Earthquake · reviewed by a seismologist
M 2.3md
Earthquake near Dexter, MO
No earthquake was likely felt in Dexter in the 24 hours to 7:35 am CST (13:35 UTC). The last one was M 2.1, 22 km (14 mi) SSE, at 10:57 pm CDT on 6 August 2026, estimated intensity II (weak) in town. Every earthquake near Dexter
This page: a magnitude 2.3 earthquake was recorded 8 km (5 mi) southwest of Dexter, MO, at 1:22 pm CST on 18 February 2022 (19:22 UTC), 7.7 km deep.
USGS: 7 km SE of Dudley, Missouri
- When
- 1:22 pm CST on 18 February 2022 ()
- Where
- 8 km (5 mi) southwest of Dexter, MO · earthquakes near Dexter
- Missouri today
- every earthquake in Missouri in the last 24 hours
- Magnitude
- M 2.3 (md)
- Depth
- 7.7 km below the surface
- Felt
- no reports yet
- Nearest
- Stoddard County, 14 km NNE
- Nearest mapped fault
- Western Lowlands liquefaction features, 10 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1726 days ago
Earthquake alerts for Dexter, MO
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 35 km (22 mi) from the epicentre. In Dexter, 8 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.
Likely felt in: Malden 22 km, intensity II · Poplar Bluff 33 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 77 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
- Magna, Utah 2020 M 5.7 140,000× the energy of this one
- Around the size people start to feel M 3.0 12× the energy of this one
- This earthquake M 2.3 about 77 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
The largest earthquake within 50 km since 2016 was M 4.0 on 2021-11-18 — about 390 times the energy of this one.
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 36.7467, -90.0240. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Stoddard County, MO | 14 km (8 mi) | NNE | earthquakes near Stoddard County |
| Butler County, MO | 34 km (21 mi) | W | earthquakes near Butler County |
| New Madrid County, MO | 37 km (23 mi) | ESE | earthquakes near New Madrid County |
| Scott County, MO | 53 km (33 mi) | NE | earthquakes near Scott County |
| Clay County, AR | 55 km (34 mi) | SW | earthquakes near Clay County |
| Wayne County, MO | 56 km (35 mi) | NW | earthquakes near Wayne County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
29 earthquakes have been recorded within 50 km since this one.
- 1.7 2 km S of Howardville, Missouri
- 1.6 1 km NNE of Marston, Missouri
- 2.0 3 km SSE of Matthews, Missouri
- 2.0 5 km ESE of Howardville, Missouri
- 1.8 0 km ENE of Howardville, Missouri
- 1.9 2 km NNW of Marston, Missouri
- 1.8 5 km WNW of Marston, Missouri
- 1.7 3 km ENE of Lilbourn, Missouri
- 1.6 7 km N of New Madrid, Missouri
- 1.9 6 km E of Marston, Missouri
- 1.7 2 km NNE of Marston, Missouri
- 1.6 4 km ENE of Marston, Missouri
- 2.4 12 km SSE of Williamsville, Missouri
- 2.7 11 km SE of Williamsville, Missouri
- 1.7 4 km NNW of New Madrid, Missouri
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
- 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.