Dahlgren, IL has a moderate earthquake risk, with a total of 22 earthquakes since 1931. The USGS database shows that there is a 8.89% chance of a major earthquake within 50km of Dahlgren, IL within the next 50 years. The largest earthquake within 30 miles of Dahlgren, IL was a 3.5 Magnitude in 1978.
View the probability of a major earthquake within the next 50 years in Dahlgren, IL.
View the number of earthquake incidents in Dahlgren, IL by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Dahlgren, IL within 30 miles. All distances and depths in the table are measured in miles.