QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

12 km WSW of Union, Alabama

· 0.5 km deep · released about 110 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Greene County 15 kmPickens County 38 kmSumter County 43 kmHale County 46 kmNoxubee County 51 kmKemper County 59 kmTuscaloosa County 61 kmLowndes County 68 kmPerry County 79 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
0.5 km below the surface
Felt
11 reports · strongest reported intensity IV
Nearest
Greene County, 15 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1716 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 110 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 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 95,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.5× the energy of this one
  4. This earthquake M 2.4 about 110 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 32.9572, -88.0460. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Greene County, AL 15 km (9 mi) NNW of here earthquakes near Greene County
Pickens County, AL 38 km (24 mi) S of here earthquakes near Pickens County
Sumter County, AL 43 km (26 mi) NNE of here earthquakes near Sumter County
Hale County, AL 46 km (28 mi) WNW of here earthquakes near Hale County
Noxubee County, MS 51 km (32 mi) ESE of here earthquakes near Noxubee County
Kemper County, MS 59 km (37 mi) ENE of here earthquakes near Kemper County

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

Aftershocks so far

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

  1. 2.4 13 km W of Union, Alabama
  2. 2.1 11 km SSW of Tuscaloosa, Alabama

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.