Nilwood Township, IL has a low earthquake risk, with a total of 0 earthquakes since 1931. The USGS database shows that there is a 1.16% chance of a major earthquake within 50km of Nilwood Township, IL within the next 50 years.
View the probability of a major earthquake within the next 50 years in Nilwood Township, IL.
See Illinois Earthquake Report or Macoupin County, IL Earthquake Report