QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

2 km ENE of Dell, Arkansas

· 11 km deep · released about 40 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mississippi County 11 kmDunklin County 32 kmLauderdale County 36 kmPemiscot County 43 kmTipton County 47 kmCraighead County 56 kmGreene County 57 kmDyer County 59 kmClay County 67 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
11 km below the surface
Felt
no reports yet
Nearest
Mississippi County, 11 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2918 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 40 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 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 35.8647, -90.0117. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mississippi County, AR 11 km (7 mi) NNE of here earthquakes near Mississippi County
Dunklin County, MO 32 km (20 mi) S of here earthquakes near Dunklin County
Lauderdale County, TN 36 km (23 mi) WNW of here earthquakes near Lauderdale County
Pemiscot County, MO 43 km (27 mi) SSW of here earthquakes near Pemiscot County
Tipton County, TN 47 km (29 mi) NNW of here earthquakes near Tipton County
Craighead County, AR 56 km (35 mi) E of here earthquakes near Craighead County

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

Aftershocks so far

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

  1. 2.4 Arkansas
  2. 1.8 6 km SW of Gosnell, Arkansas
  3. 1.9 6 km SSW of Holland, Missouri
  4. 2.0 6 km ENE of Steele, Missouri
  5. 2.9 2 km SE of Steele, Missouri
  6. 1.7 2 km ESE of Dell, Arkansas
  7. 1.5 4 km W of Etowah, Arkansas
  8. 2.7 6 km ENE of Steele, Missouri
  9. 2.1 6 km ENE of Steele, Missouri
  10. 2.1 0 km NNW of Cooter, Missouri
  11. 2.4 3 km SW of Dell, Arkansas
  12. 2.2 7 km ENE of Steele, Missouri
  13. 2.2 4 km E of Steele, Missouri
  14. 2.2 8 km NNW of Lepanto, Arkansas
  15. 1.9 9 km SW of Caruthersville, 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.

On USGS

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