QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

1 km SSW of Pine Ridge, Alabama

· 15 km deep · released about 88 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N DeKalb County 4 kmChattooga County 41 kmJackson County 41 kmCherokee County 42 kmEtowah County 48 kmMarshall County 51 kmDade County 54 kmFloyd County 56 kmWalker County 56 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
15 km below the surface
Felt
6 reports · strongest reported intensity III
Nearest
DeKalb County, 4 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3488 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 6 people have reported feeling it to USGS.

How big was it?

This earthquake released about 88 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 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 88 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 34.4285, -85.7877. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
DeKalb County, AL 4 km (2 mi) SSE of here earthquakes near DeKalb County
Chattooga County, GA 41 km (25 mi) W of here earthquakes near Chattooga County
Jackson County, AL 41 km (26 mi) SSE of here earthquakes near Jackson County
Cherokee County, AL 42 km (26 mi) NNW of here earthquakes near Cherokee County
Etowah County, AL 48 km (30 mi) NNE of here earthquakes near Etowah County
Marshall County, AL 51 km (32 mi) ENE of here earthquakes near Marshall County

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

Aftershocks so far

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

  1. 2.1 1 km NW of Trion, Georgia
  2. 2.3 6 km WSW of Linwood, Georgia
  3. 2.2 8 km N of Menlo, Georgia
  4. 2.6 8 km N of Menlo, Georgia
  5. 2.3 6 km WSW of Linwood, Georgia
  6. 2.3 0 km NNE of Section, Alabama
  7. 2.0 2 km WNW of Menlo, Georgia
  8. 2.4 2 km WNW of Menlo, Georgia
  9. 1.5 12 km E of Mentone, Alabama
  10. 2.0 8 km N of Trion, Georgia
  11. 1.9 5 km SSE of Stevenson, Alabama
  12. 2.2 4 km SSE of Dutton, Alabama
  13. 2.1 10 km ENE of Mentone, Alabama
  14. 2.2 3 km WNW of Menlo, Georgia
  15. 2.4 8 km E of Skyline, 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.