QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

1 km SSW of Caruthersville, Missouri

· 6.3 km deep · released about 38 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pemiscot County 12 kmLake County 23 kmDyer County 27 kmDunklin County 36 kmLauderdale County 46 kmNew Madrid County 46 kmObion County 50 kmMississippi County 58 kmFulton County 59 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 2.1 (md)
Depth
6.3 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Pemiscot County, 12 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 269 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 38 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 390,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 280,000× the energy of this one
  3. Around the size people start to feel M 3.0 25× the energy of this one
  4. This earthquake M 2.1 about 38 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 36.1782, -89.6595. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pemiscot County, MO 12 km (7 mi) ESE of here earthquakes near Pemiscot County
Lake County, TN 23 km (14 mi) SW of here earthquakes near Lake County
Dyer County, TN 27 km (17 mi) WNW of here earthquakes near Dyer County
Dunklin County, MO 36 km (23 mi) E of here earthquakes near Dunklin County
Lauderdale County, TN 46 km (29 mi) N of here earthquakes near Lauderdale County
New Madrid County, MO 46 km (29 mi) S 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 2 km NNE of Cooter, Missouri
  2. 1.5 5 km SE of Ridgely, Tennessee
  3. 2.0 5 km SE of Ridgely, Tennessee
  4. 1.6 5 km SE of Ridgely, Tennessee
  5. 2.1 3 km SSW of Caruthersville, Missouri
  6. 1.7 6 km ESE of Ridgely, Tennessee
  7. 2.2 5 km SSW of New Madrid, Missouri
  8. 2.0 3 km SSW of Caruthersville, Missouri
  9. 1.6 9 km N of Dyersburg, Tennessee
  10. 1.7 0 km N of Howardville, Missouri
  11. 2.0 10 km NNW of Dyersburg, Tennessee
  12. 1.5 7 km SSE of Ridgely, Tennessee
  13. 1.8 3 km ENE of Lilbourn, Missouri
  14. 1.7 7 km SE of Marston, Missouri
  15. 2.0 2 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.