Surprise Valley Township, SD has a very low earthquake risk, with a total of 1 earthquakes since 1931. The USGS database shows that there is a 0.89% chance of a major earthquake within 50km of Surprise Valley Township, SD within the next 50 years. The largest earthquake within 30 miles of Surprise Valley Township, SD was a 3.1 Magnitude in 1998.
View the probability of a major earthquake within the next 50 years in Surprise Valley Township, SD.
View the number of earthquake incidents in Surprise Valley Township, SD by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Surprise Valley Township, SD within 30 miles. All distances and depths in the table are measured in miles.