QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

9 km NE of Grubbs, Arkansas

· 7.4 km deep · released about 33 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jackson County 23 kmPoinsett County 34 kmCraighead County 36 kmLawrence County 37 kmIndependence County 50 kmCross County 53 kmGreene County 60 kmWoodruff County 62 kmSharp 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 2.0 (md)
Depth
7.4 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Jackson County, 23 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 758 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 33 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 450,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 320,000× the energy of this one
  3. Around the size people start to feel M 3.0 29× the energy of this one
  4. This earthquake M 2.0 about 33 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 35.7143, -91.0078. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jackson County, AR 23 km (15 mi) NE of here earthquakes near Jackson County
Poinsett County, AR 34 km (21 mi) WNW of here earthquakes near Poinsett County
Craighead County, AR 36 km (23 mi) WSW of here earthquakes near Craighead County
Lawrence County, AR 37 km (23 mi) SSE of here earthquakes near Lawrence County
Independence County, AR 50 km (31 mi) E of here earthquakes near Independence County
Cross County, AR 53 km (33 mi) NNW of here earthquakes near Cross County

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

Aftershocks so far

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

  1. 1.9 2 km N of Strawberry, Arkansas
  2. 2.2 3 km N of Strawberry, Arkansas
  3. 1.6 3 km NE of Strawberry, Arkansas
  4. 1.8 4 km NNW of Strawberry, Arkansas
  5. 1.6 3 km N of Strawberry, Arkansas
  6. 1.9 3 km N of Strawberry, Arkansas
  7. 2.1 5 km SSW of Strawberry, Arkansas
  8. 2.2 2 km W of Lynn, Arkansas
  9. 1.8 2 km SW of Lynn, Arkansas
  10. 1.8 2 km W of Lynn, Arkansas
  11. 1.7 3 km WNW of Lynn, Arkansas
  12. 2.1 3 km WNW of Lynn, Arkansas
  13. 2.0 4 km NW of Lynn, Arkansas
  14. 1.9 4 km NW of Lynn, Arkansas
  15. 1.5 3 km WNW of Lynn, 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.