Earthquake near Clinton, AR

USGS: 12 km SE of Clinton, Arkansas

87 km (54 mi) N of Little Rock, AR · 49 km (30 mi) N of Conway, AR

2:40 am CDT, May 2, 2018 · 2018-05-02 07:40 UTC · 3.2 km deep · released about 60 lb of TNT

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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: 2:40 am CDT on 2 May 2018 (2018-05-02 07:40 UTC)
Where: 13 km (8 mi) SE of Clinton, AR · earthquakes near Clinton
Magnitude: M 2.2 (md)
Depth: 3.2 km below the surface
Felt: no reports yet
Nearest: Van Buren County, 16 km WNW
Status: Reviewed by a seismologist

USGS · last changed by USGS 3076 days ago · we first saw it 3076 days ago

A magnitude 2.2 earthquake was recorded 13 km (8 mi) SE of Clinton, AR, at 2:40 am CDT on 2 May 2018 (07:40 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Fairfield Bay.

How big was it?

This earthquake released about 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
Magna, Utah 2020 M 5.7 180,000× the energy of this one
Around the size people start to feel M 3.0 16× the energy of this one
This earthquake M 2.2 about 60 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

Map loads when it scrolls into view

Epicentre 35.5057, -92.3708. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction from the epicentre
Van Buren County, AR	16 km (10 mi)	WNW	earthquakes near Van Buren County
Cleburne County, AR	34 km (21 mi)	ENE	earthquakes near Cleburne County
Conway County, AR	39 km (24 mi)	SW	earthquakes near Conway County
Faulkner County, AR	40 km (25 mi)	S	earthquakes near Faulkner County
Stone County, AR	44 km (28 mi)	NNE	earthquakes near Stone County
Searcy County, AR	52 km (33 mi)	NW	earthquakes near Searcy County

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

Aftershocks so far

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

2.1 3 km E of Enola, Arkansas 10:55 UTC
2.0 17 km NNE of Hector, Arkansas 22:58 UTC
1.8 3 km NNE of Tumbling Shoals, Arkansas 06:51 UTC
2.3 3 km NW of Mount Vernon, Arkansas 17:42 UTC
1.7 8 km SW of Heber Springs, Arkansas 10:49 UTC
2.3 3 km NE of Greenbrier, Arkansas 17:58 UTC
2.0 3 km SSE of Guy, Arkansas 07:51 UTC
2.4 11 km W of Clinton, Arkansas 20:08 UTC
1.8 2 km WNW of Enola, Arkansas 05:41 UTC
2.2 10 km WSW of Center Ridge, Arkansas 09:33 UTC
1.9 5 km W of Damascus, Arkansas 11:09 UTC
2.1 5 km NNE of Greenbrier, Arkansas 06:45 UTC
2.0 Arkansas 07:31 UTC
2.3 6 km ESE of Center Ridge, Arkansas 20:49 UTC
1.9 16 km NE of Hector, Arkansas 07:35 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 03:23 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

The official USGS event page — the source of record for every value above
Did you feel it? Report it to USGS — reports go to USGS, not to us
ShakeMap for this event, when USGS has produced one

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.