St. Ignatius Earthquake Information
St. Ignatius Earthquake Risk Grade
The USGS database shows that there is a 66.715% chance of a major earthquake within 50 miles of St. Ignatius, Montana within the next 50 years. The largest earthquake within 50 miles of St. Ignatius, Montana was a 4.9 Magnitude in 1978.
Probability of earthquakes within the next 50 years
Within 31 Miles / 50km above magnitude
Historical Earthquake Data (Within 50 Miles)
All distances and depths in the table below are measured in miles.