Earthquake Information for Iron County, Utah

Iron County, UT has a high earthquake risk, with a total of 92 earthquakes since 1931. The USGS database shows that there is a 47.13% chance of a major earthquake within 50km of Iron County, UT within the next 50 years. The largest earthquake within 30 miles of Iron County, UT was a 4.2 Magnitude in 1981.

Risk Level:
High
Total Number of Earthquakes in Iron County since 1931
92
Probability of A 5.0 Earthquake within next 50 years
47.13%

Earthquake Probability for Iron County, UT

View the probability of a major earthquake within the next 50 years in Iron County, UT.

Probability of Earthquakes Within the Next 50 Years For Magnitudes Between 5.0 and 9.2
(within 31 km/51 miles above magnitude)
MAGNITUDE
PROBABILITY
5.0
47.13%
5.1
41.70%
5.2
41.70%
5.2
36.77%
5.3
32.34%
5.4
28.43%
5.5
25.00%
5.6
22.03%
5.7
19.46%
5.8
17.27%
5.9
15.39%
6.0
13.80%
6.1
12.26%
6.2
10.96%
6.3
9.82%
6.4
8.75%
6.5
7.66%
6.6
5.61%
6.7
3.52%
6.8
2.44%
6.9
1.23%
7.0
0.34%
7.1
0.16%
7.2
0.06%
7.3
0.02%
7.4
0.00%
7.5
0.00%
7.6
0.00%
7.7
0.00%
7.8
0.00%
7.9
0.00%
8.0
0.00%
8.1
0.00%
8.2
0.00%
8.3
0.00%
8.4
0.00%
8.5
0.00%
8.6
0.00%
8.7
0.00%
8.8
0.00%
8.9
0.00%
9.0
0.00%
9.1
0.00%
9.2
0.00%