QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Perryville, AR

No earthquake was likely felt in Perryville in the 24 hours to 10:48 am CST (16:48 UTC). The last one was M 5.0, 747 km (464 mi) W, at 5:21 am CDT on 23 July 2026, estimated intensity II (weak) in town; 499 felt reports to USGS. Every earthquake near Perryville

This page: a magnitude 2.1 earthquake was recorded 7 km (4 mi) south-southwest of Perryville, AR, at 9:33 pm CDT on 3 September 2023 (02:33 UTC), 7.0 km deep.

USGS: 6 km SSW of Perryville, Arkansas

50 km (31 mi) WNW of Little Rock, AR · 36 km (22 mi) WSW of Conway, AR

9:33 pm CDT, Sep 3, 2023 · · 7.0 km deep · released about 46 lb of TNT

10 km30 km60 km120 km N Perry County 8 kmSaline County 37 kmConway County 37 kmFaulkner County 50 kmGarland County 50 kmPulaski County 52 kmYell County 53 kmPope County 59 kmHot Spring County 72 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
9:33 pm CDT on 3 September 2023 ()
Where
7 km (4 mi) south-southwest of Perryville, AR · earthquakes near Perryville
Magnitude
M 2.1 (md)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Perry County, 8 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1164 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 Perryville, 7 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: Morrilton.

How big was it?

This earthquake released about 46 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 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 34.9518, -92.8343. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Perry County, AR 8 km (5 mi) W earthquakes near Perry County
Saline County, AR 37 km (23 mi) SSE earthquakes near Saline County
Conway County, AR 37 km (23 mi) NNE earthquakes near Conway County
Faulkner County, AR 50 km (31 mi) ENE earthquakes near Faulkner County
Garland County, AR 50 km (31 mi) SW earthquakes near Garland County
Pulaski County, AR 52 km (32 mi) ESE earthquakes near Pulaski County

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

Aftershocks so far

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

  1. 1.7 4 km SW of Avilla, Arkansas
  2. 2.3 4 km WSW of Avilla, Arkansas
  3. 2.0 1 km SW of Pottsville, Arkansas
  4. 2.2 10 km WSW of Center Ridge, Arkansas
  5. 1.8 6 km SSW of Perryville, Arkansas
  6. 2.0 8 km SW of Perryville, Arkansas
  7. 2.3 Arkansas
  8. 2.0 8 km SSW of Perryville, 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.