West Shannon, SD has a low earthquake risk, with a total of 3 earthquakes since 1931. The USGS database shows that there is a 1.23% chance of a major earthquake within 50km of West Shannon, SD within the next 50 years. The largest earthquake within 30 miles of West Shannon, SD was a 4.0 Magnitude in 1990.
View the probability of a major earthquake within the next 50 years in West Shannon, SD.
View the number of earthquake incidents in West Shannon, SD by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in West Shannon, SD within 30 miles. All distances and depths in the table are measured in miles.