QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

6 km ESE of Center Ridge, Arkansas

· 0.0 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Conway County 19 kmVan Buren County 26 kmFaulkner County 27 kmPope County 49 kmCleburne County 52 kmPerry County 59 kmSearcy County 63 kmStone County 65 kmPulaski County 66 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
0.0 km below the surface
Felt
no reports yet
Nearest
Conway County, 19 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1151 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 35.3477, -92.5032. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Conway County, AR 19 km (12 mi) ENE of here earthquakes near Conway County
Van Buren County, AR 26 km (16 mi) S of here earthquakes near Van Buren County
Faulkner County, AR 27 km (17 mi) NW of here earthquakes near Faulkner County
Pope County, AR 49 km (30 mi) ESE of here earthquakes near Pope County
Cleburne County, AR 52 km (33 mi) WSW of here earthquakes near Cleburne County
Perry County, AR 59 km (37 mi) NE of here earthquakes near Perry County

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

Aftershocks so far

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

  1. 2.0 17 km NNE of Hector, Arkansas
  2. 2.0 4 km SSE of Hector, Arkansas
  3. 2.3 3 km NW of Mount Vernon, Arkansas
  4. 1.7 8 km SW of Heber Springs, Arkansas
  5. 2.3 3 km NE of Greenbrier, Arkansas
  6. 2.0 3 km SSE of Guy, Arkansas
  7. 2.4 11 km W of Clinton, Arkansas
  8. 1.8 2 km WNW of Enola, Arkansas
  9. 2.2 10 km WSW of Center Ridge, Arkansas
  10. 1.9 5 km W of Damascus, Arkansas
  11. 2.1 5 km NNE of Greenbrier, Arkansas
  12. 2.0 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.