QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

5 km SW of Bremen, Kentucky

· 27 km deep · released about 250 lb of TNT

10 km30 km60 km120 km N Muhlenberg County 16 kmMcLean County 23 kmHopkins County 25 kmOhio County 40 kmWebster County 44 kmDaviess County 48 kmChristian County 52 kmButler County 53 kmTodd 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 2.6 (md)
Depth
27 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Muhlenberg County, 16 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2321 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 250 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 61,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 43,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.8× the energy of this one
  4. This earthquake M 2.6 about 250 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 37.3225, -87.2585. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Muhlenberg County, KY 16 km (10 mi) NW of here earthquakes near Muhlenberg County
McLean County, KY 23 km (14 mi) S of here earthquakes near McLean County
Hopkins County, KY 25 km (16 mi) E of here earthquakes near Hopkins County
Ohio County, KY 40 km (25 mi) WSW of here earthquakes near Ohio County
Webster County, KY 44 km (27 mi) ESE of here earthquakes near Webster County
Daviess County, KY 48 km (30 mi) SSW of here earthquakes near Daviess County

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

Aftershocks so far

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

  1. 2.5 7 km N of Nebo, Kentucky
  2. 2.5 7 km W of Calhoun, Kentucky
  3. 3.0 6 km W of Calhoun, Kentucky
  4. 2.4 6 km SW of Dixon, 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.