Earthquake Information for Boulder, Montana

Boulder, MT has a high earthquake risk, with a total of 483 earthquakes since 1931. The USGS database shows that there is a 59.57% chance of a major earthquake within 50km of Boulder, MT within the next 50 years. The largest earthquake within 30 miles of Boulder, MT was a 4.5 Magnitude in 1977.

Risk Level:
High
Total Number of Earthquakes in Boulder since 1931 within 30 miles
483
Probability of A 5.0 Earthquake within next 50 years
59.57%

Earthquake Probability for Boulder, MT

View the probability of a major earthquake within the next 50 years in Boulder, 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
59.57%
5.1
53.04%
5.2
53.04%
5.2
46.82%
5.3
41.02%
5.4
35.72%
5.5
30.94%
5.6
26.71%
5.7
22.98%
5.8
19.74%
5.9
16.94%
6.0
14.54%
6.1
12.19%
6.2
10.19%
6.3
8.40%
6.4
6.88%
6.5
5.50%
6.6
4.13%
6.7
2.95%
6.8
1.88%
6.9
0.90%
7.0
0.11%
7.1
0.04%
7.2
0.01%
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%