QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

7 km N of Etowah, Arkansas

· 25 km deep · released about 17 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mississippi County 17 kmCraighead County 35 kmDunklin County 43 kmGreene County 47 kmPoinsett County 47 kmLauderdale County 55 kmTipton County 55 kmPemiscot County 62 kmClay 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 1.8 (md)
Depth
25 km below the surface
Felt
no reports yet
Nearest
Mississippi County, 17 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1556 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 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 870,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 620,000× the energy of this one
  3. Around the size people start to feel M 3.0 55× the energy of this one
  4. This earthquake M 1.8 about 17 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 35.7963, -90.2400. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mississippi County, AR 17 km (11 mi) W of here earthquakes near Mississippi County
Craighead County, AR 35 km (22 mi) E of here earthquakes near Craighead County
Dunklin County, MO 43 km (27 mi) SSW of here earthquakes near Dunklin County
Greene County, AR 47 km (29 mi) SE of here earthquakes near Greene County
Poinsett County, AR 47 km (29 mi) ENE of here earthquakes near Poinsett County
Lauderdale County, TN 55 km (34 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

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

  1. 1.6 1 km W of Blytheville, Arkansas
  2. 2.1 Arkansas
  3. 1.7 1 km NNW of Cooter, Missouri
  4. 1.5 5 km NNW of Victoria, Arkansas
  5. 1.7 6 km NW of Lepanto, Arkansas
  6. 2.2 7 km SSW of Holland, Missouri
  7. 1.8 southeastern Missouri
  8. 1.8 7 km SSE of Manila, Arkansas
  9. 1.8 3 km SW of Blytheville, Arkansas
  10. 2.4 Tennessee
  11. 2.3 1 km NNW of Cooter, Missouri
  12. 1.6 5 km NNE of Etowah, Arkansas
  13. 1.7 1 km NNW of Cooter, Missouri
  14. 1.8 1 km WNW of Etowah, Arkansas
  15. 1.9 5 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.