Iroquois, IL has a very low earthquake risk, with a total of 0 earthquakes since 1931. The USGS database shows that there is a 0.46% chance of a major earthquake within 50km of Iroquois, IL within the next 50 years.
View the probability of a major earthquake within the next 50 years in Iroquois, IL.
See Illinois Earthquake Report or Iroquois County, IL Earthquake Report