Earthquakes in Illinois

Illinois feels earthquakes from two intraplate sources — the New Madrid Seismic Zone to the south and the Wabash Valley Seismic Zone along the southeastern border. Most are small, but both zones have produced moderate quakes, and the flat midcontinent crust spreads their shaking across the state and beyond.

This page tracks live USGS seismic activity across Illinois — 12 cities including Chicago, Aurora, Rockford. The map and list above update continuously; open any city for a closer view with its own recent-quake and felt-radius detail.