Illinois earthquakes

M3.2 earthquake 2 km NE of Walnut Hill, Illinois

A magnitude 3.2 earthquake struck 2 km NE of Walnut Hill, Illinois on Sun, Dec 29, 1985, 2:56 AM CST (08:56 UTC), 1 km (1 mi) below the surface.

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The earthquake

Magnitude
3.2 (md), minor
Local time
UTC
1985-12-29 08:56:58 UTC
Depth
1.0 km (0.6 mi), shallow
Epicenter
38.490° N, 89.020° W
Region
Illinois
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
From location

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nm602710 (also filed as usp0002pjb). Read Tue, Sep 22, 2026, 7:24 AM UTC.