QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

8 km E of Skyline, Alabama

· 12 km deep · released about 110 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jackson County 7 kmFranklin County 38 kmDeKalb County 45 kmDade County 47 kmMadison County 49 kmMarion County 51 kmMoore County 61 kmMarshall County 63 kmLincoln County 63 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
12 km below the surface
Felt
2 reports · strongest reported intensity I
Nearest
Jackson County, 7 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2664 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 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 34.8192, -86.0208. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jackson County, AL 7 km (4 mi) NNW of here earthquakes near Jackson County
Franklin County, TN 38 km (24 mi) S of here earthquakes near Franklin County
DeKalb County, AL 45 km (28 mi) NNW of here earthquakes near DeKalb County
Dade County, GA 47 km (29 mi) W of here earthquakes near Dade County
Madison County, AL 49 km (30 mi) E of here earthquakes near Madison County
Marion County, TN 51 km (32 mi) SW of here earthquakes near Marion County

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

Aftershocks so far

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

  1. 2.4 12 km S of Tracy City, Tennessee
  2. 2.0 4 km NNE of Trenton, Georgia
  3. 2.3 0 km NNE of Section, Alabama
  4. 2.1 6 km SW of Bridgeport, Alabama
  5. 2.3 4 km NE of Stevenson, Alabama
  6. 2.5 7 km ENE of Stevenson, Alabama
  7. 2.5 6 km SSE of Sewanee, Tennessee
  8. 2.4 5 km SSW of Gurley, Alabama
  9. 1.9 5 km SSE of Stevenson, Alabama
  10. 2.2 4 km SSE of Dutton, Alabama
  11. 2.3 3 km WSW of Trenton, Georgia
  12. 2.4 10 km NNW of Kimball, Tennessee
  13. 2.8 7 km SSE of Sewanee, Tennessee
  14. 3.1 7 km SSE of Sewanee, Tennessee
  15. 2.3 10 km ESE of Moores Mill, 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.