966 Map →
Johnstonville 40.3843 Map →
Joshua Tree 34.1347 Map →
Julian 33.0787 Map →
Jurupa Valley 33.9925 Map →
Kelseyville 38.9780 Map →
Kennedy 37.9299 Map →
Kensington 37.9105 Map →
Kentfield 37.9522 Map →
Kenwood 38.4138 Map →
Kerman 36.7236 Map →
Kernville 35.7547 Map →
Kettleman City 36.0083 Map →
Keyes 37.5566 Map →
King City 36.2127 Map →
Kings Beach 39.2377 Map →
Kingsburg 36.5138 Map →
Knightsen 37.9688 Map →
Koreatown 34.0578 Map →
La Cañada Flintridge 34.1992 Map →
La Crescenta-Montrose 34.2322 Map →
Ladera 37.3999 Map →
Ladera Heights 33.9942 Map →
Ladera Ranch 33.5709 Map →
Lafayette 37.8858 Map →
Laguna 38.4210 Map →
Laguna Beach 33.5423 Map →
Laguna Hills 33.6125 Map →
Laguna Niguel 33.5225 Map →
Laguna Woods 33.6103 Map →
Lagunitas-Forest Knolls 38.0179 Map →
La Habra 33.9320 Map →
La Habra Heights 33.9609 Map →
La Jolla 32.8473 Map →
Lake Arrowhead 34.2483 Map →
Lake Elsinore 33.6681 Map →
Lake Forest 33.6470 Map →
Lake Isabella 35.6180 Map →
Lakeland Village 33.6386 Map →
Lake Los Angeles 34.6125 Map →
Lake Nacimiento 35.7283 Map →
Lake of the Pines 39.0396 Map →
Lakeport 39.0430 Map →
Lake San Marcos 33.1262 Map →
Lakeside 32.8573 Map →
Lakeview 33.8386 Map →
Lake Wildwood 39.2330 Map →
Lakewood 33.8536 Map →
La Mesa 32.7678 Map →
La Mirada 33.9172 Map →
Lamont 35.2597 Map →
Lancaster 34.6980 Map →
La Palma 33.8464 Map →
La Presa 32.7081 Map →
La Puente 34.0200 Map →
La Quinta 33.6634 Map →
Larchmont 34.0797 Map →
La Riviera 38.5669 Map →
Larkfield-Wikiup 38.5134 Map →
Larkspur 37.9341 Map →
La Selva Beach 36.9366 Map →
Las Flores 33.5881 Map →
Las Flores 34.0372 Map →
Las Lomas 36.8652 Map →
Lathrop 37.8227 Map →
Laton 36.4333 Map →
La Verne 34.1008 Map →
Lawndale 33.8872 Map →
Laytonville 39.6882 Map →
Lebec 34.8416 Map →
Le Grand 37.2286 Map →
Lemon Grove 32.7426 Map →
Lemoore 36.3008 Map →
Lemoore Station 36.2633 Map →
Lennox 33.9381 Map →
Lenwood 34.8767 Map →
Leona Valley 34.6183 Map →
Lewiston 40.7074 Map →
Lexington Hills 37.1647 Map →
Lincoln 38.8916 Map →
Lincoln Village 38.0052 Map →
Linda 39.1277 Map →
Linden 38.0213 Map →
Lindsay 36.2030 Map →
Littlerock 34.5211 Map →
Live Oak 39.2757 Map →
Live Oak 36.9836 Map →
Livermore 37.6819 Map →
Livingston 37.3869 Map →
Lockeford 38.1635 Map →
Lodi 38.1302 Map →
Loma Linda 34.0484 Map →
Loma Rica 39.3118 Map →
Lomita 33.7922 Map →
Lompico 37.1055 Map →
Lompoc 34.6392 Map →
London 36.4761 Map →
Lone Pine 36.6063 Map →
Long Beach 33.7670 Map →
Loomis 38.8213 Map →
Los Alamitos 33.8031 Map →
Los Alamos 34.7444 Map →
Los Altos 37.3852 Map →
Los Altos Hills 37.3797 Map →
Los Angeles 34.0522 Map →
Los Banos 37.0583 Map →
Los Gatos 37.2266 Map →
Los Molinos 40.0213 Map →
Los Olivos 34.6678 Map →
Los Osos 35.3111 Map →
Los Serranos 33.9728 Map →
Lost Hills 35.6164 Map →
Lower Lake 38.9105 Map →
Loyola 37.3513 Map →
Lucas Valley-Marinwood 38.0401 Map →
Lucerne 36.3808 Map →
Lucerne 39.0902 Map →
Lucerne Valley 34.4439 Map →
Lynwood 33.9303 Map →
Madera 36.9613 Map →
Madera Acres 37.0191 Map →
Magalia 39.8121 Map →
Malibu 34.0258 Map →
Mammoth Lakes 37.6486 Map →
Manhattan Beach 33.8847 Map →
Manteca 37.7974 Map →
March Air Force Base 33.8921 Map →
Maricopa 35.0589 Map →
Marina 36.6844 Map →
Marina del Rey 33.9816 Map →
Marin City 37.8685 Map →
Mariposa 37.4849 Map →
Martinez 38.0194 Map →
Marysville 39.1457 Map →
Matheny 36.1707 Map →
Maxwell 39.2763 Map →
Mayflower Village 34.1150 Map →
Maywood 33.9867 Map →
McCloud 41.2557 Map →
McFarland 35.6780 Map →
McKinleyville 40.9465 Map →
Meadowbrook 33.7258 Map →
Meadow Vista 39.0010 Map →
Mead Valley 33.8334 Map →
Mecca 33.5722 Map →
Meiners Oaks 34.4469 Map →
Mendota 36.7536 Map →
Menifee 33.7284 Map →
Menlo Park 37.4538 Map →
Mentone 34.0700 Map →
Merced 37.3022 Map →
Mesa Verde 33.6059 Map →
Mid-City 34.0413 Map →
Middletown 38.7524 Map →
Midpines 37.5444 Map →
Midway City 33.7447 Map →
Millbrae 37.5986 Map →
Mill Valley 37.9060 Map →
Milpitas 37.4283 Map →
Minkler 36.7238 Map →
Mira Mesa 32.9156 Map →
Mira Monte 34.4336 Map →
Mission Canyon 34.4508 Map →
Mission District 37.7599 Map →
Mission Hills 34.6861 Map →
Mission Viejo 33.6000 Map →
Modesto 37.6391 Map →
Mojave 35.0525 Map →
Mono Vista 37.9977 Map →
Monrovia 34.1481 Map →
Montague 41.7282 Map →
Montalvin 37.9955 Map →
Montara 37.5422 Map →
Montclair 34.0775 Map →
Montebello 34.0095 Map →
Montecito 34.4367 Map →
Monterey 36.6002 Map →
Monterey Park 34.0625 Map →
Monte Rio 38.4655 Map →
Monte Sereno 37.2363 Map →
Monument Hills 38.6643 Map →
Moorpark 34.2856 Map →
Morada 38.0385 Map →
Moraga 37.8349 Map →
Moreno Valley 33.9375 Map →
Morgan Hill 37.1305 Map →
Morongo Valley 34.0470 Map →
Morro Bay 35.3658 Map →
Moss Beach 37.5274 Map →
Mountain House 37.7833 Map →
Mountain Ranch 38.2283 Map →
Mountain View 37.3861 Map →
Mountain View 38.0088 Map →
Mountain View Acres 34.4967 Map →
Mount Hermon 37.0511 Map →
Mount Shasta 41.3102 Map →
Murphys 38.1376 Map →
Murrieta 33.5539 Map →
Murrieta Hot Springs 33.5606 Map →
Muscoy 34.1542 Map →
Myrtletown 40.7887 Map →
Napa 38.2971 Map →
National City 32.6781 Map →
Needles 34.8481 Map →
Nevada City 39.2617 Map →
Newark 37.5297 Map →
Newcastle 38.8741 Map →
Newman 37.3138 Map →
Newport Beach 33.6189 Map →
Nice 39.1232 Map →
Niland 33.2400 Map →
Nipomo 35.0428 Map →
Noe Valley 37.7502 Map →
Norco 33.9311 Map →
North Auburn 38.9313 Map →
North Edwards 35.0166 Map →
North El Monte 34.1028 Map →
North Fair Oaks 37.4744 Map →
North Highlands 38.6857 Map →
North Hills 34.2364 Map →
North Hollywood 34.1722 Map →
North Lakeport 39.0883 Map →
North Richmond 37.9588 Map →
Northridge 34.2283 Map →
North Tustin 33.7645 Map →
Northwood 33.7137 Map →
Norwalk 33.9022 Map →
Novato 38.1074 Map →
Nuevo 33.8014 Map →
Oak Creek 33.6740 Map →
Oakdale 37.7666 Map →
Oak Hills 34.3831 Map →
Oakhurst 37.3280 Map →
Oakland 37.8044 Map →
Oakley 37.9974 Map →
Oak Park 34.1792 Map →
Oak View 34.4000 Map →
Oasis 33.4659 Map →
Occidental 38.4074 Map →
Oceano 35.0989 Map →
Oceanside 33.1959 Map →
Oildale 35.4197 Map →
Ojai 34.4481 Map →
Old Fig Garden 36.7989 Map →
Olivehurst 39.0955 Map →
Ontario 34.0633 Map →
Orange 33.7878 Map →
Orange Cove 36.6244 Map →
Orangevale 38.6785 Map →
Orcutt 34.8653 Map →
Orinda 37.8772 Map →
Orland 39.7474 Map →
Orosi 36.5450 Map →
Oroville 39.5139 Map →
Oroville East 39.5113 Map →
Oxnard 34.1975 Map →
Pacheco 37.9835 Map →
Pacifica 37.6138 Map →
Pacific Grove 36.6177 Map →
Pacific Palisades 34.0481 Map →
Pajaro 36.9041 Map →
Palermo 39.4354 Map →
Palmdale 34.5794 Map →
Palm Desert 33.7226 Map →
Palm Springs 33.8303 Map →
Palo Alto 37.4419 Map →
Palo Cedro 40.5638 Map →
Palos Verdes Estates 33.8011 Map →
Paradise 39.7596 Map →
Paramount 33.8895 Map →
Parksdale 36.9472 Map →
Parkside 37.7420 Map →
Parkway 38.4960 Map →
Parkwood 36.9269 Map →
Parlier 36.6116 Map →
Pasadena 34.1478 Map →
Pasatiempo 37.0044 Map →
Paso Robles 35.6266 Map →
Patterson 37.4716 Map →
Patterson Tract 36.3795 Map →
Pedley 33.9753 Map →
Penngrove 38.2996 Map →
Penn Valley 39.1960 Map →
Perris 33.7825 Map →
Petaluma 38.2324 Map →
Phelan 34.4261 Map →
Phoenix Lake 38.0059 Map →
Pico Rivera 33.9831 Map →
Piedmont 37.8244 Map →
Pine Grove 38.4130 Map →
Pine Hills 40.7332 Map →
Pine Mountain Club 34.8464 Map →
Pine Valley 32.8214 Map →
Pinole 38.0044 Map →
Piñon Hills 34.4333 Map →
Pioneer 38.4319 Map →
Piru 34.4153 Map →
Pismo Beach 35.1428 Map →
Pittsburg 38.0280 Map →
Pixley 35.9686 Map →
Placentia 33.8722 Map →
Placerville 38.7296 Map →
Planada 37.2908 Map →
Pleasant Hill 37.9480 Map →
Pleasanton 37.6624 Map →
Plumas Lake 39.0207 Map →
Pollock Pines 38.7616 Map →
Pomona 34.0553 Map →
Poplar-Cotton Center 36.0564 Map →
Porterville 36.0652 Map →
Port Hueneme 34.1478 Map →
Portola 39.8105 Map →
Portola Hills 33.6792 Map →
Portola Valley 37.3841 Map →
Poway 32.9628 Map →
Prunedale 36.7758 Map →
Quail Hill 33.6511 Map →
Quail Valley 33.7070 Map →
Quartz Hill 34.6453 Map →
Quincy 39.9368 Map →
Rainbow 33.4103 Map →
Ramona 33.0417 Map →
Rancho Calaveras 38.1274 Map →
Rancho Cordova 38.5891 Map →
Rancho Cucamonga 34.1064 Map →
Rancho Mirage 33.7397 Map →
Rancho Murieta 38.5019 Map →
Rancho Palos Verdes 33.7445 Map →
Rancho Penasquitos 32.9595 Map →
Rancho San Diego 32.7473 Map →
Rancho Santa Fe 33.0203 Map →
Rancho Santa Margarita 33.6409 Map →
Rancho Tehama Reserve 40.0157 Map →
Red Bluff 40.1785 Map →
Red Corral 38.4117 Map →
Redding 40.5865 Map →
Redlands 34.0556 Map →
Redondo Beach 33.8492 Map →
Redway 40.1201 Map →
Redwood City 37.4852 Map →
Redwood Shores 37.5319 Map →
Redwood Valley 39.2654 Map →
Reedley 36.5963 Map →
Reseda 34.2011 Map →
Rialto 34.1064 Map →
Richgrove 35.7966 Map →
Richmond 37.9358 Map →
Ridgecrest 35.6225 Map →
Ridgemark 36.8125 Map →
Rio Dell 40.4993 Map →
Rio Del Mar 36.9683 Map →
Rio Linda 38.6910 Map →
Rio Vista 38.1639 Map →
Ripon 37.7416 Map →
Riverbank 37.7360 Map →
Riverdale 36.4311 Map →
Riverdale Park 37.6094 Map →
Riverside 33.9534 Map →
Rocklin 38.7907 Map →
Rodeo 38.0330 Map →
Rohnert Park 38.3396 Map →
Rolling Hills 33.7574 Map →
Rolling Hills Estates 33.7878 Map →
Rollingwood 37.9652 Map →
Romoland 33.7459 Map →
Rosamond 34.8641 Map →
Rosedale 35.3836 Map →
Roseland 38.4221 Map →
Rosemead 34.0806 Map →
Rosemont 38.5519 Map →
Roseville 38.7521 Map →
Ross 37.9624 Map →
Rossmoor 33.7856 Map →
Rowland Heights 33.9761 Map →
Rubidoux 33.9961 Map →
Running Springs 34.2078 Map →
Sacramento 38.5816 Map →
Saint Helena 38.5052 Map →
Salida 37.7058 Map →
Salinas 36.6777 Map →
Salton City 33.2987 Map →
San Andreas 38.1960 Map →
San Anselmo 37.9747 Map →
San Antonio Heights 34.1556 Map →
San Bernardino 34.1083 Map →
San Bruno 37.6305 Map →
San Carlos 37.5072 Map →
San Clemente 33.4270 Map →
San Diego 32.7157 Map →
San Diego Country Estates 33.0067 Map →
San Dimas 34.1067 Map →
San Fernando 34.2820 Map →
San Francisco 37.7749 Map →
San Gabriel 34.0961 Map →
Sanger 36.7080 Map →
San Jacinto 33.7839 Map →
San Joaquin 36.6066 Map →
San Joaquin Hills 33.6117 Map →
San Jose 37.3394 Map →
San Juan Bautista 36.8455 Map →
San Juan Capistrano 33.5017 Map →
San Leandro 37.7249 Map →
San Lorenzo 37.6810 Map →
San Luis Obispo 35.2828 Map →
San Marcos 33.1434 Map →
San Marino 34.1214 Map →
San Martin 37.0850 Map →
San Mateo 37.5630 Map →
San Miguel 35.7525 Map →
San Pablo 37.9622 Map →
San Pasqual 33.0917 Map →
San Pedro 33.7359 Map →
San Rafael 37.9735 Map →
San Ramon 37.7799 Map →
Santa Ana 33.7456 Map →
Santa Barbara 34.4208 Map →
Santa Clara 37.3541 Map →
Santa Clarita 34.3917 Map →
Santa Cruz 36.9741 Map →
Santa Fe Springs 33.9472 Map →
Santa Margarita 35.3900 Map →
Santa Maria 34.9530 Map →
Santa Monica 34.0195 Map →
Santa Paula 34.3542 Map →
Santa Rosa 38.4405 Map →
Santa Susana 34.2570 Map →
Santa Venetia 37.9985 Map →
Santa Ynez 34.6144 Map →
Santee 32.8384 Map →
Saranap 37.8849 Map →
Saratoga 37.2638 Map →
Saticoy 34.2831 Map →
Sausalito 37.8591 Map →
Sawtelle 34.0363 Map →
Scotts Valley 37.0511 Map →
Seacliff 36.9741 Map →
Seal Beach 33.7414 Map →
Sea Ranch 38.7152 Map →
Searles Valley 35.7675 Map →
Seaside 36.6111 Map →
Sebastopol 38.4021 Map →
Sedco Hills 33.6417 Map →
Seeley 32.7931 Map →
Selma 36.5708 Map →
Seven Trees 37.2861 Map →
Shackelford 37.6138 Map →
Shadow Hills 34.2620 Map →
Shafter 35.5005 Map →
Shandon 35.6553 Map →
Shasta 40.5993 Map →
Shasta Lake 40.6804 Map →
Sheridan 38.9796 Map →
Sherman Oaks 34.1511 Map →
Shingle Springs 38.6657 Map →
Shingletown 40.4924 Map →
Sierra Madre 34.1617 Map →
Signal Hill 33.8045 Map →
Silver Lake 34.0867 Map →
Silver Lakes 34.7456 Map →
Simi Valley 34.2695 Map →
Sky Valley 33.8900 Map →
Sleepy Hollow 38.0105 Map →
Soda Bay 39.0010 Map →
Solana Beach 32.9912 Map →
Soledad 36.4247 Map →
Solvang 34.5958 Map →
Somerset 38.6477 Map →
Sonoma 38.2919 Map →
Sonora 37.9841 Map →
Soquel 36.9880 Map →
Sorrento Valley 32.8999 Map →
Soulsbyville 37.9847 Map →
South Dos Palos 36.9644 Map →
South El Monte 34.0520 Map →
South Gate 33.9547 Map →
South Lake Tahoe 38.9332 Map →
South Oroville 39.4810 Map →
South Pasadena 34.1161 Map →
South San Francisco 37.6547 Map →
South San Gabriel 34.0492 Map →
South San Jose Hills 34.0128 Map →
South Taft 35.1347 Map →
South Whittier 33.9502 Map →
South Yuba City 39.1166 Map →
Spring Valley 32.7448 Map →
Spring Valley Lake 34.4936 Map →
Stallion Springs 35.0889 Map →
Stanford 37.4241 Map →
Stanton 33.8025 Map →
Stevenson Ranch 34.3905 Map →
Stockton 37.9577 Map →
Stonegate 33.7053 Map →
Stratford 36.1894 Map →
Strathmore 36.1455 Map →
Strawberry 37.8969 Map →
Studio City 34.1486 Map →
Suisun 38.2383 Map →
Summerland 34.4214 Map →
Sun City 33.7092 Map →
Sunland 34.2670 Map →
Sunnyside 36.7310 Map →
Sunnyside-Tahoe City 39.1502 Map →
Sunnyslope 34.0120 Map →
Sunnyvale 37.3688 Map →
Sun Village 34.5595 Map →
Susanville 40.4163 Map →
Sutter 39.1599 Map →
Sutter Creek 38.3930 Map →
Sylmar 34.3078 Map →
Taft 35.1425 Map →
Taft Heights 35.1347 Map →
Taft Mosswood 37.9139 Map →
Tahoe Vista 39.2399 Map →
Tahoma 39.0674 Map →
Talmage 39.1332 Map →
Tamalpais-Homestead Valley 37.8783 Map →
Tamalpais Valley 37.8797 Map →
Tara Hills 37.9935 Map →
Tarpey Village 36.7930 Map →
Tehachapi 35.1322 Map →
Temecula 33.4936 Map →
Temelec 38.2666 Map →
Temple City 34.1072 Map →
Templeton 35.5497 Map →
Terra Bella 35.9625 Map →
Teviston 35.9289 Map →
Thermal 33.6403 Map →
Thermalito 39.5113 Map →
Thornton 38.2260 Map →
Thousand Oaks 34.1706 Map →
Thousand Palms 33.8200 Map →
Three Rivers 36.4388 Map →
Tiburon 37.8735 Map →
Tierra Buena 39.1488 Map →
Tipton 36.0594 Map →
Topanga 34.0936 Map →
Toro Canyon 34.4200 Map →
Torrance 33.8359 Map →
Trabuco Canyon 33.6625 Map →
Tracy 37.7399 Map →
Truckee 39.3280 Map →
Tujunga 34.2522 Map →
Tulare 36.2077 Map →
Tuolumne City 37.9627 Map →
Turlock 37.4947 Map →
Turtle Rock 33.6434 Map →
Tustin 33.7459 Map →
Tustin Legacy 33.7001 Map →
Twain Harte 38.0397 Map →
Twentynine Palms 34.1356 Map →
Twin Lakes 36.9675 Map →
UC Irvine 33.6397 Map →
Ukiah 39.1502 Map →
Union City 37.5958 Map →
Universal City 34.1389 Map →
University Park 33.6625 Map →
University Town Center 33.6516 Map →
Upland 34.0975 Map →
Upper Lake 39.1646 Map →
Vacaville 38.3566 Map →
Valencia 34.4436 Map →
Valinda 34.0453 Map →
Vallejo 38.1041 Map →
Valle Vista 33.7478 Map →
Valley Center 33.2184 Map →
Valley Glen 34.1857 Map →
Valley Springs 38.1916 Map →
Val Verde 34.4450 Map →
Vandenberg Space Force Base 34.7483 Map →
Vandenberg Village 34.7083 Map →
Van Nuys 34.1867 Map →
Venice 33.9908 Map →
Ventura 34.2783 Map →
Vermont Square 34.0020 Map →
Victorville 34.5361 Map →
View Park-Windsor Hills 33.9955 Map →
Villa Park 33.8145 Map →
Vincent 34.5006 Map →
Vincent 34.0984 Map →
Vine Hill 38.0085 Map →
Vineyard 38.4645 Map →
Visalia 36.3302 Map →
Visitacion Valley 37.7172 Map →
Vista 33.2000 Map →
Vista Santa Rosa 33.6278 Map →
Waldon 37.9263 Map →
Walnut 34.0203 Map →
Walnut Creek 37.9063 Map →
Walnut Grove 38.2421 Map →
Walnut Park 33.9681 Map →
Walnut Village 33.7097 Map →
Wasco 35.5941 Map →
Waterford 37.6413 Map →
Watsonville 36.9102 Map →
Weaverville 40.7310 Map →
Weed 41.4227 Map →
Weedpatch 35.2380 Map →
Weldon 35.6658 Map →
West Athens 33.9234 Map →
West Bishop 37.3610 Map →
West Carson 33.8217 Map →
West Covina 34.0686 Map →
Westhaven-Moonstone 41.0449 Map →
West Hills 34.1973 Map →
West Hollywood 34.0900 Map →
Westlake Village 34.1458 Map →
West Menlo Park 37.4336 Map →
Westminster 33.7592 Map →
West Modesto 37.6175 Map →
Westmont 33.9414 Map →
Westmorland 33.0373 Map →
Westpark 33.6853 Map →
West Park 36.7102 Map →
West Puente Valley 34.0517 Map →
West Rancho Dominguez 33.8939 Map →
West Sacramento 38.5805 Map →
West Whittier-Los Nietos 33.9760 Map →
Westwood 34.0561 Map →
Westwood 40.3060 Map →
Wheatland 39.0099 Map →
Whittier 33.9792 Map →
Wildomar 33.5989 Map →
Williams 39.1546 Map →
Willits 39.4096 Map →
Willowbrook 33.9170 Map →
Willow Creek 40.9396 Map →
Willows 39.5243 Map →
Wilmington 33.7800 Map →
Wilton 38.4119 Map →
Winchester 33.7070 Map →
Windsor 38.5471 Map →
Winnetka 34.2133 Map →
Winter Gardens 32.8312 Map →
Winters 38.5249 Map →
Winton 37.3894 Map →
Wofford Heights 35.7069 Map →
Woodacre 38.0127 Map →
Woodbridge 38.1541 Map →
Woodbridge 33.6772 Map →
Woodcrest 33.8822 Map →
Woodlake 36.4136 Map →
Woodland 38.6785 Map →
Woodland Hills 34.1683 Map →
Woodside 37.4299 Map →
Woodville 36.0936 Map →
Wrightwood 34.3608 Map →
Yokuts Valley 36.7402 Map →
Yorba Linda 33.8886 Map →
Yosemite Lakes 37.1911 Map →
Yosemite Valley 37.7408 Map →
Yountville 38.4016 Map →
Yreka 41.7354 Map →
Yuba City 39.1405 Map →
Yucaipa 34.0336 Map →
Yucca Valley 34.1142 Map →

All 2002 sites are available via the public API at GET /api/v1/sites/. Source: GeoNames cities1000 (cities with ≥1,000 residents), consistent with the population threshold used by USGS in earthquake reports. Vs30 values are site-specific shear-wave velocities used in GMPE calculations.