QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

15 km ESE of Shelbyville, Kentucky

· 13 km deep · released about 120 lb of TNT

10 km30 km60 km120 km N Shelby County 17 kmAnderson County 17 kmFranklin County 20 kmSpencer County 25 kmWoodford County 30 kmHenry County 34 kmMercer County 41 kmOldham County 44 kmOwen County 44 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 2.4 (md)
Depth
13 km below the surface
Felt
12 reports · strongest reported intensity III
Nearest
Shelby County, 17 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2466 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 12 people have reported feeling it to USGS.

How big was it?

This earthquake released about 120 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.

  1. Mineral, Virginia 2011 M 5.8 120,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 86,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.7× the energy of this one
  4. This earthquake M 2.4 about 120 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 38.1467, -85.0712. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shelby County, KY 17 km (11 mi) SE of here earthquakes near Shelby County
Anderson County, KY 17 km (11 mi) NNW of here earthquakes near Anderson County
Franklin County, KY 20 km (13 mi) WSW of here earthquakes near Franklin County
Spencer County, KY 25 km (16 mi) ENE of here earthquakes near Spencer County
Woodford County, KY 30 km (19 mi) WNW of here earthquakes near Woodford County
Henry County, KY 34 km (21 mi) S of here earthquakes near Henry County

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

Aftershocks so far

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

  1. 2.4 3 km NNE of Chaplin, Kentucky
  2. 2.4 3 km NNE of Chaplin, Kentucky
  3. 2.3 3 km NNE of Chaplin, Kentucky

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.