Hamilton County, IL has a moderate earthquake risk, with a total of 2 earthquakes since 1931. The USGS database shows that there is a 9.48% chance of a major earthquake within 50km of Hamilton County, IL within the next 50 years. The largest earthquake within 30 miles of Hamilton County, IL was a 4.1 Magnitude in 1984.
View the probability of a major earthquake within the next 50 years in Hamilton County, IL.
View the number of earthquake incidents in Hamilton County, IL by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Hamilton County, IL within 30 miles. All distances and depths in the table are measured in miles.