Illinois earthquakes

M2.8 earthquake 2 km NW of Olmsted, Illinois

A magnitude 2.8 earthquake struck 2 km NW of Olmsted, Illinois on Fri, Aug 24, 1990, 2:43 PM CDT (19:43 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.8 4 km SE of Chaffee, Missouri. This one was a foreshock.

Mounds forecastMore in Illinois

Map

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

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The earthquake

Magnitude
2.8 (Md, duration), micro
Magnitude from
NM
Local time
UTC
1990-08-24 19:43:50 UTC
Depth
4.9 km (3.0 mi), shallow
Epicenter
37.200° N, 89.110° 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: 19 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.60 km SE of Pulaski, Illinois · 13188 days ago · 5 km deep · 8 km away
  2. 1.96 km NNE of Parma, Missouri · 13186 days ago · 8 km deep · 84 km away
  3. 1.82 km W of Grand Chain, Illinois · 13186 days ago · 10 km deep · 8 km away
  4. 1.67 km ESE of Marston, Missouri · 13186 days ago · 4 km deep · 88 km away
  5. 1.66 km NW of Tiptonville, Tennessee · 13185 days ago · 11 km deep · 94 km away
  6. 2.25 km SSE of Catron, Missouri · 13183 days ago · 13 km deep · 86 km away
  7. 2.56 km S of Wyatt, Missouri · 13171 days ago · 8 km deep · 40 km away
  8. 2.25 km S of Wyatt, Missouri · 13171 days ago · 0 km deep · 39 km away
  9. 1.95 km NW of Tiptonville, Tennessee · 13168 days ago · 7 km deep · 95 km away
  10. 2.12 km NE of Pryorsburg, Kentucky · 13164 days ago · 2 km deep · 67 km away
  11. 4.84 km SE of Chaffee, Missouri · 13155 days ago · 1 km deep · 45 km away
  12. 2.34 km E of Dutchtown, Missouri · 13155 days ago · 16 km deep · 45 km away
  13. 2.84 km WSW of Kelso, Missouri · 13155 days ago · 15 km deep · 43 km away
  14. 2.14 km WNW of Tiptonville, Tennessee · 13149 days ago · 9 km deep · 96 km away
  15. 2.110 km ESE of Matthews, Missouri · 13149 days ago · 10 km deep · 62 km away
  16. 2.09 km NNW of Tiptonville, Tennessee · 13148 days ago · 4 km deep · 89 km away
  17. 1.68 km SE of Marston, Missouri · 13144 days ago · 7 km deep · 90 km away
  18. 2.26 km SW of Cape Girardeau, Missouri · 13135 days ago · 15 km deep · 42 km away
  19. 1.83 km NW of Samburg, Tennessee · 13128 days ago · 10 km deep · 92 km away

Before

  1. 1.912 km S of Equality, Illinois · 13191 days ago · 10 km deep · 85 km away
  2. 1.83 km E of Risco, Missouri · 13194 days ago · 0 km deep · 93 km away
  3. 1.99 km SSE of Marston, Missouri · 13194 days ago · 7 km deep · 93 km away
  4. 1.57 km SSE of Marston, Missouri · 13197 days ago · 6 km deep · 92 km away
  5. 2.69 km SE of Marston, Missouri · 13198 days ago · 10 km deep · 90 km away
  6. 3.15 km SSW of Wyatt, Missouri · 13206 days ago · 7 km deep · 40 km away
  7. 1.59 km ENE of Hayward, Missouri · 13207 days ago · 4 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nm603746. Read Fri, Oct 2, 2026, 6:57 PM UTC.