Riverside Township, SD has a very low earthquake risk, with a total of 0 earthquakes since 1931. The USGS database shows that there is a 0.27% chance of a major earthquake within 50km of Riverside Township, SD within the next 50 years.
View the probability of a major earthquake within the next 50 years in Riverside Township, SD.
See South-Dakota Earthquake Report or Brown County, SD Earthquake Report