QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

21 km S of Berry, Alabama

· 9.0 km deep · released about 82 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tuscaloosa County 21 kmFayette County 32 kmWalker County 44 kmPickens County 51 kmLamar County 58 kmJefferson County 65 kmBibb County 66 kmGreene County 78 kmWinston 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 2.3 (md)
Depth
9.0 km below the surface
Felt
no reports yet
Nearest
Tuscaloosa County, 21 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3333 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 82 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 82 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 33.4708, -87.5855. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tuscaloosa County, AL 21 km (13 mi) NNW of here earthquakes near Tuscaloosa County
Fayette County, AL 32 km (20 mi) SSE of here earthquakes near Fayette County
Walker County, AL 44 km (28 mi) SW of here earthquakes near Walker County
Pickens County, AL 51 km (32 mi) ENE of here earthquakes near Pickens County
Lamar County, AL 58 km (36 mi) SE of here earthquakes near Lamar County
Jefferson County, AL 65 km (40 mi) W of here earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 2.2 15 km W of Rock Creek, Alabama
  2. 2.1 11 km SSW of Tuscaloosa, Alabama
  3. 2.5 1 km W of Belk, Alabama
  4. 2.9 4 km NNW of Berry, Alabama
  5. 2.5 21 km W of Rock Creek, 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.