Helena Valley West Central, MT has a high earthquake risk, with a total of 414 earthquakes since 1931. The USGS database shows that there is a 47.00% chance of a major earthquake within 50km of Helena Valley West Central, MT within the next 50 years. The largest earthquake within 30 miles of Helena Valley West Central, MT was a 5.8 Magnitude in 2017.
View the probability of a major earthquake within the next 50 years in Helena Valley West Central, MT.
View the number of earthquake incidents in Helena Valley West Central, MT by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Helena Valley West Central, MT within 30 miles. All distances and depths in the table are measured in miles.