Rapid City, SD has a very low earthquake risk, with a total of 3 earthquakes since 1931. The USGS database shows that there is a 0.89% chance of a major earthquake within 50km of Rapid City, SD within the next 50 years. The largest earthquake within 30 miles of Rapid City, SD was a 3.7 Magnitude in 1996.
View the probability of a major earthquake within the next 50 years in Rapid City, SD.
View the number of earthquake incidents in Rapid City, SD by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Rapid City, SD within 30 miles. All distances and depths in the table are measured in miles.