QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Walnut Ridge, AR

No earthquake was likely felt in Walnut Ridge in the 24 hours to 3:14 am CST (09:14 UTC). The last one was M 4.0, 102 km (63 mi) E, at 12:59 pm CDT on 23 April 2026, estimated intensity III (weak) in town; 913 felt reports to USGS. Every earthquake near Walnut Ridge

This page: a magnitude 2.1 earthquake was recorded 21 km (13 mi) west of Walnut Ridge, AR, at 1:14 pm CST on 19 January 2022 (19:14 UTC), less than 1 km deep.

USGS: 6 km WNW of Powhatan, Arkansas

55 km (34 mi) NW of Jonesboro, AR

1:14 pm CST, Jan 19, 2022 · · 0.1 km deep · released about 41 lb of TNT

10 km30 km60 km120 km N Lawrence County 10 kmSharp County 27 kmRandolph County 30 kmIndependence County 53 kmGreene County 56 kmJackson County 56 kmCraighead County 59 kmFulton County 65 kmIzard County 65 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
1:14 pm CST on 19 January 2022 ()
Where
21 km (13 mi) west of Walnut Ridge, AR · earthquakes near Walnut Ridge
Magnitude
M 2.1 (md)
Depth
0.1 km below the surface
Felt
no reports yet
Nearest
Lawrence County, 10 km SE
Nearest mapped fault
Western Lowlands liquefaction features, 24 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1756 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 28 km (17 mi) from the epicentre. In Walnut Ridge, 21 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.

Likely felt in: Pocahontas 26 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 41 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 370,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 260,000× the energy of this one
  3. Around the size people start to feel M 3.0 23× the energy of this one
  4. This earthquake M 2.1 about 41 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 36.1012, -91.1868. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lawrence County, AR 10 km (6 mi) SE earthquakes near Lawrence County
Sharp County, AR 27 km (17 mi) WNW earthquakes near Sharp County
Randolph County, AR 30 km (19 mi) NNE earthquakes near Randolph County
Independence County, AR 53 km (33 mi) SW earthquakes near Independence County
Greene County, AR 56 km (35 mi) E earthquakes near Greene County
Jackson County, AR 56 km (35 mi) S earthquakes near Jackson County

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

Aftershocks so far

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

  1. 2.3 11 km NW of Strawberry, Arkansas
  2. 1.6 1 km W of Lynn, Arkansas
  3. 2.0 9 km NE of Grubbs, Arkansas
  4. 2.3 5 km SE of Imboden, Arkansas
  5. 2.0 6 km N of Black Rock, Arkansas
  6. 2.1 8 km NE of Smithville, Arkansas
  7. 2.0 4 km NNW of Minturn, Arkansas
  8. 1.9 12 km WNW of Smithville, Arkansas
  9. 1.8 2 km SW of Ravenden, Arkansas
  10. 2.0 5 km N of Black Rock, Arkansas
  11. 2.2 5 km SSW of Strawberry, Arkansas
  12. 1.7 3 km N of Black Rock, Arkansas
  13. 2.2 3 km ESE of Strawberry, Arkansas
  14. 1.7 4 km SSW of Strawberry, Arkansas
  15. 1.7 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.