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Earthquake Hazard Areas (U.S.)

North AmericaPhysical Environment

Areas in the United States with greater than 1% probability of potentially damaging ground shaking in one year

USGS

A map highlights earthquake hazard areas across the United States using a color-coded scheme to indicate different levels of hazard.

The lowest hazard areas are shaded in blue, covering parts of Texas, Florida, Iowa, North Dakota, and Wisconsin, as well as extreme northern regions of Alaska. Low hazard areas are shaded in purple, seen in regions such as parts of the eastern and middle United States, including Dallas, Chicago, and Washington D.C. Moderately low hazard areas are shaded in pink, found in central and northern Illinois, and spread across western parts including Oregon, Arizona, and New Mexico. Moderate hazard areas are shaded in orange, covering parts of the eastern and western regions, and most of Alaska. Moderately high hazard areas are shaded in yellow, covering regions such as the West Coast, including California, Oregon, and Washington, as well as Fairbanks in Alaska. High hazard areas are shaded in light brown, seen in parts of Anchorage and the western coastal regions. The highest hazard areas are shaded in dark brown, notably in regions like southern Alaska and parts of California, including the San Francisco and Los Angeles areas.

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Earthquake Hazard Areas (U.S.)

Land Cover

Ecological Regions: Level 2 Labels

Cobalt Mines

Lowest hazard

Low hazard

Moderately low hazard

Moderate hazard

Moderately high hazard

High hazard

Highest hazard

Evergreen forest

Deciduous forest

Water

Mixed forest

Shrublands

Savannas

Grasslands

Permanent wetlands

Urban and built-up

Cropland and natural vegetation

Snow and ice

Barren or sparsely vegetated

ALASKA BOREAL INTERIOR

ALASKA TUNDRA

ARCTIC CORDILLERA

ATLANTIC HIGHLANDS

BOREAL CORDILLERA

BOREAL PLAIN

BROOKS RANGE TUNDRA

CENTRAL USA PLAINS

COLD DESERTS

EVERGLADES

HUDSON PLAIN

MARINE WEST COAST FOREST

MEDITERRANEAN CALIFORNIA

MISSISSIPPI ALLUVIAL AND SOUTHEAST USA COASTAL PLAINS

MIXED WOOD PLAINS

MIXED WOOD SHIELD

NORTHERN ARCTIC

OZARK/OUACHITA-APPALACHIAN FORESTS

SOFTWOOD SHIELD

SOUTH CENTRAL SEMIARID PRAIRIES

SOUTHEASTERN USA PLAINS

SOUTHERN ARCTIC

TAIGA CORDILLERA

TAIGA PLAIN

TAIGA SHIELD

TEMPERATE PRAIRIES

TEXAS-LOUISIANA COASTAL PLAIN

UPPER GILA MOUNTAINS

WARM DESERTS

WEST-CENTRAL SEMIARID PRAIRIES

WESTERN CORDILLERA

WESTERN SIERRA MADRE PIEDMONT

Cobalt

District of Columbia
100%90.9%9.14%
New Hampshire
39.4%60.3%100%
Vermont
81.9%18.1%52.7%32.3%14.6%
Kentucky
7.69%64.8%10.2%7.55%1.03%3.57%34.2%65.3%
Louisiana
6.85%90.8%1.03%3.55%21.5%12.9%26.3%
Hawaii
7.50%6.67%9.71%4.93%52.2%57.1%
Kansas
42.9%9.98%76.0%8.38%
South Carolina
22.6%58.4%8.92%2.25%7.66%3.99%13.8%0.475%4.46%
Maryland
87.1%10.7%11.5%2.19%81.3%
Oklahoma
43.3%42.2%13.7%2.23%13.4%81.7%2.65%
Ohio
85.3%2.10%1.52%15.3%0.254%84.5%
Yukon
11.0%34.4%44.3%0.183%4.06%1
Northwest Territories
8.23%2.25%0.109%50.3%0.342%0.521%0.256%3111
Florida
87.3%10.9%0.732%69.7%6.73%2.76%0.989%11
Rhode Island
93.7%42.8%46.8%1
Wyoming
5.20%20.2%63.6%8.78%5.80%92.0%11
Nunavut
17.6%0.661%14.7%8204
North Dakota
98.6%1.38%23.6%1.29%1
Nova Scotia
77.1%2
Delaware
80.2%18.7%3.32%94.5%1
Prince Edward Island
54.0%1
Saskatchewan
40.6%5.40%2.31%7.63%4.39%36.0%1
Mississippi
46.6%33.2%16.6%3.37%29.5%9.44%22.9%1
West Virginia
66.8%33.2%96.2%1.85%1
Nebraska
33.8%2.42%1.45%60.9%39.1%1
Texas
54.2%29.7%7.88%16.6%11.5%63.9%0.593%0.322%211
North Carolina
5.87%47.3%35.4%9.17%1.38%2.93%0.571%11.8%22.1%11
New Brunswick
98.0%1
Wisconsin
95.7%4.01%5.34%0.733%24.3%69.7%1
Newfoundland and Labrador
22.0%15.0%29.3%14.1%2.34%1
New Jersey
17.9%69.2%10.9%15.9%31.5%35.6%7.11%1
Michigan
74.0%24.1%1.66%3.94%16.6%1.80%48.8%111
Alberta
24.3%30.3%0.208%3.41%0.266%11
Massachusetts
79.0%15.4%26.1%56.3%9.42%1
New York
31.8%35.5%13.6%7.01%27.2%0.385%15.0%0.153%0.584%21
Arkansas
17.3%39.7%21.2%1.93%2.11%7.50%10.7%33.2%2.79%0.791%52.5%11
South Dakota
27.5%53.6%8.87%1.78%57.1%41.1%1
Indiana
50.5%36.9%9.25%3.12%3.37%0.562%96.1%1
Iowa
92.6%7.45%100%1
Illinois
52.5%18.5%13.6%11.9%1.07%1.91%4.06%95.9%1
Alaska
2.85%1.92%2.33%38.6%2.01%5.60%5.27%0.877%0.260%33.1%23.3%3.90%0.194%28151623
Arizona
6.30%79.1%4.42%1.24%82.2%0.905%12.8%2.58%2112
Utah
12.7%56.8%6.12%1.39%1.37%71.1%6.04%112
Idaho
2.22%24.8%28.3%9.56%34.0%57.6%2.52%39
Washington
25.6%38.5%19.2%5.52%10.1%38.7%30.4%2.11%1215
Montana
20.1%5.22%15.0%22.0%2.02%18.5%76.4%1.52%136
Maine
63.3%7.54%98.8%13
Virginia
1.50%39.8%49.9%5.34%37.9%29.7%1.92%8.03%2
Missouri
8.53%41.8%23.6%11.8%7.42%1.26%5.55%13.6%1.69%84.7%33
Oregon
1.50%41.7%13.0%4.40%4.75%39.9%46.3%1.78%124
Alabama
2.82%40.6%43.3%7.23%1.53%41.9%10.2%1.99%12
New Mexico
7.73%4.90%54.5%8.67%2.71%48.6%33.8%0.141%41
British Columbia
2.06%10.9%4.59%0.944%0.141%0.358%0.225%5.56%11111
Connecticut
98.9%98.8%2
Pennsylvania
85.9%14.1%54.7%1.93%18.7%14
Colorado
5.33%26.1%34.0%32.6%7.58%0.276%88.5%17
Nevada
6.24%61.7%15.9%6.20%1.29%0.345%2.21%65.5%1.16%18
Georgia
4.38%39.2%43.9%10.4%1.79%2.03%1.36%6.94%16.9%1.91%2.16%0.313%2
Québec
5.39%3.99%38.7%9.24%4.66%1.11%1112112
Manitoba
37.5%3.53%5.69%25.2%2.44%3.56%13.2%8
Tennessee
28.9%15.6%11.5%1.92%8.15%23.2%3.17%14.9%1
Ontario
32.1%0.585%0.132%3.80%0.824%18.9%0.176%6.74%11139
California
3.21%9.22%1.48%1.10%28.4%25.6%27.5%1.33%8.18%1.87%10.1%0.505%21118
Minnesota
99.1%0.174%28.8%0.689%70.4%11
0.16.0