QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

Earthquake near Jonesboro, AR

No earthquake was likely felt in Jonesboro in the 24 hours to 2:25 am CST (08:25 UTC). The last one was M 4.0, 83 km (51 mi) ENE, at 12:59 pm CDT on 23 April 2026, estimated intensity III (weak) in town; 913 felt reports to USGS. Every earthquake near Jonesboro

This page: a magnitude 2.9 earthquake was recorded 33 km (21 mi) north-northwest of Jonesboro, AR, at 10:22 pm CDT on 24 August 2020 (03:22 UTC), 10 km deep. 31 people have reported feeling it to USGS.

USGS: 7 km SSW of O'Kean, Arkansas

37 km (23 mi) NNW of Jonesboro, AR · 138 km (86 mi) NW of Memphis, TN

10:22 pm CDT, Aug 24, 2020 · · 10 km deep · released about 680 lb of TNT

10 km30 km60 km120 km N Lawrence County 23 kmGreene County 26 kmRandolph County 29 kmCraighead County 38 kmClay County 48 kmSharp County 56 kmRipley County 59 kmPoinsett County 63 kmJackson County 67 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
10:22 pm CDT on 24 August 2020 ()
Where
33 km (21 mi) north-northwest of Jonesboro, AR · earthquakes near Jonesboro
Magnitude
M 2.9 (md)
Depth
10 km below the surface
Felt
31 reports · strongest reported intensity VI
Nearest
Lawrence County, 23 km WSW
Nearest mapped fault
Western Lowlands liquefaction features, under 1 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 2202 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 66 km (41 mi) from the epicentre. In Jonesboro, 33 km away, the estimate is intensity III (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 19 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 36.1158, -90.8570. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lawrence County, AR 23 km (15 mi) WSW earthquakes near Lawrence County
Greene County, AR 26 km (16 mi) E earthquakes near Greene County
Randolph County, AR 29 km (18 mi) NNW earthquakes near Randolph County
Craighead County, AR 38 km (24 mi) SSE earthquakes near Craighead County
Clay County, AR 48 km (30 mi) NE earthquakes near Clay County
Sharp County, AR 56 km (34 mi) W earthquakes near Sharp County

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

Aftershocks so far

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

  1. 2.1 2 km SE of Ravenden, Arkansas
  2. 1.9 3 km ESE of Ravenden, Arkansas
  3. 1.8 Missouri-Arkansas border region
  4. 1.9 8 km SSE of Williford, Arkansas
  5. 2.1 7 km SW of Ravenden, Arkansas
  6. 1.7 6 km SW of Ravenden, Arkansas
  7. 1.9 6 km SSE of Williford, Arkansas
  8. 2.3 8 km SSE of Williford, Arkansas
  9. 2.4 7 km SSE of Williford, Arkansas
  10. 2.2 4 km WNW of Powhatan, Arkansas
  11. 2.1 5 km WNW of Powhatan, Arkansas
  12. 2.1 6 km WNW of Powhatan, Arkansas
  13. 1.6 4 km NE of Black Rock, Arkansas
  14. 1.8 5 km WNW of Powhatan, Arkansas
  15. 1.5 5 km WNW of Powhatan, 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.