QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

4 km NE of Stevenson, Alabama

· 17 km deep · released about 98 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jackson County 22 kmDade County 27 kmMarion County 32 kmFranklin County 40 kmDeKalb County 48 kmWalker County 49 kmGrundy County 56 kmCatoosa County 60 kmHamilton County 62 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
17 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Jackson County, 22 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 886 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 98 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 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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 34.8928, -85.8020. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jackson County, AL 22 km (13 mi) NE of here earthquakes near Jackson County
Dade County, GA 27 km (17 mi) W of here earthquakes near Dade County
Marion County, TN 32 km (20 mi) SW of here earthquakes near Marion County
Franklin County, TN 40 km (25 mi) SE of here earthquakes near Franklin County
DeKalb County, AL 48 km (30 mi) N of here earthquakes near DeKalb County
Walker County, GA 49 km (30 mi) WNW of here earthquakes near Walker County

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

Aftershocks so far

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

  1. 2.1 11 km ESE of Trenton, Georgia
  2. 2.4 12 km S of Tracy City, Tennessee
  3. 1.7 6 km W of Linwood, Georgia
  4. 2.3 6 km WSW of Linwood, Georgia
  5. 2.0 4 km NNE of Trenton, Georgia
  6. 2.3 3 km S of Lone Oak, Tennessee
  7. 2.2 6 km WNW of Linwood, Georgia
  8. 2.2 8 km N of Menlo, Georgia
  9. 2.6 8 km N of Menlo, Georgia
  10. 2.3 6 km WSW of Linwood, Georgia
  11. 1.8 2 km SW of Chickamauga, Georgia
  12. 2.3 0 km NNE of Section, Alabama
  13. 2.1 6 km SW of Bridgeport, 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.