QuakeIndex

mining explosion · reviewed by a seismologist

M 2.6mb_lg

Earthquake near Evansville, IN

No earthquake was likely felt in Evansville in the 24 hours to 5:13 am CST (11:13 UTC). The last one was M 3.5, 74 km (46 mi) NNW, at 2:05 am CDT on 29 June 2026, estimated intensity II (weak) in town; 392 felt reports to USGS. Every earthquake near Evansville

No: USGS classifies this as a mining explosion, not an earthquake. A magnitude 2.6 mining explosion was recorded 33 km (20 mi) east-northeast of Evansville, IN, at 5:23 pm CDT on 18 October 2017 (22:23 UTC), less than 1 km deep.

USGS: 8 km SE of Lynnville, Indiana

30 km (19 mi) ENE of Evansville, IN · 139 km (87 mi) W of Louisville/Jefferson County, KY

5:23 pm CDT, Oct 18, 2017 · · 0.0 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Warrick County 5 kmSpencer County 24 kmPike County 30 kmVanderburgh County 33 kmGibson County 36 kmDubois County 42 kmDaviess County 47 kmHenderson County 48 kmHancock County 51 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
5:23 pm CDT on 18 October 2017 ()
Where
33 km (20 mi) east-northeast of Evansville, IN · earthquakes near Evansville
Magnitude
M 2.6 (mb_lg)
Depth
0.0 km below the surface
Felt
no reports yet
Nearest
Warrick County, 5 km SW
Nearest mapped fault
Wabash Valley liquefaction features, 15 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 3226 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 51 km (32 mi) from the epicentre. In Evansville, 33 km away, the estimate is intensity II (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: Boonville, Chandler, Oakland City, Newburgh, Melody Hill, Santa Claus.

USGS catalogues this as mining explosion, not an earthquake.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 since 1900 lists no earthquake of M5 or more within 50 km.

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 38.1317, -87.2417. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Warrick County, IN 5 km (3 mi) SW earthquakes near Warrick County
Spencer County, IN 24 km (15 mi) ESE earthquakes near Spencer County
Pike County, IN 30 km (18 mi) N earthquakes near Pike County
Vanderburgh County, IN 33 km (20 mi) WSW earthquakes near Vanderburgh County
Gibson County, IN 36 km (22 mi) NW earthquakes near Gibson County
Dubois County, IN 42 km (26 mi) NE earthquakes near Dubois County

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

Aftershocks so far

1 earthquake has been recorded within 50 km since this one.

  1. 2.6 2 km ESE of Cynthiana, Indiana

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.