Earthquake Maps

Map of Illinois April 18 earthquake in relation to the Wabash Valley Fault System

Map of Illinois April 18 earthquake in relation to the Wabash Valley Fault System

Earthquakes in Illinois of magnitude 4.5 or greater

This map shows historical earthquakes of Illinois (magnitude 4.5 or greater) from 1804 to 1987.Stover, Carl W., and Coffman, Jerry L. 1992, Seismicity of the United States, 1568-1989 (Revised). Denver, CO. United States Geological Survey Professional Paper 1527.

Fault systems of Illinois and neighboring states

This map shows the fault systems of Illinois and neighboring states.
Nelson, W. John. 1995, Structural Features In Illinois. Illinois State Geological Survey, Bulletin 100.