QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

4 km S of Grayville, Illinois

· 6.6 km deep · released about 64 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N White County 22 kmEdwards County 23 kmPosey County 24 kmWabash County 29 kmGibson County 38 kmVanderburgh County 42 kmWayne County 45 kmHamilton County 50 kmGallatin County 54 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
Magnitude
M 2.2 (md)
Depth
6.6 km below the surface
Felt
11 reports · strongest reported intensity II
Nearest
White County, 22 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 90 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 11 people have reported feeling it to USGS.

How big was it?

This earthquake released about 64 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 230,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 170,000× the energy of this one
  3. Around the size people start to feel M 3.0 15× the energy of this one
  4. This earthquake M 2.2 about 64 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.

Where

Epicentre 38.2188, -87.9945. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
White County, IL 22 km (14 mi) NE of here earthquakes near White County
Edwards County, IL 23 km (14 mi) SSE of here earthquakes near Edwards County
Posey County, IN 24 km (15 mi) NNW of here earthquakes near Posey County
Wabash County, IL 29 km (18 mi) SSW of here earthquakes near Wabash County
Gibson County, IN 38 km (23 mi) WSW of here earthquakes near Gibson County
Vanderburgh County, IN 42 km (26 mi) WNW of here earthquakes near Vanderburgh 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 9 km ENE of Uniontown, Kentucky
  5. 2.4 7 km NE of Mount Carmel, Illinois
  6. 2.1 4 km NW of Bone Gap, Illinois
  7. 2.4 4 km WSW of Enfield, Illinois
  8. 2.7 9 km E of Parkersburg, Illinois
  9. 2.5 4 km ESE of Parkersburg, Illinois
  10. 2.6 3 km SE of Springerton, Illinois
  11. 2.2 1 km E of Parkersburg, Illinois
  12. 3.8 4 km N of Bellmont, Illinois
  13. 3.1 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.