QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

16 km NE of Hector, Arkansas

· 1.7 km deep · released about 22 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pope County 20 kmVan Buren County 31 kmConway County 38 kmSearcy County 39 kmNewton County 49 kmJohnson County 55 kmFaulkner County 67 kmPerry County 70 kmStone 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 1.9 (md)
Depth
1.7 km below the surface
Felt
no reports yet
Nearest
Pope County, 20 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1306 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 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 35.5752, -92.8560. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pope County, AR 20 km (13 mi) NE of here earthquakes near Pope County
Van Buren County, AR 31 km (19 mi) W of here earthquakes near Van Buren County
Conway County, AR 38 km (23 mi) NNW of here earthquakes near Conway County
Searcy County, AR 39 km (24 mi) SSW of here earthquakes near Searcy County
Newton County, AR 49 km (31 mi) SE of here earthquakes near Newton County
Johnson County, AR 55 km (34 mi) E of here earthquakes near Johnson 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. 2.2 14 km NE of Pelsor, Arkansas
  5. 2.3 14 km NE of Pelsor, Arkansas
  6. 2.4 14 km NE of Pelsor, Arkansas
  7. 2.4 11 km W of Clinton, Arkansas
  8. 2.2 10 km WSW of Center Ridge, Arkansas
  9. 1.9 5 km W of Damascus, Arkansas
  10. 2.0 Arkansas
  11. 2.3 6 km ESE of Center Ridge, 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.