QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

7 km SSE of Ridgely, Tennessee

· 8.5 km deep · released about 180 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lake County 15 kmDyer County 18 kmPemiscot County 30 kmObion County 33 kmFulton County 45 kmNew Madrid County 47 kmLauderdale County 52 kmCrockett County 52 kmGibson 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
8.5 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Lake County, 15 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 792 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 180 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 86,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 61,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.4× the energy of this one
  4. This earthquake M 2.5 about 180 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 36.2058, -89.4547. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lake County, TN 15 km (9 mi) S of here earthquakes near Lake County
Dyer County, TN 18 km (11 mi) NNW of here earthquakes near Dyer County
Pemiscot County, MO 30 km (18 mi) E of here earthquakes near Pemiscot County
Obion County, TN 33 km (20 mi) WSW of here earthquakes near Obion County
Fulton County, KY 45 km (28 mi) SSW of here earthquakes near Fulton County
New Madrid County, MO 47 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

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

  1. 2.5 6 km SE of Ridgely, Tennessee
  2. 1.8 5 km W of Tiptonville, Tennessee
  3. 1.6 2 km SE of Ridgely, Tennessee
  4. 2.1 2 km SW of Caruthersville, Missouri
  5. 2.0 6 km ENE of Steele, Missouri
  6. 2.4 2 km NW of Ridgely, Tennessee
  7. 1.5 7 km ESE of Marston, Missouri
  8. 1.6 6 km NW of Ridgely, Tennessee
  9. 1.9 7 km ESE of Marston, Missouri
  10. 1.7 7 km SE of Marston, Missouri
  11. 1.7 8 km SSE of Ridgely, Tennessee
  12. 2.1 7 km ESE of Marston, Missouri
  13. 2.0 0 km NNW of Ridgely, Tennessee
  14. 2.3 9 km ENE of Steele, Missouri
  15. 1.8 6 km WNW of Tiptonville, 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.