QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

10 km NNE of Newark, Arkansas

· 8.3 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Independence County 16 kmJackson County 26 kmLawrence County 38 kmSharp County 44 kmIzard County 59 kmCleburne County 60 kmWoodruff County 67 kmWhite County 68 kmPoinsett County 68 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 2.3 (md)
Depth
8.3 km below the surface
Felt
no reports yet
Nearest
Independence County, 16 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2229 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 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 35.7838, -91.3865. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Independence County, AR 16 km (10 mi) ENE of here earthquakes near Independence County
Jackson County, AR 26 km (16 mi) NW of here earthquakes near Jackson County
Lawrence County, AR 38 km (24 mi) SW of here earthquakes near Lawrence County
Sharp County, AR 44 km (27 mi) S of here earthquakes near Sharp County
Izard County, AR 59 km (36 mi) SE of here earthquakes near Izard County
Cleburne County, AR 60 km (37 mi) ENE of here earthquakes near Cleburne County

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

Aftershocks so far

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

  1. 2.3 5 km NNW of Strawberry, Arkansas
  2. 1.8 2 km W of Imboden, Arkansas
  3. 2.2 10 km SW of Pleasant Plains, Arkansas
  4. 1.5 2 km W of Lynn, Arkansas
  5. 2.0 2 km NNW of Black Rock, Arkansas
  6. 1.9 11 km SW of Pleasant Plains, Arkansas
  7. 1.6 1 km WNW of Lynn, Arkansas
  8. 1.5 1 km W of Lynn, Arkansas
  9. 1.7 1 km WNW of Lynn, Arkansas
  10. 2.2 9 km NNW of Moorefield, Arkansas
  11. 2.0 3 km SW of Lynn, Arkansas
  12. 2.1 2 km SSW of Lynn, Arkansas
  13. 1.9 5 km S of Imboden, Arkansas
  14. 2.0 3 km SSW of Imboden, Arkansas
  15. 3.1 4 km SSW of Imboden, 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.