QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

6 km W of Lexington, Alabama

· 1.1 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lauderdale County 20 kmLawrence County 29 kmColbert County 44 kmLimestone County 45 kmGiles County 45 kmWayne County 46 kmLawrence County 49 kmLewis County 62 kmFranklin County 69 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
1.1 km below the surface
Felt
5 reports · strongest reported intensity II
Nearest
Lauderdale County, 20 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2340 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 74 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 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 34.9643, -87.4393. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lauderdale County, AL 20 km (13 mi) ENE of here earthquakes near Lauderdale County
Lawrence County, TN 29 km (18 mi) S of here earthquakes near Lawrence County
Colbert County, AL 44 km (27 mi) NE of here earthquakes near Colbert County
Limestone County, AL 45 km (28 mi) WNW of here earthquakes near Limestone County
Giles County, TN 45 km (28 mi) SW of here earthquakes near Giles County
Wayne County, TN 46 km (29 mi) SE of here earthquakes near Wayne 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. 2.5 12 km NNE of Trinity, Alabama
  2. 2.1 3 km NE of Courtland, Alabama
  3. 2.4 11 km W of Elkton, Tennessee
  4. 2.3 8 km S of Killen, Alabama
  5. 1.7 5 km NNE of Underwood-Petersville, 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.