Earthquake near McLeansboro, IL

USGS: 6 km WNW of Enfield, Illinois

77 km (48 mi) WNW of Evansville, IN

6:10 pm CDT, Aug 11, 2016 · 2016-08-11 23:10 UTC · 10 km deep · released about 140 lb of TNT

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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: 6:10 pm CDT on 11 August 2016 (2016-08-11 23:10 UTC)
Where: 12 km (8 mi) ENE of McLeansboro, IL · earthquakes near McLeansboro
Magnitude: M 2.4 (md)
Depth: 10 km below the surface
Felt: 1 report · strongest reported intensity I
Nearest: Hamilton County, 13 km WSW
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 3704 days ago · we first saw it 3704 days ago

A magnitude 2.4 earthquake was recorded 12 km (8 mi) ENE of McLeansboro, IL, at 6:10 pm CDT on 11 August 2016 (23:10 UTC). 1 person has reported feeling it to USGS. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Norris City, Carmi, Wayne City.

How big was it?

This earthquake released about 140 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
Magna, Utah 2020 M 5.7 78,000× the energy of this one
Around the size people start to feel M 3.0 6.9× the energy of this one
This earthquake M 2.4 about 140 lb of TNT

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 one earthquake of M5 or more within 50 km:

5.3 5 km SSW of Norris City, Illinois · 21 km S of this epicentre Nov 9, 1968

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

Map loads when it scrolls into view

Nearby places

Place	Distance	Direction from the epicentre
Hamilton County, IL	13 km (8 mi)	WSW	earthquakes near Hamilton County
White County, IL	20 km (12 mi)	ESE	earthquakes near White County
Wayne County, IL	34 km (21 mi)	N	earthquakes near Wayne County
Gallatin County, IL	42 km (26 mi)	SSE	earthquakes near Gallatin County
Saline County, IL	43 km (27 mi)	SSW	earthquakes near Saline County
Edwards County, IL	45 km (28 mi)	NE	earthquakes near Edwards County

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

Aftershocks so far

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

2.1 5 km WNW of Grayville, Illinois 09:12 UTC
2.4 4 km WSW of Enfield, Illinois 03:10 UTC
2.1 9 km E of Thompsonville, Illinois 22:57 UTC
2.2 1 km S of Benton, Illinois 22:31 UTC
2.6 3 km SE of Springerton, Illinois 01:40 UTC
2.3 5 km NNW of Thompsonville, Illinois 12:27 UTC
2.1 7 km E of Thompsonville, Illinois 12:23 UTC
2.5 3 km SSE of Bluford, Illinois 09:41 UTC
2.0 7 km ENE of Pittsburg, Illinois 16:01 UTC
2.2 4 km S of Grayville, Illinois 09:45 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 02:06 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

The official USGS event page — the source of record for every value above
Did you feel it? Report it to USGS — reports go to USGS, not to us
ShakeMap for this event, when USGS has produced one

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