QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

3 km NW of Mount Vernon, Arkansas

· 5.5 km deep · released about 77 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Faulkner County 21 kmWhite County 36 kmCleburne County 40 kmConway County 49 kmVan Buren County 49 kmPulaski County 56 kmLonoke County 60 kmStone County 67 kmPrairie County 72 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
5.5 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Faulkner County, 21 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 243 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 77 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 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 77 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 35.2545, -92.1505. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Faulkner County, AR 21 km (13 mi) NE of here earthquakes near Faulkner County
White County, AR 36 km (22 mi) W of here earthquakes near White County
Cleburne County, AR 40 km (25 mi) SSW of here earthquakes near Cleburne County
Conway County, AR 49 km (30 mi) E of here earthquakes near Conway County
Van Buren County, AR 49 km (31 mi) SE of here earthquakes near Van Buren County
Pulaski County, AR 56 km (35 mi) NNE of here earthquakes near Pulaski County

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

Aftershocks so far

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

  1. 2.3 13 km SSW of Pleasant Plains, Arkansas
  2. 1.8 3 km NNE of Tumbling Shoals, 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.