QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

6 km N of Blytheville, Arkansas

· 8.1 km deep · released about 41 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Dunklin County 24 kmMississippi County 27 kmPemiscot County 28 kmLauderdale County 35 kmDyer County 47 kmLake County 55 kmTipton County 56 kmGreene County 61 kmClay County 63 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
8.1 km below the surface
Felt
no reports yet
Nearest
Dunklin County, 24 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1532 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 41 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 5.8 370,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 260,000× the energy of this one
  3. Around the size people start to feel M 3.0 23× the energy of this one
  4. This earthquake M 2.1 about 41 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 35.9808, -89.9085. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Dunklin County, MO 24 km (15 mi) SE of here earthquakes near Dunklin County
Mississippi County, AR 27 km (17 mi) NNE of here earthquakes near Mississippi County
Pemiscot County, MO 28 km (17 mi) SSW of here earthquakes near Pemiscot County
Lauderdale County, TN 35 km (22 mi) NW of here earthquakes near Lauderdale County
Dyer County, TN 47 km (29 mi) W of here earthquakes near Dyer County
Lake County, TN 55 km (34 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

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

  1. 1.8 9 km SW of Caruthersville, Missouri
  2. 2.5 4 km NNE of Blytheville, Arkansas
  3. 1.7 3 km W of Ridgely, Tennessee
  4. 2.0 5 km ENE of Steele, Missouri
  5. 1.5 7 km ENE of Steele, Missouri
  6. 2.1 6 km S of Holland, Missouri
  7. 2.0 5 km SE of Ridgely, Tennessee
  8. 1.6 0 km SSW of Ridgely, Tennessee
  9. 1.5 3 km WSW of Ridgely, Tennessee
  10. 2.1 4 km SSW of Caruthersville, Missouri
  11. 1.5 4 km NW of Ridgely, Tennessee
  12. 1.8 southeastern Missouri
  13. 1.7 4 km WSW of Ridgely, Tennessee
  14. 2.5 8 km S of Manila, Arkansas
  15. 1.7 6 km NNE of Dell, Arkansas

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.