Fort Thompson, SD has a low earthquake risk, with a total of 2 earthquakes since 1931. The USGS database shows that there is a 1.27% chance of a major earthquake within 50km of Fort Thompson, SD within the next 50 years. The largest earthquake within 30 miles of Fort Thompson, SD was a 4.4 Magnitude in 1983.
View the probability of a major earthquake within the next 50 years in Fort Thompson, SD.
View the number of earthquake incidents in Fort Thompson, SD by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Fort Thompson, SD within 30 miles. All distances and depths in the table are measured in miles.