QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

Earthquake near Mount Carmel, IL

No earthquake was likely felt in Mount Carmel in the 24 hours to 3:54 am CST (09:54 UTC). The last one was M 3.5, 24 km (15 mi) NW, at 2:05 am CDT on 29 June 2026, estimated intensity III (weak) in town; 392 felt reports to USGS. Every earthquake near Mount Carmel

This page: a magnitude 3.1 earthquake was recorded 13 km (8 mi) west of Mount Carmel, IL, at 11:15 pm CDT on 8 September 2017 (04:15 UTC), 12 km deep. 136 people have reported feeling it to USGS.

USGS: 4 km N of Bellmont, Illinois

59 km (37 mi) NW of Evansville, IN

11:15 pm CDT, Sep 8, 2017 · · 12 km deep · released about 1,200 lb of TNT

10 km30 km60 km120 km N Wabash County 7 kmEdwards County 12 kmGibson County 31 kmRichland County 35 kmLawrence County 36 kmWhite County 44 kmPosey County 44 kmWayne County 45 kmKnox County 52 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
11:15 pm CDT on 8 September 2017 ()
Where
13 km (8 mi) west of Mount Carmel, IL · earthquakes near Mount Carmel
Illinois today
every earthquake in Illinois in the last 24 hours
Magnitude
M 3.1 (md)
Depth
12 km below the surface
Felt
136 reports · strongest reported intensity IV
Nearest
Wabash County, 7 km ENE
Nearest mapped fault
Wabash Valley liquefaction features, under 1 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3239 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 76 km (47 mi) from the epicentre. In Mount Carmel, 13 km away, the estimate is intensity III (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Albion, Grayville, Owensville.

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 290,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 13,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,100× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.2× more

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.2 2 km ESE of Claremont, Illinois · 32 km N of this epicentre
  2. 5.2 7 km NNE of Bellmont, Illinois · 4 km NE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 38.4250, -87.9130. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Wabash County, IL 7 km (4 mi) ENE earthquakes near Wabash County
Edwards County, IL 12 km (7 mi) W earthquakes near Edwards County
Gibson County, IN 31 km (19 mi) ESE earthquakes near Gibson County
Richland County, IL 35 km (22 mi) NNW earthquakes near Richland County
Lawrence County, IL 36 km (23 mi) NNE earthquakes near Lawrence County
White County, IL 44 km (27 mi) SSW earthquakes near White County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

13 earthquakes have been recorded within 50 km since this one.

  1. 3.5 6 km NE of West Salem, Illinois
  2. 2.1 5 km WNW of Grayville, Illinois
  3. 2.6 2 km ESE of Cynthiana, Indiana
  4. 2.4 7 km NE of Mount Carmel, Illinois
  5. 2.1 4 km NW of Bone Gap, Illinois
  6. 2.7 9 km E of Parkersburg, Illinois
  7. 2.3 4 km E of Lawrenceville, Illinois
  8. 2.1 4 km E of Lawrenceville, Illinois
  9. 2.3 4 km E of Lawrenceville, Illinois
  10. 2.5 4 km ESE of Parkersburg, Illinois
  11. 2.6 3 km SE of Springerton, Illinois
  12. 2.2 1 km E of Parkersburg, Illinois
  13. 3.8 4 km N of Bellmont, Illinois

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.