QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

5 km NNW of Marked Tree, Arkansas

· 5.1 km deep · released about 9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Poinsett County 22 kmCraighead County 33 kmMississippi County 40 kmCrittenden County 44 kmCross County 44 kmGreene County 61 kmTipton County 63 kmShelby County 66 kmSt. Francis County 68 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 1.6 (md)
Depth
5.1 km below the surface
Felt
no reports yet
Nearest
Poinsett County, 22 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1996 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 9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 9 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 35.5807, -90.4337. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Poinsett County, AR 22 km (14 mi) E of here earthquakes near Poinsett County
Craighead County, AR 33 km (20 mi) SSE of here earthquakes near Craighead County
Mississippi County, AR 40 km (25 mi) WSW of here earthquakes near Mississippi County
Crittenden County, AR 44 km (27 mi) NNW of here earthquakes near Crittenden County
Cross County, AR 44 km (28 mi) NE of here earthquakes near Cross County
Greene County, AR 61 km (38 mi) SSE of here earthquakes near Greene County

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

Aftershocks so far

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

  1. 2.8 5 km W of Dell, Arkansas
  2. 1.6 5 km NE of Etowah, Arkansas
  3. 1.6 3 km SSE of Caraway, Arkansas
  4. 1.7 6 km NE of Etowah, Arkansas
  5. 1.6 6 km NE of Etowah, Arkansas
  6. 3.8 6 km NE of Etowah, Arkansas
  7. 2.1 Arkansas
  8. 1.9 1 km S of Cherry Valley, Arkansas
  9. 1.5 5 km NNW of Victoria, Arkansas
  10. 1.7 6 km NW of Lepanto, Arkansas
  11. 1.8 7 km SSE of Manila, Arkansas
  12. 1.6 5 km NNE of Etowah, Arkansas
  13. 1.8 1 km WNW of Etowah, Arkansas
  14. 1.9 7 km ENE of Etowah, Arkansas
  15. 1.6 4 km SSE of Caraway, 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.