QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

11 km SE of Williamsville, Missouri

· 4.2 km deep · released about 350 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Butler County 20 kmWayne County 25 kmCarter County 42 kmRipley County 44 kmStoddard County 47 kmClay County 58 kmBollinger County 62 kmMadison County 66 kmReynolds County 69 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 2.7 (md)
Depth
4.2 km below the surface
Felt
19 reports · strongest reported intensity IV
Nearest
Butler County, 20 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1475 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 19 people have reported feeling it to USGS.

How big was it?

This earthquake released about 350 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 43,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 31,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.7× the energy of this one
  4. This earthquake M 2.7 about 350 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 36.8893, -90.4783. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Butler County, MO 20 km (13 mi) NNW of here earthquakes near Butler County
Wayne County, MO 25 km (15 mi) S of here earthquakes near Wayne County
Carter County, MO 42 km (26 mi) E of here earthquakes near Carter County
Ripley County, MO 44 km (27 mi) NE of here earthquakes near Ripley County
Stoddard County, MO 47 km (29 mi) W of here earthquakes near Stoddard County
Clay County, AR 58 km (36 mi) N of here earthquakes near Clay County

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

Aftershocks so far

16 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
  13. 2.3 9 km ESE of Williamsville, Missouri
  14. 2.7 4 km ENE of Grandin, Missouri
  15. 2.4 13 km E of Williamsville, 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 86 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.