Old Agency, MT has a high earthquake risk, with a total of 119 earthquakes since 1931. The USGS database shows that there is a 61.94% chance of a major earthquake within 50km of Old Agency, MT within the next 50 years. The largest earthquake within 30 miles of Old Agency, MT was a 4.4 Magnitude in 1975.
View the probability of a major earthquake within the next 50 years in Old Agency, MT.
View the number of earthquake incidents in Old Agency, MT by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Old Agency, MT within 30 miles. All distances and depths in the table are measured in miles.