United States
Earthquakes in Illinois
ShareUSGS recorded 1 earthquakes in and around Illinois in the last 30 days and 18 in the last year, counting everything of magnitude 1.0 and above. The strongest in that year measured M 3.8.
- Depth
- When (UTC)
- Local time
- Coordinates
Recent earthquakes in and around Illinois
Last 30 days, newest first as of 2026-08-10 17:03 UTC
| Magnitude | Location | Depth | When (UTC) |
|---|---|---|---|
| M 2.1 | 12 km ENE of Greenville, Missouri | 7.9 km deep | 2026-08-10 06:43 UTC |
The largest on record in and around Illinois
Since 1900, when the instrumental record becomes usable. The largest is M 5.3 at 5 km SSW of Norris City, Illinois on 1968-11-09: moderate: can damage poorly built structures.
Largest since 1900 USGS
| Magnitude | Location | Date | Depth |
|---|---|---|---|
| M 5.3 | 5 km SSW of Norris City, Illinois | 1968-11-09 | 15.7 km deep |
| M 5.2 | 7 km NNE of Bellmont, Illinois | 2008-04-18 | 14.3 km deep |
| M 5.2 | 2 km ESE of Claremont, Illinois | 1987-06-10 | 4.6 km deep |
| M 5.1 | Wabash River Valley, Indiana | 1909-09-27 | Not recorded |
| M 5.1 | Southwestern Illinois | 1917-04-09 | Not recorded |
| M 5.0 | Near Aurora, Illinois | 1909-05-26 | Not recorded |
| M 4.8 | 4 km SE of Raleigh, Illinois | 1922-11-27 | Not recorded |
| M 4.8 | 3 km NNW of Poseyville, Indiana | 1925-04-27 | Not recorded |
| M 4.8 | 9 km NNE of McClure, Illinois | 1922-03-22 | Not recorded |
| M 4.8 | 4 km SE of Chaffee, Missouri | 1990-09-26 | 1.0 km deep |
How these numbers were counted
Counts include every earthquake of magnitude 1.0 and above that USGS located in and around Illinois. The search is a latitude and longitude rectangle covering Illinois. No region is a rectangle, so events just outside the border can appear; each row shows the location text USGS published, which names the nearest town. Full method, including why counts from different places are not comparable.
Source: USGS Earthquake Hazards Program (FDSN event service). Retrieved 2026-08-10. Public domain.