QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

4 km ESE of Parkersburg, Illinois

· 20 km deep · released about 190 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Richland County 16 kmEdwards County 18 kmWabash County 21 kmLawrence County 29 kmWayne County 40 kmClay County 45 kmGibson County 47 kmJasper County 49 kmCrawford 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
Magnitude
M 2.5 (md)
Depth
20 km below the surface
Felt
28 reports · strongest reported intensity III
Nearest
Richland County, 16 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1498 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 28 people have reported feeling it to USGS.

How big was it?

This earthquake released about 190 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 78,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 55,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.9× the energy of this one
  4. This earthquake M 2.5 about 190 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 38.5800, -88.0093. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Richland County, IL 16 km (10 mi) SSE of here earthquakes near Richland County
Edwards County, IL 18 km (11 mi) N of here earthquakes near Edwards County
Wabash County, IL 21 km (13 mi) NW of here earthquakes near Wabash County
Lawrence County, IL 29 km (18 mi) WSW of here earthquakes near Lawrence County
Wayne County, IL 40 km (25 mi) ENE of here earthquakes near Wayne County
Clay County, IL 45 km (28 mi) ESE of here earthquakes near Clay County

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

Aftershocks so far

9 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. 2.4 7 km NE of Mount Carmel, Illinois
  4. 2.1 4 km NW of Bone Gap, Illinois
  5. 2.7 9 km E of Parkersburg, Illinois
  6. 2.3 4 km E of Lawrenceville, Illinois
  7. 2.1 4 km E of Lawrenceville, Illinois
  8. 2.3 4 km E of Lawrenceville, Illinois
  9. 2.4 6 km SSW of Robinson, 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.