QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Conway, AR

No earthquake was likely felt in Conway in the 24 hours to 10:09 am CST (16:09 UTC). The last one was M 2.1, 28 km (18 mi) ENE, at 5:55 am CDT on 28 September 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Conway

This page: a magnitude 2.4 earthquake was recorded 45 km (28 mi) north-northwest of Conway, AR, at 5:25 am CDT on 10 May 2018 (10:25 UTC), 9.3 km deep. 1 person has reported feeling it to USGS.

USGS: 12 km NW of Center Ridge, Arkansas

85 km (53 mi) NNW of Little Rock, AR · 45 km (28 mi) NNW of Conway, AR

5:25 am CDT, May 10, 2018 · · 9.3 km deep · released about 110 lb of TNT

10 km30 km60 km120 km N Van Buren County 20 kmConway County 20 kmPope County 33 kmFaulkner County 45 kmSearcy County 50 kmPerry County 61 kmCleburne County 61 kmStone County 65 kmNewton 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
5:25 am CDT on 10 May 2018 ()
Where
45 km (28 mi) north-northwest of Conway, AR · earthquakes near Conway
Magnitude
M 2.4 (md)
Depth
9.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Van Buren County, 20 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3106 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 40 km (25 mi) from the epicentre. In Conway, 45 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: Clinton.

How big was it?

This earthquake released about 110 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 95,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.5× the energy of this one
  4. This earthquake M 2.4 about 110 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 35.4485, -92.6615. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Van Buren County, AR 20 km (12 mi) NE earthquakes near Van Buren County
Conway County, AR 20 km (13 mi) S earthquakes near Conway County
Pope County, AR 33 km (21 mi) W earthquakes near Pope County
Faulkner County, AR 45 km (28 mi) SE earthquakes near Faulkner County
Searcy County, AR 50 km (31 mi) N earthquakes near Searcy County
Perry County, AR 61 km (38 mi) SSW earthquakes near Perry County

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

Aftershocks so far

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

  1. 2.0 17 km NNE of Hector, Arkansas
  2. 2.0 4 km SSE of Hector, Arkansas
  3. 2.3 3 km NE of Greenbrier, Arkansas
  4. 2.0 3 km SSE of Guy, Arkansas
  5. 2.0 1 km SW of Pottsville, Arkansas
  6. 2.4 11 km W of Clinton, Arkansas
  7. 1.8 2 km WNW of Enola, Arkansas
  8. 2.2 10 km WSW of Center Ridge, Arkansas
  9. 1.9 5 km W of Damascus, Arkansas
  10. 2.1 5 km NNE of Greenbrier, Arkansas
  11. 2.0 Arkansas
  12. 2.3 6 km ESE of Center Ridge, Arkansas
  13. 1.9 16 km NE of Hector, Arkansas
  14. 2.1 6 km WSW of Leslie, Arkansas
  15. 1.6 3 km WNW of Greenbrier, 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.