Earthquake Risk in Illinois
Illinois faces seismic risk from the New Madrid Seismic Zone in its southern region and the Wabash Valley Seismic Zone in the southeast.
The largest earthquake recorded in Illinois was a magnitude 5.2 7 km NNE of Bellmont, Illinois on April 18, 2008. Illinois has 15 notable earthquakes on record since 2004, with the most recent being a M3.8 on January 20, 2026.
Notable Earthquakes
15
Recorded in or near Illinois (since 2004)
Largest Earthquake
M5.2
7 km NNE of Bellmont, Illinois (Apr 2008)
Most Recent
M3.8
Jan 20, 2026
Notable Earthquakes
Significant earthquakes recorded in or near this state.
| Magnitude | Location | Depth | Date |
|---|---|---|---|
| M5.2 | 7 km NNE of Bellmont, Illinois | 14.2 km | Apr 18, 2008 |
| M4.7 | 9 km NNE of Bellmont, Illinois | 15.5 km | Apr 18, 2008 |
| M4.2 | 12 km NW of Dayton, Illinois | 10.0 km | Jun 28, 2004 |
| M4.0 | 7 km S of Williamsville, Missouri | 16.5 km | Nov 18, 2021 |
| M4.0 | 7 km NNE of Bellmont, Illinois | 18.3 km | Apr 21, 2008 |
| M3.9 | 18 km NNW of Potosi, Missouri | 20.8 km | Jun 7, 2011 |
| M3.8 | 4 km NW of Ohlman, Illinois | 8.8 km | Jan 20, 2026 |
| M3.8 | 4 km N of Bellmont, Illinois | 11.7 km | Sep 19, 2017 |
| M3.8 | 2 km NW of Lily Lake, Illinois | 10.0 km | Feb 10, 2010 |
| M3.7 | 8 km NNE of Bellmont, Illinois | 13.0 km | Apr 25, 2008 |
| M3.6 | 1 km SSW of Standard, Illinois | 5.7 km | Nov 15, 2023 |
| M3.6 | 7 km N of Bellmont, Illinois | 18.6 km | Nov 20, 2012 |
| M3.6 | 3 km NNE of Eldorado, Illinois | 7.3 km | Jan 2, 2006 |
| M3.6 | 4 km WSW of Blandville, Kentucky | 18.7 km | Jun 20, 2005 |
| M3.5 | 5 km SE of New Grand Chain, Illinois | 16.3 km | May 1, 2016 |
Cities in Illinois
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