QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

9 km ESE of Williamsville, Missouri

· 7.1 km deep · released about 72 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Wayne County 19 kmButler County 25 kmCarter County 44 kmStoddard County 45 kmRipley County 50 kmBollinger County 56 kmMadison County 60 kmClay County 64 kmReynolds County 67 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
Magnitude
M 2.3 (md)
Depth
7.1 km below the surface
Felt
no reports yet
Nearest
Wayne County, 19 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 896 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 72 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.

  1. Mineral, Virginia 2011 M 5.8 210,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 72 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.

Where

Epicentre 36.9392, -90.4457. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Wayne County, MO 19 km (12 mi) S of here earthquakes near Wayne County
Butler County, MO 25 km (16 mi) N of here earthquakes near Butler County
Carter County, MO 44 km (28 mi) E of here earthquakes near Carter County
Stoddard County, MO 45 km (28 mi) WNW of here earthquakes near Stoddard County
Ripley County, MO 50 km (31 mi) NE of here earthquakes near Ripley County
Bollinger County, MO 56 km (35 mi) SW of here earthquakes near Bollinger County

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

Aftershocks so far

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

  1. 2.4 14 km SE of Ellsinore, Missouri
  2. 2.1 12 km ENE of Greenville, Missouri
  3. 2.9 14 km SSW of Williamsville, Missouri
  4. 2.3 8 km WSW of Bernie, Missouri
  5. 2.4 7 km W of Williamsville, Missouri
  6. 2.6 12 km E of Williamsville, Missouri
  7. 2.6 5 km SW of Puxico, Missouri
  8. 3.1 4 km S of Puxico, Missouri
  9. 2.9 12 km WSW of Grandin, Missouri
  10. 2.5 13 km SSW of Williamsville, Missouri
  11. 2.5 4 km E of Doniphan, Missouri
  12. 2.7 5 km E of Doniphan, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.0 on 2021-11-18 — it released about 420 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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