QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

3 km SW of Blytheville, Arkansas

· 13 km deep · released about 1,200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mississippi County 18 kmDunklin County 29 kmLauderdale County 33 kmPemiscot County 37 kmTipton County 49 kmDyer County 52 kmGreene County 60 kmCraighead County 62 kmLake 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 3.1 (md)
Depth
13 km below the surface
Felt
30 reports · strongest reported intensity III
Nearest
Mississippi County, 18 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 344 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 30 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 290,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 13,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,100× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.2× more

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 35.9053, -89.9512. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mississippi County, AR 18 km (11 mi) NNE of here earthquakes near Mississippi County
Dunklin County, MO 29 km (18 mi) SSE of here earthquakes near Dunklin County
Lauderdale County, TN 33 km (21 mi) WNW of here earthquakes near Lauderdale County
Pemiscot County, MO 37 km (23 mi) SSW of here earthquakes near Pemiscot County
Tipton County, TN 49 km (30 mi) NNW of here earthquakes near Tipton County
Dyer County, TN 52 km (33 mi) WSW of here earthquakes near Dyer County

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

Aftershocks so far

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

  1. 1.9 3 km NW of Dell, Arkansas
  2. 2.4 2 km ESE of Steele, Missouri
  3. 1.9 5 km W of Dell, Arkansas
  4. 1.7 2 km NNE of Cooter, Missouri
  5. 2.1 3 km SSW of Caruthersville, Missouri
  6. 2.0 3 km SSW of Caruthersville, Missouri
  7. 2.4 4 km SSW of Caruthersville, Missouri
  8. 2.1 5 km ENE of Steele, Missouri
  9. 1.8 1 km NNW of Cooter, Missouri
  10. 2.6 1 km NNW of Cooter, Missouri
  11. 1.6 4 km E of Steele, Missouri
  12. 2.2 1 km NNW of Cooter, Missouri
  13. 1.9 7 km ENE of Steele, Missouri
  14. 2.0 4 km NE of Dell, Arkansas
  15. 1.7 2 km N of Blytheville, 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.