QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

Earthquake near Pocahontas, AR

No earthquake was likely felt in Pocahontas in the 24 hours to 8:09 pm CST (02:09 UTC). The last one was M 4.0, 105 km (65 mi) ESE, at 12:59 pm CDT on 23 April 2026, estimated intensity III (weak) in town; 913 felt reports to USGS. Every earthquake near Pocahontas

This page: a magnitude 1.8 earthquake was recorded 27 km (17 mi) west of Pocahontas, AR, at 5:38 am CST on 29 December 2023 (11:38 UTC), 4.4 km deep.

USGS: 2 km SW of Ravenden, Arkansas

5:38 am CST, Dec 29, 2023 · · 4.4 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Sharp County 19 kmLawrence County 24 kmRandolph County 25 kmFulton County 53 kmOregon County 54 kmIndependence County 59 kmIzard County 60 kmRipley County 60 kmGreene County 64 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
5:38 am CST on 29 December 2023 ()
Where
27 km (17 mi) west of Pocahontas, AR · earthquakes near Pocahontas
Magnitude
M 1.8 (md)
Depth
4.4 km below the surface
Felt
no reports yet
Nearest
Sharp County, 19 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1048 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 16 km (10 mi) from the epicentre. In Pocahontas, 27 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Highland, Cherokee Village.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 730,000× the energy of this one
  3. Around the size people start to feel M 3.0 65× the energy of this one
  4. This earthquake M 1.8 about 15 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 36.2160, -91.2667. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sharp County, AR 19 km (12 mi) WSW earthquakes near Sharp County
Lawrence County, AR 24 km (15 mi) SE earthquakes near Lawrence County
Randolph County, AR 25 km (16 mi) ENE earthquakes near Randolph County
Fulton County, AR 53 km (33 mi) WNW earthquakes near Fulton County
Oregon County, MO 54 km (33 mi) NNW earthquakes near Oregon County
Independence County, AR 59 km (37 mi) SSW earthquakes near Independence County

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

Aftershocks so far

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

  1. 2.2 3 km N of Strawberry, Arkansas
  2. 1.6 3 km NE of Strawberry, Arkansas
  3. 1.8 4 km NNW of Strawberry, Arkansas
  4. 1.6 3 km N of Strawberry, Arkansas
  5. 1.9 3 km N of Strawberry, Arkansas
  6. 2.1 5 km SSW of Strawberry, Arkansas
  7. 1.8 9 km W of Maynard, 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. 2.2 4 km SSE of Maynard, Arkansas
  13. 2.1 3 km WNW of Lynn, Arkansas
  14. 2.0 4 km NW of Lynn, Arkansas
  15. 1.9 4 km NW 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.