QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

6 km SE of Ridgely, Tennessee

· 8.1 km deep · released about 190 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lake County 14 kmDyer County 18 kmObion County 31 kmPemiscot County 31 kmFulton County 44 kmNew Madrid County 46 kmGibson County 52 kmCrockett County 52 kmLauderdale County 53 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 2.5 (md)
Depth
8.1 km below the surface
Felt
3 reports · strongest reported intensity II
Nearest
Lake County, 14 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 681 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 190 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 80,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 57,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.1× the energy of this one
  4. This earthquake M 2.5 about 190 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 36.2153, -89.4380. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lake County, TN 14 km (9 mi) SSE of here earthquakes near Lake County
Dyer County, TN 18 km (11 mi) N of here earthquakes near Dyer County
Obion County, TN 31 km (19 mi) WSW of here earthquakes near Obion County
Pemiscot County, MO 31 km (19 mi) E of here earthquakes near Pemiscot County
Fulton County, KY 44 km (27 mi) SSW of here earthquakes near Fulton County
New Madrid County, MO 46 km (29 mi) SSE of here earthquakes near New Madrid County

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

Aftershocks so far

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

  1. 1.7 5 km ESE of Marston, Missouri
  2. 1.6 8 km SSE of Ridgely, Tennessee
  3. 1.7 3 km SE of Marston, Missouri
  4. 2.6 4 km WSW of Howardville, Missouri
  5. 2.2 1 km N of Marston, Missouri
  6. 1.9 4 km WSW of Howardville, Missouri
  7. 1.8 2 km SSW of Ridgely, Tennessee
  8. 2.1 4 km WSW of Howardville, Missouri
  9. 3.0 4 km W of Howardville, Missouri
  10. 2.0 6 km ESE of Hayward, Missouri
  11. 2.2 1 km NNW of Cooter, Missouri
  12. 1.8 2 km NE of Marston, Missouri
  13. 1.7 6 km SSE of Ridgely, Tennessee
  14. 1.6 4 km ESE of Marston, Missouri
  15. 1.8 3 km NNE of Ridgely, Tennessee

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.