QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

2 km E of Ridgely, Tennessee

· 6.6 km deep · released about 160 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lake County 8 kmDyer County 24 kmPemiscot County 29 kmObion County 30 kmFulton County 41 kmNew Madrid County 41 kmDunklin County 55 kmGibson County 56 kmLauderdale County 58 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
6.6 km below the surface
Felt
4 reports · strongest reported intensity II
Nearest
Lake County, 8 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2573 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 160 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 92,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 65,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.8× the energy of this one
  4. This earthquake M 2.5 about 160 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 36.2630, -89.4642. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lake County, TN 8 km (5 mi) SSE of here earthquakes near Lake County
Dyer County, TN 24 km (15 mi) NNW of here earthquakes near Dyer County
Pemiscot County, MO 29 km (18 mi) ENE of here earthquakes near Pemiscot County
Obion County, TN 30 km (19 mi) WSW of here earthquakes near Obion County
Fulton County, KY 41 km (25 mi) SW of here earthquakes near Fulton County
New Madrid County, MO 41 km (25 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

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

  1. 1.8 4 km NW of Marston, MO
  2. 1.5 2 km W of Ridgely, Tennessee
  3. 1.7 southeastern Missouri
  4. 1.6 6 km SW of Caruthersville, Missouri
  5. 1.6 southeastern Missouri
  6. 1.6 1 km NE of Marston, Missouri
  7. 1.6 4 km NW of Marston, Missouri
  8. 2.3 4 km WSW of Howardville, Missouri
  9. 2.7 4 km WSW of Howardville, Missouri
  10. 1.8 4 km NW of Marston, Missouri
  11. 2.7 4 km WSW of Howardville, Missouri
  12. 2.6 4 km WSW of Howardville, Missouri
  13. 1.8 0 km NNW of Cooter, Missouri
  14. 3.3 4 km WSW of Howardville, Missouri
  15. 1.7 1 km NW 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.