QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

4 km ENE of Dover, Arkansas

· 2.3 km deep · released about 420 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pope County 6 kmJohnson County 39 kmConway County 39 kmVan Buren County 54 kmPerry County 55 kmNewton County 56 kmYell County 56 kmLogan County 63 kmSearcy County 63 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 2.8 (md)
Depth
2.3 km below the surface
Felt
48 reports · strongest reported intensity IV
Nearest
Pope County, 6 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3655 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 48 people have reported feeling it to USGS.

How big was it?

This earthquake released about 420 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 36,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 26,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.3× the energy of this one
  4. This earthquake M 2.8 about 420 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 35.4215, -93.0777. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pope County, AR 6 km (4 mi) SW of here earthquakes near Pope County
Johnson County, AR 39 km (24 mi) ESE of here earthquakes near Johnson County
Conway County, AR 39 km (24 mi) WNW of here earthquakes near Conway County
Van Buren County, AR 54 km (34 mi) WSW of here earthquakes near Van Buren County
Perry County, AR 55 km (34 mi) NNW of here earthquakes near Perry County
Newton County, AR 56 km (35 mi) SSE of here earthquakes near Newton County

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

Aftershocks so far

11 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. 2.0 1 km SW of Pottsville, Arkansas
  4. 2.4 11 km W of Clinton, Arkansas
  5. 2.2 10 km WSW of Center Ridge, Arkansas
  6. 1.9 16 km NE of Hector, Arkansas
  7. 1.8 9 km WSW of Center Ridge, Arkansas
  8. 2.1 14 km NNE of Hagarville, Arkansas
  9. 2.5 20 km W of Clinton, Arkansas
  10. 2.4 12 km NW of Center Ridge, Arkansas
  11. 2.4 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.