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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

Carbonate Outcrops

Desalinization Plants

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

Carbonate Outcrops

Desalinization Plants

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Desalinization Plants

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District of Columbia
100%90.9%9.14%
New Hampshire
39.4%60.3%100%
Rhode Island
93.7%42.8%46.8%
Wyoming
5.20%20.2%63.6%8.78%5.80%92.0%
Montana
20.1%5.22%15.0%22.0%2.02%18.5%76.4%1.52%
Kentucky
7.69%64.8%10.2%7.55%1.03%3.57%34.2%65.3%
Nova Scotia
77.1%
Virginia
1.50%39.8%49.9%5.34%37.9%29.7%1.92%8.03%
Delaware
80.2%18.7%3.32%94.5%
Prince Edward Island
54.0%
Saskatchewan
40.6%5.40%2.31%7.63%4.39%36.0%
Mississippi
46.6%33.2%16.6%3.37%29.5%9.44%22.9%
West Virginia
66.8%33.2%96.2%1.85%
Nebraska
33.8%2.42%1.45%60.9%39.1%
Missouri
8.53%41.8%23.6%11.8%7.42%1.26%5.55%13.6%1.69%84.7%
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%
Alabama
2.82%40.6%43.3%7.23%1.53%41.9%10.2%1.99%
New Mexico
7.73%4.90%54.5%8.67%2.71%48.6%33.8%0.141%
Wisconsin
95.7%4.01%5.34%0.733%24.3%69.7%
South Carolina
22.6%58.4%8.92%2.25%7.66%3.99%13.8%0.475%4.46%
Alberta
24.3%30.3%0.208%3.41%0.266%
Connecticut
98.9%98.8%
Pennsylvania
85.9%14.1%54.7%1.93%18.7%
New York
31.8%35.5%13.6%7.01%27.2%0.385%15.0%0.153%0.584%
Maryland
87.1%10.7%11.5%2.19%81.3%
Manitoba
37.5%3.53%5.69%25.2%2.44%3.56%13.2%
Oklahoma
43.3%42.2%13.7%2.23%13.4%81.7%2.65%
Arkansas
17.3%39.7%21.2%1.93%2.11%7.50%10.7%33.2%2.79%0.791%52.5%
South Dakota
27.5%53.6%8.87%1.78%57.1%41.1%
Indiana
50.5%36.9%9.25%3.12%3.37%0.562%96.1%
Minnesota
99.1%0.174%28.8%0.689%70.4%
Illinois
52.5%18.5%13.6%11.9%1.07%1.91%4.06%95.9%
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%3
Arizona
6.30%79.1%4.42%1.24%82.2%0.905%12.8%2.58%2
Yukon
11.0%34.4%44.3%0.183%4.06%2
Northwest Territories
8.23%2.25%0.109%50.3%0.342%0.521%0.256%1
Idaho
2.22%24.8%28.3%9.56%34.0%57.6%2.52%2
Vermont
81.9%18.1%52.7%32.3%14.6%3
Washington
25.6%38.5%19.2%5.52%10.1%38.7%30.4%2.11%4
Nunavut
17.6%0.661%14.7%1
Maine
63.3%7.54%98.8%3
Oregon
1.50%41.7%13.0%4.40%4.75%39.9%46.3%1.78%8
New Brunswick
98.0%1
British Columbia
2.06%10.9%4.59%0.944%0.141%0.358%0.225%5.56%5
Newfoundland and Labrador
22.0%15.0%29.3%14.1%2.34%4
Nevada
6.24%61.7%15.9%6.20%1.29%0.345%2.21%65.5%1.16%15
Québec
5.39%3.99%38.7%9.24%4.66%1.11%5
Ontario
32.1%0.585%0.132%3.80%0.824%18.9%0.176%6.74%2
Utah
12.7%56.8%6.12%1.39%1.37%71.1%6.04%61
Florida
87.3%10.9%0.732%69.7%6.73%2.76%0.989%21111121121
North Dakota
98.6%1.38%23.6%1.29%111
Texas
54.2%29.7%7.88%16.6%11.5%63.9%0.593%0.322%121111111112111
North Carolina
5.87%47.3%35.4%9.17%1.38%2.93%0.571%11.8%22.1%321
Kansas
42.9%9.98%76.0%8.38%111
New Jersey
17.9%69.2%10.9%15.9%31.5%35.6%7.11%11
Michigan
74.0%24.1%1.66%3.94%16.6%1.80%48.8%21
Colorado
5.33%26.1%34.0%32.6%7.58%0.276%88.5%1111
Massachusetts
79.0%15.4%26.1%56.3%9.42%1
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%1
Tennessee
28.9%15.6%11.5%1.92%8.15%23.2%3.17%14.9%1
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%61111111111111
Ohio
85.3%2.10%1.52%15.3%0.254%84.5%111
Iowa
92.6%7.45%100%111111
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