Egan, SD has a very low earthquake risk, with a total of 1 earthquakes since 1931. The USGS database shows that there is a 0.49% chance of a major earthquake within 50km of Egan, SD within the next 50 years. The largest earthquake within 30 miles of Egan, SD was a 3.6 Magnitude in 1982.
View the probability of a major earthquake within the next 50 years in Egan, SD.
View the number of earthquake incidents in Egan, SD by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Egan, SD within 30 miles. All distances and depths in the table are measured in miles.