Illinois earthquakes

M3.3 earthquake 5 km W of Tamms, Illinois

A magnitude 3.3 earthquake struck 5 km W of Tamms, Illinois on Fri, Feb 15, 1985, 9:56 AM CST (15:56 UTC), 5 km (3 mi) below the surface.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.3 (md), minor
Local time
UTC
1985-02-15 15:56:10 UTC
Depth
5.3 km (3.3 mi), shallow
Epicenter
37.230° N, 89.330° 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: 13 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 1.910 km ESE of Marston, Missouri · 15194 days ago · 6 km deep · 85 km away
  2. 2.44 km NNE of Olive Branch, Illinois · 15190 days ago · 2 km deep · 2 km away
  3. 2.33 km WNW of Risco, Missouri · 15188 days ago · 3 km deep · 87 km away
  4. 1.76 km SSE of Marston, Missouri · 15188 days ago · 5 km deep · 88 km away
  5. 1.58 km SE of Marston, Missouri · 15178 days ago · 7 km deep · 87 km away
  6. 1.814 km E of Williamsville, Missouri · 15177 days ago · 9 km deep · 99 km away
  7. 2.07 km SE of Marston, Missouri · 15170 days ago · 5 km deep · 88 km away
  8. 1.84 km E of Marston, Missouri · 15169 days ago · 5 km deep · 82 km away
  9. 1.70 km N of Marston, Missouri · 15169 days ago · 5 km deep · 82 km away
  10. 1.6southeastern Missouri · 15159 days ago · 5 km deep · 88 km away
  11. 2.16 km ESE of Kevil, Kentucky · 15154 days ago · 11 km deep · 49 km away
  12. 1.52 km WNW of Marston, Missouri · 15151 days ago · 5 km deep · 83 km away
  13. 2.24 km ENE of Hayward, Missouri · 15145 days ago · 5 km deep · 94 km away

Before

  1. 2.16 km SW of Samburg, Tennessee · 15223 days ago · 4 km deep · 99 km away
  2. 1.92 km NNE of Marston, Missouri · 15223 days ago · 3 km deep · 80 km away
  3. 2.36 km ENE of Hayward, Missouri · 15230 days ago · 12 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nm602507 (also filed as usp0002bxq). Read Wed, Sep 30, 2026, 2:51 AM UTC.