QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near West Plains, MO

No earthquake was likely felt in West Plains in the 24 hours to 4:26 am CST (10:26 UTC). The last one was M 2.2, 33 km (21 mi) S, at 9:10 pm CST on 1 November 2026, estimated intensity II (weak) in town. Every earthquake near West Plains

This page: a magnitude 2.1 earthquake was recorded 47 km (29 mi) east of West Plains, MO, at 12:14 pm CST on 22 December 2023 (18:14 UTC), 12 km deep.

USGS: 7 km E of Alton, Missouri

12:14 pm CST, Dec 22, 2023 · · 12 km deep · released about 41 lb of TNT

10 km30 km60 km120 km N Oregon County 7 kmRipley County 40 kmCarter County 43 kmRandolph County 48 kmShannon County 50 kmHowell County 51 kmFulton County 57 kmSharp County 61 kmLawrence County 76 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
12:14 pm CST on 22 December 2023 ()
Where
47 km (29 mi) east of West Plains, MO · earthquakes near West Plains
Missouri today
every earthquake in Missouri in the last 24 hours
Magnitude
M 2.1 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Oregon County, 7 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1054 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 25 km (16 mi) from the epicentre. In West Plains, 47 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: Thayer.

How big was it?

This earthquake released about 41 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 5.8 370,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 260,000× the energy of this one
  3. Around the size people start to feel M 3.0 23× the energy of this one
  4. This earthquake M 2.1 about 41 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 36.7055, -91.3222. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Oregon County, MO 7 km (5 mi) WSW earthquakes near Oregon County
Ripley County, MO 40 km (25 mi) E earthquakes near Ripley County
Carter County, MO 43 km (27 mi) NE earthquakes near Carter County
Randolph County, AR 48 km (30 mi) SSE earthquakes near Randolph County
Shannon County, MO 50 km (31 mi) N earthquakes near Shannon County
Howell County, MO 51 km (32 mi) W earthquakes near Howell 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. 2.5 4 km SW of Thomasville, Missouri
  2. 2.2 10 km SSW of Birch Tree, Missouri
  3. 1.8 9 km W of Maynard, Arkansas
  4. 1.9 9 km SW of Koshkonong, Missouri
  5. 1.9 10 km NNE of Salem, Arkansas
  6. 2.3 11 km NNE of Salem, Arkansas
  7. 2.9 12 km WSW of Grandin, Missouri
  8. 2.2 13 km W of Maynard, 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.