QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

3 km E of Tull, Arkansas

· 0.2 km deep · released about 79 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 21 kmSaline County 26 kmHot Spring County 39 kmPulaski County 42 kmDallas County 54 kmGarland County 57 kmJefferson County 59 kmPerry County 66 kmLonoke County 69 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
0.2 km below the surface
Felt
no reports yet
Nearest
Grant County, 21 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3746 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 79 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 5.8 190,000× 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 12× the energy of this one
  4. This earthquake M 2.3 about 79 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 34.4427, -92.5435. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, AR 21 km (13 mi) NNW of here earthquakes near Grant County
Saline County, AR 26 km (16 mi) SSE of here earthquakes near Saline County
Hot Spring County, AR 39 km (24 mi) ENE of here earthquakes near Hot Spring County
Pulaski County, AR 42 km (26 mi) SSW of here earthquakes near Pulaski County
Dallas County, AR 54 km (33 mi) N of here earthquakes near Dallas County
Garland County, AR 57 km (36 mi) ESE of here earthquakes near Garland County

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

Aftershocks so far

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

  1. 1.7 4 km SW of Avilla, Arkansas
  2. 2.3 4 km WSW of Avilla, Arkansas
  3. 2.1 6 km S of Prattsville, Arkansas
  4. 2.9 3 km SW of Prattsville, Arkansas
  5. 2.2 2 km WSW of Keo, Arkansas
  6. 2.0 7 km SSW of Jones Mills, Arkansas
  7. 2.6 9 km E of Leola, 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.