During the past 40 years there have been two similar earthquakes in Illinois. In November of 1968 there was a 5.3 magnitude that was felt not only statewide but by 23 other states. In June of 1987 a magnitude 5.1 occurred. The most infamous earthquakes impacting the State of Illinois and many other states were between December of 1811 and February of 1812 when three major earthquakes occurred in the New Madrid Fault Zone causing major damage in Southern Illinois and the surrounding area.

Historical Map - Known Seismic Activity in Illinois