M4.3 earthquake 6 km SSE of Cairo, Illinois
A magnitude 4.3 earthquake struck 6 km SSE of Cairo, Illinois on Mon, Sep 28, 1987, 7:04 PM CDT (00:04 UTC), 11 km (7 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (md), light
- Local time
- UTC
- 1987-09-29 00:04:56 UTC
- Depth
- 11.2 km (7.0 mi), shallow
- Epicenter
- 36.953° N, 89.159° W
- Region
- Illinois
- Strongest shaking
- VI, strong shaking
- PAGER alert
- Green
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VI, strong shaking
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
Estimated impact
The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.
- Alert level
- Green: little or no damage or loss of life expected
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: 7 in the 60 days after this one and 4 in the 30 days before it.
After
- 1.86 km S of Wickliffe, Kentucky · 14237 days ago · 7 km deep · 8 km away
- 1.78 km SSE of Wyatt, Missouri · 14236 days ago · 4 km deep · 13 km away
- 1.95 km NNW of Columbus, Kentucky · 14230 days ago · 11 km deep · 16 km away
- 3.85 km NW of Massac, Kentucky · 14223 days ago · 2 km deep · 35 km away
- 1.69 km ESE of Ridgely, Tennessee · 14222 days ago · 5 km deep · 84 km away
- 1.8southeastern Missouri · 14187 days ago · 6 km deep · 78 km away
- 2.59 km SE of Ridgely, Tennessee · 14180 days ago · 10 km deep · 87 km away
Before
Earthquakes todayIllinois earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event nm603237 (also filed as ushis4036, usp00038tt, atlas19870929000456). Read Tue, Sep 22, 2026, 8:40 AM UTC.