QuakeIndex

Earthquake · reviewed by a seismologist

M 3.8mw

6 km NE of Etowah, Arkansas

· 11 km deep · released about 7.6 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mississippi County 13 kmCraighead County 40 kmDunklin County 44 kmPoinsett County 50 kmTipton County 50 kmLauderdale County 51 kmGreene County 51 kmPemiscot County 61 kmCrittenden County 65 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 3.8 (mw)
Depth
11 km below the surface
Felt
487 reports · strongest reported intensity V
Measured shaking
intensity IV (ShakeMap)
Nearest
Mississippi County, 13 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 605 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 487 people have reported feeling it to USGS.

How big was it?

This earthquake released about 7.6 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.8 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 22,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 710× the energy of this one
  4. This earthquake M 3.8 about 7.6 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 16× 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 35.7717, -90.1908. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mississippi County, AR 13 km (8 mi) W of here earthquakes near Mississippi County
Craighead County, AR 40 km (25 mi) E of here earthquakes near Craighead County
Dunklin County, MO 44 km (27 mi) SSW of here earthquakes near Dunklin County
Poinsett County, AR 50 km (31 mi) ENE of here earthquakes near Poinsett County
Tipton County, TN 50 km (31 mi) NW of here earthquakes near Tipton County
Lauderdale County, TN 51 km (32 mi) W of here earthquakes near Lauderdale County

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

Aftershocks so far

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

  1. 2.1 7 km WSW of Etowah, Arkansas
  2. 2.2 5 km ENE of Dell, Arkansas
  3. 3.1 3 km SW of Blytheville, Arkansas
  4. 2.6 3 km SW of Blytheville, Arkansas
  5. 2.0 4 km S of Holland, Missouri
  6. 1.8 5 km NNE of Blytheville, Arkansas
  7. 2.1 1 km W of Cooter, Missouri
  8. 1.8 5 km S of Caraway, Arkansas
  9. 2.0 2 km SE of Dell, Arkansas
  10. 1.8 9 km S of Trumann, Arkansas
  11. 2.1 6 km SW of Etowah, Arkansas
  12. 1.9 3 km NNE of Blytheville, Arkansas
  13. 2.7 1 km WNW of Cooter, Missouri
  14. 1.9 6 km N of Etowah, Arkansas
  15. 2.3 2 km WSW of Lake City, 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.