Under your feet

America's faults

470 mapped faults and seismic zones, from the San Andreas to New Madrid. Each has a page with its history, every earthquake recorded near it, and how its week compares with the last ten years.

Brighter and thicker means faster-slipping. Shaded areas are seismic zones mapped as areas, not single faults. Source: USGS Quaternary Fault and Fold Database. Tap a fault for its page.

This week vs. normal

The fault league

Faults ranked by how unusual their week is for them: quakes of M1.5+ within 5 km of the trace, against every week of their last ten years. Near a fault is not the same as on it.

1 Fish Lake Valley fault 99 3 quakes this week · normal 0–0 · unusual · California, Nevada
2 Rattlesnake Mountain fault 99 2 quakes this week · normal 0–0 · unusual · Washington
3 Greenville fault 98 3 quakes this week · normal 0–0 · unusual · California
4 West Napa fault 97 2 quakes this week · normal 0–0 · unusual · California
5 Park Road fault (Northern Foothills fold and thrust belt) 95 2 quakes this week · normal 0–1 · unusual · Alaska
6 Palos Verdes fault 94 2 quakes this week · normal 0–0 · elevated · California
7 Grand Valley fault 93 1 quake this week · normal 0–0 · elevated · Idaho, Wyoming
8 Edison fault 90 1 quake this week · normal 0–0 · elevated · California
9 Pleasanton fault 89 2 quakes this week · normal 0–1 · elevated · California
10 Northern Foothills thrust fault (Northern Foothills fold and thrust belt) 89 1 quake this week · normal 0–0 · elevated · Alaska

Computed 2026-09-28 23:45 UTC · refreshed with every nightly rebuild · method

The famous ones

San Andreas fault California · 1,082 km · > 5 mm/yr M 7.9 1857
Hayward fault California · 107 km · > 5 mm/yr M 6.8 1868
Newport-Inglewood-Rose Canyon fault California · 209 km · 1–5 mm/yr M 6.4 1933
Puente Hills blind thrust system California · 43 km · 0.2–1 mm/yr M 6.0 1769
San Jacinto fault California · 244 km · > 5 mm/yr M 7.5 1812
Garlock fault California · 257 km · > 5 mm/yr M 7.5 1952
Cascadia megathrust Oregon, Washington · 754 km · > 5 mm/yr M 6.0 1926
Wasatch fault Idaho, Utah · 357 km · 1–5 mm/yr
Reelfoot scarp and New Madrid seismic zone Arkansas, Kentucky, Missouri, Tennessee · seismic zone · not measured M 7.5 1811
Seattle fault Washington · 69 km · 0.2–1 mm/yr M 6.7 1965
Denali fault Alaska · 1,558 km · > 5 mm/yr M 7.2 1912
Palos Verdes fault California · 108 km · 1–5 mm/yr M 6.4 1933
Elsinore fault California · 306 km · > 5 mm/yr M 7.3 1892
Calaveras fault California · 156 km · > 5 mm/yr M 6.8 1868

Every mapped fault, by state

California 178 faults

San Andreas fault > 5 mm/yr · last 150 years
Elsinore fault > 5 mm/yr · last 150 years
San Gregorio fault > 5 mm/yr · < 15,000 years
Garlock fault > 5 mm/yr · last 150 years
San Jacinto fault > 5 mm/yr · last 150 years
Maacama fault > 5 mm/yr · last 150 years
Calaveras fault > 5 mm/yr · last 150 years
Sierra Madre fault > 5 mm/yr · last 150 years
Hayward fault > 5 mm/yr · last 150 years
Fish Lake Valley fault > 5 mm/yr · < 15,000 years
Little Salmon fault > 5 mm/yr · < 15,000 years
Mad River fault > 5 mm/yr · < 15,000 years
Brawley Seismic Zone > 5 mm/yr · last 150 years
Rodgers Creek fault > 5 mm/yr · < 15,000 years
Imperial fault > 5 mm/yr · last 150 years
San Cayetano fault > 5 mm/yr · < 15,000 years
Mattole Canyon fault > 5 mm/yr · < 15,000 years
Great Valley thrust fault system 1–5 mm/yr · last 150 years
Newport-Inglewood-Rose Canyon fault 1–5 mm/yr · last 150 years
San Clemente fault 1–5 mm/yr · < 15,000 years
Bartlett Springs fault system 1–5 mm/yr · last 150 years
Santa Ynez fault 1–5 mm/yr · < 15,000 years
Owens Valley fault 1–5 mm/yr · last 150 years
Hosgri fault 1–5 mm/yr · < 15,000 years
San Diego Trough fault 1–5 mm/yr · < 15,000 years
Pitas Point fault 1–5 mm/yr · < 15,000 years
Catalina fault 1–5 mm/yr · < 15,000 years
Palos Verdes fault 1–5 mm/yr · < 15,000 years
Panamint Valley fault 1–5 mm/yr · < 15,000 years
Northern Death Valley fault 1–5 mm/yr · < 15,000 years
Honey Lake fault 1–5 mm/yr · < 15,000 years
Greenville fault 1–5 mm/yr · last 150 years
Surprise Valley fault 1–5 mm/yr · < 15,000 years
Pinto Mountain fault (includes Morongo Valley fault) 1–5 mm/yr · < 15,000 years
San Pedro Basin fault 1–5 mm/yr · < 130,000 years
Ortigalita fault 1–5 mm/yr · < 15,000 years
Black Mountains fault 1–5 mm/yr · < 15,000 years
Warm Springs Valley fault 1–5 mm/yr · < 15,000 years
Santa Cruz fault 1–5 mm/yr · < 15,000 years
Dume fault 1–5 mm/yr · < 1.6 million years
Hunter Mountain- Saline Valley fault 1–5 mm/yr · < 15,000 years
Hat Creek fault 1–5 mm/yr · < 15,000 years
Bald Mountain-Big Lagoon fault 1–5 mm/yr · < 130,000 years
Hunting Creek-Berryessa fault system 1–5 mm/yr · last 150 years
Sargent fault 1–5 mm/yr · last 150 years
Southern Death Valley fault 1–5 mm/yr · < 15,000 years
Little Lake fault 1–5 mm/yr · last 150 years
White Wolf fault 1–5 mm/yr · last 150 years
Red Mountain fault 1–5 mm/yr · < 15,000 years
Almanor fault 1–5 mm/yr · < 130,000 years
Green Valley fault 1–5 mm/yr · last 150 years
Pleito fault 1–5 mm/yr · < 15,000 years
Round Valley fault 1–5 mm/yr · < 15,000 years
Santa Monica fault 1–5 mm/yr · < 15,000 years
Mayfield fault 1–5 mm/yr · < 15,000 years
Hilton Creek fault 1–5 mm/yr · last 150 years
Cleghorn fault 1–5 mm/yr · < 130,000 years
Owl Lake fault 1–5 mm/yr · < 15,000 years
Raymond fault 1–5 mm/yr · < 15,000 years
Genoa fault 1–5 mm/yr · < 15,000 years
Mono Lake fault 1–5 mm/yr · < 15,000 years
Concord fault 1–5 mm/yr · last 150 years
San Simeon fault 1–5 mm/yr · < 15,000 years
Hollywood fault 1–5 mm/yr · < 15,000 years
Southern Sierra Nevada fault 0.2–1 mm/yr · < 15,000 years
Lenwood-Lockhart fault 0.2–1 mm/yr · last 150 years
Helendale-South Lockhart fault 0.2–1 mm/yr · < 15,000 years
San Gabriel fault 0.2–1 mm/yr · < 15,000 years
Calico-Hidalgo fault 0.2–1 mm/yr · last 150 years
White Mountains fault 0.2–1 mm/yr · last 150 years
Pisgah-Bullion fault 0.2–1 mm/yr · last 150 years
Camp Rock-Emerson-Copper Mountain fault 0.2–1 mm/yr · last 150 years
Oak Ridge fault (offshore) 0.2–1 mm/yr · < 15,000 years
Smith Valley fault 0.2–1 mm/yr · < 15,000 years
Monterey Bay- Tularcitos fault 0.2–1 mm/yr · < 15,000 years
Zayante-Vergeles fault 0.2–1 mm/yr · < 15,000 years
Mission Ridge fault system 0.2–1 mm/yr · < 15,000 years
Algodones fault 0.2–1 mm/yr · < 15,000 years
Mohawk Valley fault 0.2–1 mm/yr · < 15,000 years
Cedar Mountain fault system 0.2–1 mm/yr · last 150 years
North Frontal thrust system 0.2–1 mm/yr · < 15,000 years
Santa Cruz Island fault 0.2–1 mm/yr · < 15,000 years
Malibu Coast fault 0.2–1 mm/yr · < 15,000 years
Blackwater fault 0.2–1 mm/yr · < 15,000 years
Los Osos fault 0.2–1 mm/yr · < 15,000 years
McArthur fault 0.2–1 mm/yr · < 15,000 years
West Tahoe-Dollar Point fault 0.2–1 mm/yr · < 15,000 years
Antelope Valley fault 0.2–1 mm/yr · < 15,000 years
Johnson Valley fault 0.2–1 mm/yr · last 150 years
Simi-Santa Rosa fault 0.2–1 mm/yr · < 15,000 years
Monte Vista-Shannon fault 0.2–1 mm/yr · < 15,000 years
Puente Hills blind thrust system 0.2–1 mm/yr · last 150 years
West Napa fault 0.2–1 mm/yr · last 150 years
Mid-Channel fault 0.2–1 mm/yr · < 15,000 years
Lavic Lake fault 0.2–1 mm/yr · last 150 years
Mesquite Lake fault 0.2–1 mm/yr · last 150 years
Pittville fault 0.2–1 mm/yr · < 15,000 years
Airport Lake fault 0.2–1 mm/yr · last 150 years
Noyo Basin fault 0.2–1 mm/yr · < 15,000 years
Silver Lake fault 0.2–1 mm/yr · < 15,000 years
Homestead Valley fault 0.2–1 mm/yr · last 150 years
Polaris fault 0.2–1 mm/yr · < 15,000 years
San Onofre fault 0.2–1 mm/yr · < 15,000 years
Pfeiffer Point fault 0.2–1 mm/yr · < 15,000 years
North Tahoe fault 0.2–1 mm/yr · < 15,000 years
Carlsbad fault 0.2–1 mm/yr · < 15,000 years
East Monterey Bay fault 0.2–1 mm/yr · < 15,000 years
Quien Sabe fault 0.2–1 mm/yr · < 15,000 years
Deep Springs fault 0.2–1 mm/yr · < 15,000 years
Fish Slough fault 0.2–1 mm/yr · < 15,000 years
Hartley Springs fault 0.2–1 mm/yr · last 150 years
Lake City fault 0.2–1 mm/yr · < 15,000 years
Burnt Mountain fault 0.2–1 mm/yr · last 150 years
Piedras Blancas blind fault 0.2–1 mm/yr · < 15,000 years
Verdugo fault 0.2–1 mm/yr · < 15,000 years
Robinson Creek fault 0.2–1 mm/yr · < 15,000 years
Eureka Peak fault 0.2–1 mm/yr · last 150 years
Rocky Ledge fault 0.2–1 mm/yr · < 15,000 years
Big Valley fault 0.2–1 mm/yr · last 150 years
Ventura fault 0.2–1 mm/yr · < 15,000 years
East Carson Valley fault < 0.2 mm/yr · last 150 years
Towne Pass fault < 0.2 mm/yr · < 15,000 years
Huntoon Valley fault system < 0.2 mm/yr · < 15,000 years
Pahrump fault < 0.2 mm/yr · < 15,000 years
Fort Sage fault < 0.2 mm/yr · last 150 years
Carslbad Ridge fault < 0.2 mm/yr · < 15,000 years
West Walker River fault < 0.2 mm/yr · < 15,000 years
Foothills fault system not measured · last 150 years
Kern Canyon fault not measured · < 15,000 years
San Juan fault not measured · < 15,000 years
Harper fault not measured · < 15,000 years
Tahoe-Sierra frontal fault not measured · < 1.6 million years
Oak Ridge fault not measured · < 15,000 years
Ash Hill fault not measured · < 15,000 years
Upper Long Valley fault not measured · < 15,000 years
Butano fault not measured · last 150 years
Bennett Valley fault not measured · < 15,000 years
San Gorgonio Pass fault not measured · < 15,000 years
Extra fault not measured · < 15,000 years
Alexander-Redwood Hill fault not measured · < 15,000 years
Bullion Mountains fault not measured · < 15,000 years
Manix fault not measured · last 150 years
Mecca Hills fault not measured · < 15,000 years
Northridge blind thrust not measured · last 150 years
Dog Valley fault not measured · last 150 years
Long Valley fault not measured · < 15,000 years
Wheeler Ridge fault not measured · < 15,000 years
Los Alamos fault not measured · < 15,000 years
San Joaquin Hills thrust not measured · < 15,000 years
Hidden Spring fault not measured · < 15,000 years
Indio Hills Fault Zone not measured · < 15,000 years
Konocti Bay fault not measured · < 15,000 years
Crafton Hills fault not measured · < 15,000 years
Edison fault not measured · last 150 years
Coachella Fan Fault Zone not measured · < 15,000 years
Mt. General fault not measured · < 15,000 years
Pleasanton fault not measured · < 15,000 years
Banning fault not measured · < 15,000 years
Cordelia fault not measured · < 15,000 years
Red Pass fault not measured · < 15,000 years
Yuha Well Fault Zone not measured · last 150 years
Indian Valley fault not measured · < 15,000 years
Long Canyon fault not measured · < 15,000 years
Serra fault not measured · < 15,000 years
Tres Pinos fault not measured · < 15,000 years
Corral Hollow-Carnegie fault not measured · < 15,000 years
Las Positas fault not measured · last 150 years
Skeleton Canyon fault not measured · < 15,000 years
Hot Springs fault not measured · < 15,000 years
Old Woman Springs fault not measured · < 15,000 years
Red Hill-Etiwanda Avenue fault not measured · < 15,000 years
Tank Canyon fault not measured · < 15,000 years
Yuha Basin faults not measured · last 150 years
Beaumont Plain fault not measured · < 15,000 years
Breckenridge fault not measured · last 150 years
Isla Vista fault not measured · < 15,000 years
Kern Front fault not measured · last 150 years
New Hope fault not measured · last 150 years

Nevada 92 faults

Fish Lake Valley fault > 5 mm/yr · < 15,000 years
Northern Death Valley fault 1–5 mm/yr · < 15,000 years
Honey Lake fault 1–5 mm/yr · < 15,000 years
Warm Springs Valley fault 1–5 mm/yr · < 15,000 years
Pyramid Lake fault 1–5 mm/yr · < 15,000 years
Mount Rose fault 1–5 mm/yr · < 15,000 years
Genoa fault 1–5 mm/yr · < 15,000 years
Kings Canyon fault 1–5 mm/yr · < 15,000 years
Peavine Peak fault 1–5 mm/yr · < 15,000 years
Steens fault 0.2–1 mm/yr · < 15,000 years
Wassuk Range fault 0.2–1 mm/yr · < 15,000 years
White Mountains fault 0.2–1 mm/yr · last 150 years
Dixie Valley fault 0.2–1 mm/yr · last 150 years
Benton Spring fault 0.2–1 mm/yr · < 15,000 years
Smith Valley fault 0.2–1 mm/yr · < 15,000 years
Simpson Park Mountains fault 0.2–1 mm/yr · < 15,000 years
Bonham Ranch fault 0.2–1 mm/yr · < 15,000 years
Antelope Valley fault 0.2–1 mm/yr · < 15,000 years
Granite Springs Valley fault 0.2–1 mm/yr · < 15,000 years
Sand Springs Range fault 0.2–1 mm/yr · < 15,000 years
Emigrant Peak fault 0.2–1 mm/yr · < 15,000 years
California Wash fault 0.2–1 mm/yr · < 15,000 years
Monte Cristo Valley fault 0.2–1 mm/yr · last 150 years
North Tahoe fault 0.2–1 mm/yr · < 15,000 years
Incline Village fault 0.2–1 mm/yr · < 15,000 years
Little Valley fault 0.2–1 mm/yr · < 15,000 years
Gerlach fault 0.2–1 mm/yr · < 15,000 years
McAfee Canyon fault 0.2–1 mm/yr · < 15,000 years
Santa Rosa Range fault system < 0.2 mm/yr · < 15,000 years
Warner Valley faults < 0.2 mm/yr · < 15,000 years
Shoshone Range fault < 0.2 mm/yr · < 15,000 years
Western Humboldt Range fault < 0.2 mm/yr · < 15,000 years
Montana Mountains/Desert Valley fault < 0.2 mm/yr · < 15,000 years
Hoppin Peaks fault < 0.2 mm/yr · < 15,000 years
Buena Vista Valley fault < 0.2 mm/yr · < 15,000 years
Ruby Mountains fault < 0.2 mm/yr · < 15,000 years
Carson lineament < 0.2 mm/yr · < 15,000 years
Rainbow Mountain fault < 0.2 mm/yr · last 150 years
Pleasant Valley fault < 0.2 mm/yr · last 150 years
Black Rock fault < 0.2 mm/yr · < 15,000 years
Cortez Mountains fault < 0.2 mm/yr · < 15,000 years
Rock Valley fault < 0.2 mm/yr · < 15,000 years
Grass Valley fault < 0.2 mm/yr · < 15,000 years
Crescent Dunes fault < 0.2 mm/yr · < 15,000 years
Dry Valley-Smoke Creek Ranch fault < 0.2 mm/yr · < 15,000 years
East Carson Valley fault < 0.2 mm/yr · last 150 years
West Spring Mountains fault < 0.2 mm/yr · < 15,000 years
Snake Valley faults < 0.2 mm/yr · < 15,000 years
Desatoya Mountains fault < 0.2 mm/yr · < 15,000 years
Hot Springs Mountains fault < 0.2 mm/yr · < 15,000 years
Carico Lake Valley fault < 0.2 mm/yr · < 15,000 years
Eastern Carson Sink fault < 0.2 mm/yr · < 15,000 years
Northern Monitor Valley fault < 0.2 mm/yr · < 15,000 years
Southern Snake Range fault < 0.2 mm/yr · < 15,000 years
Southern Spring Valley fault < 0.2 mm/yr · < 15,000 years
Buffalo Valley fault < 0.2 mm/yr · < 15,000 years
Huntoon Valley fault system < 0.2 mm/yr · < 15,000 years
Pahrump fault < 0.2 mm/yr · < 15,000 years
Preston fault < 0.2 mm/yr · < 15,000 years
Lone Mountain fault < 0.2 mm/yr · < 15,000 years
Eastern Humboldt Range fault < 0.2 mm/yr · < 15,000 years
Fairview fault < 0.2 mm/yr · last 150 years
Fox Range fault < 0.2 mm/yr · < 15,000 years
Golden Gate fault < 0.2 mm/yr · < 15,000 years
Southern Huntington Valley fault < 0.2 mm/yr · < 15,000 years
Squaw Hills fault < 0.2 mm/yr · < 15,000 years
Sulphur Spring fault < 0.2 mm/yr · < 15,000 years
Belted Range fault < 0.2 mm/yr · < 15,000 years
Hot Springs fault < 0.2 mm/yr · last 150 years
Sagouse fault < 0.2 mm/yr · < 15,000 years
Yucca Mountain faults, western group < 0.2 mm/yr · < 15,000 years
Gabbs Valley fault < 0.2 mm/yr · last 150 years
Western Roberts Mountains fault < 0.2 mm/yr · < 15,000 years
Spanish Springs Valley fault < 0.2 mm/yr · < 15,000 years
West Gate fault < 0.2 mm/yr · last 150 years
Tuscarora fault < 0.2 mm/yr · < 15,000 years
Tybo Well fault < 0.2 mm/yr · < 15,000 years
Eastgate fault < 0.2 mm/yr · < 15,000 years
Kumiva Valley fault < 0.2 mm/yr · < 15,000 years
Olinghouse fault < 0.2 mm/yr · last 150 years
Carson City fault < 0.2 mm/yr · < 15,000 years
Crescent Valley faults < 0.2 mm/yr · < 15,000 years
West Dry Lake fault < 0.2 mm/yr · < 15,000 years
Butte Valley fault < 0.2 mm/yr · < 15,000 years
Indian Head fault < 0.2 mm/yr · < 15,000 years
Rattlesnake Flat fault < 0.2 mm/yr · < 15,000 years
Louderback Mountains fault < 0.2 mm/yr · last 150 years
Northern Simpson Park Mountains fault < 0.2 mm/yr · < 15,000 years
Terraced Hills fault < 0.2 mm/yr · < 15,000 years
Central Monitor Valley fault < 0.2 mm/yr · < 15,000 years
Northern Virginia Range fault < 0.2 mm/yr · < 15,000 years
Eugene Mountains fault < 0.2 mm/yr · < 15,000 years

Alaska 47 faults

Alaska-Aleutian subduction zone > 5 mm/yr · last 150 years
Denali fault > 5 mm/yr · last 150 years
Fairweather fault system > 5 mm/yr · last 150 years
Transition fault > 5 mm/yr · < 15,000 years
Totschunda fault > 5 mm/yr · last 150 years
Malaspina fault (Chugach-St. Elias fold and thrust belt) > 5 mm/yr · < 130,000 years
Pamplona fault 1–5 mm/yr · < 15,000 years
Castle Mountain fault 1–5 mm/yr · < 15,000 years
Yakutat fault (also known as Foothills fault) 1–5 mm/yr · last 150 years
Chaix Hills fault (Chugach-St. Elias fold and thrust belt) 1–5 mm/yr · < 130,000 years
Kosakuts fault (Chugach-St. Elias fold and thrust belt) 1–5 mm/yr · < 130,000 years
Hope Creek fault (Chugach-St. Elias fold and thrust belt) 1–5 mm/yr · < 130,000 years
Patton Bay fault 1–5 mm/yr · last 150 years
Coal Glacier fault (Chugach-St. Elias fold and thrust belt) 1–5 mm/yr · < 130,000 years
White River syncline (Chugach-St. Elias fold and thrust belt) 1–5 mm/yr · < 130,000 years
Yakataga anticline (Chugach-St. Elias fold and thrust belt) 1–5 mm/yr · < 130,000 years
Boundary fault 1–5 mm/yr · < 1.6 million years
Cathedral Rapids faults (Northern Foothills fold and thrust belt) 1–5 mm/yr · < 15,000 years
Middle Ground Shoal anticline (Cook Inlet folds) 1–5 mm/yr · < 1.6 million years
Miller Creek fault (Chugach-St. Elias fold and thrust belt) 1–5 mm/yr · < 130,000 years
Dot ''T'' Johnson fault (Northern Foothills fold and thrust belt) 1–5 mm/yr · < 15,000 years
Susitna Glacier fault 1–5 mm/yr · last 150 years
Sullivan fault (Chugach-St. Elias fold and thrust belt) 1–5 mm/yr · < 130,000 years
Ten Fathom fault 1–5 mm/yr · < 1.6 million years
Ragged Mountain fault 1–5 mm/yr · < 15,000 years
Granite Mountain fault (Northern Foothills fold and thrust belt) 1–5 mm/yr · < 15,000 years
Kayak fault 1–5 mm/yr · < 1.6 million years
Donnelly Dome fault (Northern Foothills fold and thrust belt) 1–5 mm/yr · < 15,000 years
Granite Point anticline (Cook Inlet folds) 1–5 mm/yr · < 130,000 years
Yaga syncline (Chugach-St. Elias fold and thrust belt) 1–5 mm/yr · < 130,000 years
Canteen fault (Northern Foothills fold and thrust belt) 1–5 mm/yr · < 15,000 years
Wingham fault 1–5 mm/yr · < 1.6 million years
Northern Foothills thrust fault (Northern Foothills fold and thrust belt) 0.2–1 mm/yr · < 15,000 years
Bendeleben fault 0.2–1 mm/yr · < 15,000 years
Park Road fault (Northern Foothills fold and thrust belt) 0.2–1 mm/yr · < 15,000 years
Kigluaik fault 0.2–1 mm/yr · < 15,000 years
Molybdenum Ridge fault (Northern Foothills fold and thrust belt) 0.2–1 mm/yr · < 15,000 years
Camden Bay fault < 0.2 mm/yr · < 15,000 years
McGinnis Glacier fault (Northern Foothills fold and thrust belt) < 0.2 mm/yr · < 15,000 years
Pass Creek fault < 0.2 mm/yr · < 15,000 years
Billy Creek fault (Northern Foothills fold and thrust belt) < 0.2 mm/yr · < 15,000 years
Gulf of Alaska shear zone not measured · last 150 years
Tintina fault not measured · < 15,000 years
Atsaksovluk fault not measured · last 150 years
Rampart seismic zone not measured · last 150 years
Bancas Point fault not measured · last 150 years
Otmeloi fault not measured · last 150 years

Utah 43 faults

Wasatch fault 1–5 mm/yr · < 15,000 years
Bear River fault 1–5 mm/yr · < 15,000 years
Hurricane fault 0.2–1 mm/yr · < 15,000 years
Great Salt Lake fault 0.2–1 mm/yr · < 15,000 years
East Cache fault 0.2–1 mm/yr · < 15,000 years
Eastern Bear Lake fault 0.2–1 mm/yr · < 15,000 years
West Cache fault 0.2–1 mm/yr · < 15,000 years
Stansbury fault 0.2–1 mm/yr · < 15,000 years
Cedar City-Parowan monocline (and faults) 0.2–1 mm/yr · < 15,000 years
Southern Oquirrh Mountains fault 0.2–1 mm/yr · < 15,000 years
Oquirrh fault 0.2–1 mm/yr · < 15,000 years
West Valley fault 0.2–1 mm/yr · < 15,000 years
Sevier/Toroweap fault < 0.2 mm/yr · < 15,000 years
Washington fault < 0.2 mm/yr · < 15,000 years
Western Bear Lake fault < 0.2 mm/yr · < 15,000 years
Skull Valley (mid-valley) faults < 0.2 mm/yr · < 15,000 years
Drum Mountains fault < 0.2 mm/yr · < 15,000 years
House Range (west side) fault < 0.2 mm/yr · < 15,000 years
Snake Valley faults < 0.2 mm/yr · < 15,000 years
Gunnison fault < 0.2 mm/yr · < 15,000 years
San Francisco Mountains (west side) fault < 0.2 mm/yr · < 15,000 years
Cricket Mountains (west side) fault < 0.2 mm/yr · < 15,000 years
Southern Snake Range fault < 0.2 mm/yr · < 15,000 years
Beaver Basin faults < 0.2 mm/yr · < 15,000 years
Mineral Mountains (west side) faults < 0.2 mm/yr · < 15,000 years
Strawberry fault < 0.2 mm/yr · < 15,000 years
Utah Lake faults < 0.2 mm/yr · < 15,000 years
Fish Springs fault < 0.2 mm/yr · < 15,000 years
Pavant faults < 0.2 mm/yr · < 15,000 years
North Promontory fault < 0.2 mm/yr · < 15,000 years
Snow Lake graben < 0.2 mm/yr · < 15,000 years
Main Canyon fault < 0.2 mm/yr · < 15,000 years
Curlew Valley faults < 0.2 mm/yr · < 15,000 years
Little Valley faults < 0.2 mm/yr · < 15,000 years
Enoch graben faults < 0.2 mm/yr · < 15,000 years
Maple Grove faults < 0.2 mm/yr · < 15,000 years
Morgan fault < 0.2 mm/yr · < 15,000 years
Crater Bench faults < 0.2 mm/yr · < 15,000 years
Parowan Valley faults < 0.2 mm/yr · < 15,000 years
Pavant Range fault < 0.2 mm/yr · < 15,000 years
Annabella graben faults < 0.2 mm/yr · < 15,000 years
Hansel Valley fault < 0.2 mm/yr · last 150 years
Scipio fault < 0.2 mm/yr · < 15,000 years

Oregon 33 faults

Cascadia megathrust > 5 mm/yr · < 15,000 years
Blanco transform fault > 5 mm/yr · < 15,000 years
Daisy Bank fault > 5 mm/yr · < 15,000 years
Alvin Canyon fault > 5 mm/yr · < 15,000 years
Fault H > 5 mm/yr · < 15,000 years
Thompson Ridge fault > 5 mm/yr · < 15,000 years
Coos Basin fault > 5 mm/yr · < 15,000 years
Heceta Bank structure > 5 mm/yr · < 15,000 years
Cascadia fold and fault belt 1–5 mm/yr · < 15,000 years
Nehalem Bank fault 1–5 mm/yr · < 15,000 years
Stonewall anticline 1–5 mm/yr · < 15,000 years
Steens fault 0.2–1 mm/yr · < 15,000 years
Klamath graben fault system 0.2–1 mm/yr · < 15,000 years
Abert Rim fault 0.2–1 mm/yr · < 15,000 years
Cedar Mountain fault system 0.2–1 mm/yr · last 150 years
Southeast Newberry fault 0.2–1 mm/yr · < 15,000 years
Winter Rim fault system 0.2–1 mm/yr · < 15,000 years
Paulina Marsh faults 0.2–1 mm/yr · < 15,000 years
Coquille anticline 0.2–1 mm/yr · < 15,000 years
South Slough syncline 0.2–1 mm/yr · < 15,000 years
Santa Rosa Range fault system < 0.2 mm/yr · < 15,000 years
Warner Valley faults < 0.2 mm/yr · < 15,000 years
Hoppin Peaks fault < 0.2 mm/yr · < 15,000 years
Sky Lakes fault < 0.2 mm/yr · < 15,000 years
Wallula fault system < 0.2 mm/yr · < 15,000 years
East Grande Ronde Valley fault < 0.2 mm/yr · < 15,000 years
West Grande Ronde Valley fault < 0.2 mm/yr · < 15,000 years
Faults near Unity Valley < 0.2 mm/yr · < 15,000 years
Cottonwood Mountain fault < 0.2 mm/yr · < 15,000 years
West Baker Valley fault < 0.2 mm/yr · < 15,000 years
Mount Angel fault < 0.2 mm/yr · < 15,000 years
Juniper Mountain fault < 0.2 mm/yr · < 15,000 years
South Slough thrust and reverse faults < 0.2 mm/yr · < 15,000 years

Washington 26 faults

Cascadia megathrust > 5 mm/yr · < 15,000 years
North Ninitat fault > 5 mm/yr · < 15,000 years
South Ninitat fault > 5 mm/yr · < 130,000 years
Fault H > 5 mm/yr · < 15,000 years
Willapa Canyon fault > 5 mm/yr · < 1.6 million years
Cascadia fold and fault belt 1–5 mm/yr · < 15,000 years
Nehalem Bank fault 1–5 mm/yr · < 15,000 years
Seattle fault 0.2–1 mm/yr · < 15,000 years
Southern Whidbey Island fault 0.2–1 mm/yr · < 15,000 years
Tacoma fault 0.2–1 mm/yr · < 15,000 years
Saddle Mountain faults 0.2–1 mm/yr · < 15,000 years
Boulder Creek-Canyon Creek fault 0.2–1 mm/yr · < 15,000 years
Calawah fault < 0.2 mm/yr · < 15,000 years
Toppenish Ridge structures < 0.2 mm/yr · < 15,000 years
Wallula fault system < 0.2 mm/yr · < 15,000 years
Langley Hill fault < 0.2 mm/yr · < 15,000 years
Lake Creek-Boundary Creek fault < 0.2 mm/yr · < 15,000 years
Utsalady Point fault < 0.2 mm/yr · < 15,000 years
Saddle Hill fault < 0.2 mm/yr · < 15,000 years
Grays Harbor fault < 0.2 mm/yr · < 15,000 years
Olympia structure not measured · < 15,000 years
Rattlesnake Mountain fault not measured · < 15,000 years
Birch Bay fault not measured · < 15,000 years
Cherry Creek fault not measured · < 15,000 years
Sandy Point fault not measured · < 15,000 years
Oak Flat fault not measured · < 15,000 years

Idaho 18 faults

Wasatch fault 1–5 mm/yr · < 15,000 years
Grand Valley fault 0.2–1 mm/yr · < 15,000 years
Lemhi fault 0.2–1 mm/yr · < 15,000 years
Lost River fault 0.2–1 mm/yr · last 150 years
Madison fault 0.2–1 mm/yr · last 150 years
East Cache fault 0.2–1 mm/yr · < 15,000 years
Eastern Bear Lake fault 0.2–1 mm/yr · < 15,000 years
Centennial fault 0.2–1 mm/yr · < 15,000 years
Beaverhead fault < 0.2 mm/yr · < 15,000 years
Sawtooth fault < 0.2 mm/yr · < 15,000 years
Western Bear Lake fault < 0.2 mm/yr · < 15,000 years
Squaw Creek fault < 0.2 mm/yr · < 15,000 years
Big Flat fault < 0.2 mm/yr · < 15,000 years
Rush Peak fault < 0.2 mm/yr · < 15,000 years
Lone Pine fault < 0.2 mm/yr · last 150 years
Heise fault < 0.2 mm/yr · < 15,000 years
Curlew Valley faults < 0.2 mm/yr · < 15,000 years
Jakes Creek fault < 0.2 mm/yr · < 15,000 years

New Mexico 17 faults

Hubbell Spring fault 0.2–1 mm/yr · < 15,000 years
Organ Mountains fault 0.2–1 mm/yr · < 15,000 years
Alamogordo fault < 0.2 mm/yr · < 15,000 years
San Andres Mountains fault < 0.2 mm/yr · < 15,000 years
Southern Sangre de Cristo fault < 0.2 mm/yr · < 15,000 years
Jemez-San Ysidro fault < 0.2 mm/yr · < 15,000 years
East Franklin Mountains fault < 0.2 mm/yr · < 15,000 years
La Jencia fault < 0.2 mm/yr · < 15,000 years
Caballo fault < 0.2 mm/yr · < 15,000 years
Animas Valley faults < 0.2 mm/yr · < 15,000 years
Coyote Springs fault < 0.2 mm/yr · < 15,000 years
Cebollita Mesa fault < 0.2 mm/yr · < 15,000 years
Rincon fault < 0.2 mm/yr · < 15,000 years
Washburn Ranch fault < 0.2 mm/yr · < 15,000 years
Guaje Mountain fault < 0.2 mm/yr · < 15,000 years
Rendija Canyon fault < 0.2 mm/yr · < 15,000 years
Pajarito fault not measured · < 15,000 years

Wyoming 13 faults

Teton fault 1–5 mm/yr · < 15,000 years
Bear River fault 1–5 mm/yr · < 15,000 years
East Mount Sheridan faults 1–5 mm/yr · < 15,000 years
Grand Valley fault 0.2–1 mm/yr · < 15,000 years
Greys River fault 0.2–1 mm/yr · < 15,000 years
Rock Creek fault 0.2–1 mm/yr · < 15,000 years
Eagle Bay fault 0.2–1 mm/yr · < 15,000 years
Red Canyon fault 0.2–1 mm/yr · last 150 years
Mirror Plateau faults 0.2–1 mm/yr · < 15,000 years
Buffalo Fork fault < 0.2 mm/yr · < 15,000 years
Stagner Creek fault < 0.2 mm/yr · < 15,000 years
Upper Yellowstone Valley faults < 0.2 mm/yr · < 15,000 years
Chicken Springs faults < 0.2 mm/yr · < 15,000 years

Arizona 9 faults

Hurricane fault 0.2–1 mm/yr · < 15,000 years
Algodones fault 0.2–1 mm/yr · < 15,000 years
Sevier/Toroweap fault < 0.2 mm/yr · < 15,000 years
Pitaycachi fault < 0.2 mm/yr · last 150 years
Washington fault < 0.2 mm/yr · < 15,000 years
Big Chino fault < 0.2 mm/yr · < 15,000 years
Safford fault < 0.2 mm/yr · < 15,000 years
Horseshoe fault < 0.2 mm/yr · < 15,000 years
Seligman fault < 0.2 mm/yr · < 15,000 years

Colorado 9 faults

Northern Sangre de Cristo fault < 0.2 mm/yr · < 15,000 years
Southern Sangre de Cristo fault < 0.2 mm/yr · < 15,000 years
Sawatch fault < 0.2 mm/yr · < 15,000 years
Cheraw fault < 0.2 mm/yr · < 15,000 years
Gore Range frontal fault < 0.2 mm/yr · < 15,000 years
Roubideau Creek fault < 0.2 mm/yr · < 15,000 years
Villa Grove fault < 0.2 mm/yr · < 15,000 years
Busted Boiler fault < 0.2 mm/yr · < 15,000 years
Williams Fork Mountains fault < 0.2 mm/yr · < 15,000 years

Montana 8 faults

Mission fault 0.2–1 mm/yr · < 15,000 years
Madison fault 0.2–1 mm/yr · last 150 years
Centennial fault 0.2–1 mm/yr · < 15,000 years
Emigrant fault 0.2–1 mm/yr · < 15,000 years
Red Rock fault 0.2–1 mm/yr · < 15,000 years
Red Canyon fault 0.2–1 mm/yr · last 150 years
Hebgen fault 0.2–1 mm/yr · last 150 years
Bitterroot fault < 0.2 mm/yr · < 15,000 years

Hawaii 6 faults

Kilauea Volcano > 5 mm/yr · last 150 years
Mauna Loa Volcano > 5 mm/yr · last 150 years
Hilina fault system > 5 mm/yr · last 150 years
Lo'ihi Seamount > 5 mm/yr · last 150 years
Koa'e fault system > 5 mm/yr · last 150 years
Ka'oiki-Honu'apo fault system 1–5 mm/yr · < 15,000 years

Missouri 4 faults

Reelfoot scarp and New Madrid seismic zone not measured · last 150 years
St. Louis-Cape Girardeau liquefaction features not measured · < 15,000 years
Western Lowlands liquefaction features not measured · < 15,000 years
Faults of Thebes Gap area not measured · < 15,000 years

Illinois 3 faults

Wabash Valley liquefaction features not measured · < 15,000 years
St. Louis-Cape Girardeau liquefaction features not measured · < 15,000 years
Faults of Thebes Gap area not measured · < 15,000 years

Arkansas 2 faults

Reelfoot scarp and New Madrid seismic zone not measured · last 150 years
Western Lowlands liquefaction features not measured · < 15,000 years

Texas 2 faults

Amargosa fault < 0.2 mm/yr · < 15,000 years
East Franklin Mountains fault < 0.2 mm/yr · < 15,000 years

South Carolina 1 faults

Charleston liquefaction features not measured · last 150 years

Indiana 1 faults

Wabash Valley liquefaction features not measured · < 15,000 years

Kentucky 1 faults

Reelfoot scarp and New Madrid seismic zone not measured · last 150 years

Tennessee 1 faults

Reelfoot scarp and New Madrid seismic zone not measured · last 150 years

Virginia 1 faults

Central Virginia seismic zone not measured · < 15,000 years

Oklahoma 1 faults

Meers fault < 0.2 mm/yr · < 15,000 years

Massachusetts 1 faults

Newbury liquefaction features not measured · < 15,000 years

Faults: USGS Quaternary Fault and Fold Database, simplified for the web; faults that do not reach the surface are only included where USGS maps them. QuakeIndex does not forecast earthquakes.