QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

1 km WNW of Cooter, Missouri

· 10 km deep · released about 49 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pemiscot County 18 kmDunklin County 24 kmLauderdale County 37 kmMississippi County 38 kmDyer County 38 kmLake County 44 kmTipton County 62 kmNew Madrid County 62 kmClay County 64 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
10 km below the surface
Felt
6 reports · strongest reported intensity III
Nearest
Pemiscot County, 18 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 78 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 49 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 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 49 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 36.0510, -89.8265. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pemiscot County, MO 18 km (11 mi) SSW of here earthquakes near Pemiscot County
Dunklin County, MO 24 km (15 mi) ESE of here earthquakes near Dunklin County
Lauderdale County, TN 37 km (23 mi) NNW of here earthquakes near Lauderdale County
Mississippi County, AR 38 km (23 mi) NNE of here earthquakes near Mississippi County
Dyer County, TN 38 km (24 mi) W of here earthquakes near Dyer County
Lake County, TN 44 km (27 mi) SW of here earthquakes near Lake County

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

Aftershocks so far

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

  1. 1.3 9 km SSE of Marston, Missouri
  2. 2.1 7 km ENE of Steele, Missouri
  3. 1.8 8 km E of Ridgely, Tennessee
  4. 1.7 2 km NNE of Ridgely, Tennessee
  5. 1.7 7 km NNW of Ridgely, Tennessee
  6. 1.9 5 km NW of Ridgely, Tennessee
  7. 1.6 7 km E of Hayward, Missouri
  8. 2.0 7 km S of Ridgely, Tennessee
  9. 1.8 6 km NW of Ridgely, Tennessee
  10. 1.7 7 km NW of Ridgely, Tennessee
  11. 1.7 5 km W of Tiptonville, Tennessee
  12. 2.0 5 km NE of Caruthersville, Missouri
  13. 2.1 3 km SSW of Caruthersville, Missouri
  14. 1.7 1 km NNE of Ridgely, Tennessee
  15. 2.6 6 km ENE of Steele, Missouri

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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.0 on 2026-04-23 — it released about 620 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.