Earthquake Information for Ravalli County, Montana

Ravalli County, MT has a moderate earthquake risk, with a total of 2 earthquakes since 1931. The USGS database shows that there is a 15.24% chance of a major earthquake within 50km of Ravalli County, MT within the next 50 years. The largest earthquake within 30 miles of Ravalli County, MT was a 3.2 Magnitude in 1985.

Risk Level:
Moderate
Total Number of Earthquakes in Ravalli County since 1931
2
Probability of A 5.0 Earthquake within next 50 years
15.24%

Earthquake Probability for Ravalli County, MT

View the probability of a major earthquake within the next 50 years in Ravalli County, MT.

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
15.24%
5.1
12.88%
5.2
12.88%
5.2
10.85%
5.3
9.14%
5.4
7.68%
5.5
6.46%
5.6
5.43%
5.7
4.56%
5.8
3.83%
5.9
3.22%
6.0
2.71%
6.1
2.21%
6.2
1.80%
6.3
1.44%
6.4
1.14%
6.5
0.89%
6.6
0.67%
6.7
0.47%
6.8
0.29%
6.9
0.14%
7.0
0.00%
7.1
0.00%
7.2
0.00%
7.3
0.00%
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%