QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near El Dorado, AR

No earthquake was likely felt in El Dorado in the 24 hours to 11:21 pm CST (05:21 UTC). The last one was M 3.4, 147 km (92 mi) SSW, at 3:00 pm CDT on 21 August 2026, estimated intensity II (weak) in town; 78 felt reports to USGS. Every earthquake near El Dorado

This page: a magnitude 2.1 earthquake was recorded 7 km (5 mi) east-southeast of El Dorado, AR, at 1:51 am CDT on 19 April 2019 (06:51 UTC), 7.0 km deep.

USGS: 7 km ESE of El Dorado, Arkansas

1:51 am CDT, Apr 19, 2019 · · 7.0 km deep · released about 47 lb of TNT

10 km30 km60 km120 km N Union County 1 kmCalhoun County 43 kmUnion Parish 44 kmBradley County 51 kmOuachita County 53 kmClaiborne Parish 54 kmColumbia County 59 kmLincoln Parish 64 kmAshley County 77 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
1:51 am CDT on 19 April 2019 ()
Where
7 km (5 mi) east-southeast of El Dorado, AR · earthquakes near El Dorado
Magnitude
M 2.1 (md)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Union County, 1 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2764 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 29 km (18 mi) from the epicentre. In El Dorado, 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: Smackover.

How big was it?

This earthquake released about 47 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 5.8 320,000× 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 20× the energy of this one
  4. This earthquake M 2.1 about 47 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 33.1787, -92.5957. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Union County, AR 1 km (1 mi) SSW earthquakes near Union County
Calhoun County, AR 43 km (27 mi) N earthquakes near Calhoun County
Union Parish, LA 44 km (27 mi) SSE earthquakes near Union Parish
Bradley County, AR 51 km (32 mi) NE earthquakes near Bradley County
Ouachita County, AR 53 km (33 mi) NNW earthquakes near Ouachita County
Claiborne Parish, LA 54 km (33 mi) SW earthquakes near Claiborne Parish

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

Aftershocks so far

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

  1. 2.8 13 km SSE of El Dorado, Arkansas
  2. 2.8 12 km ENE of Junction City, 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.