Casper Earthquake Information

Casper Earthquake Risk Grade

The USGS database shows that there is a 3.404% chance of a major earthquake within 50 miles of Casper, Wyoming within the next 50 years. The largest earthquake within 50 miles of Casper, Wyoming was a 5.5 Magnitude in 1984.

Probability of earthquakes within the next 50 years

Within 31 Miles / 50km above magnitude

Magnitude
Probability
5.0
3.404%
5.1
2.746%
5.2
2.746%
5.3
2.213%
5.4
1.783%
5.5
1.437%
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5.6
1.327%
5.7
1.069%
5.8
0.932%
5.9
0.751%
6.0
0.693%
6.1
0.529%
6.2
0.442%
6.3
0.322%
6.4
0.285%
6.5
0.192%
6.6
0.142%
6.7
0.118%
6.8
0.057%
6.9
0.031%
7.0
0.016%
7.1
0.006%
7.2
0.000%
7.3
0.000%
7.4
0.000%
7.5
0.000%
7.6
0.000%
7.7
0.000%
7.8
0.000%
7.9
0.000%
8.0
0.000%
8.1
0.000%
8.2
0.000%
8.3
0.000%
8.4
0.000%
8.5
0.000%
8.6
0.000%
8.7
0.000%
8.8
0.000%
8.9
0.000%
9.0
0.000%
9.1
0.000%
9.2
0.000%

Historical Earthquake Data (Within 50 Miles)

All distances and depths in the table below are measured in miles.