QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

9 km NNW of Advance, Missouri

· 3.5 km deep · released about 40 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bollinger County 17 kmCape Girardeau County 34 kmStoddard County 36 kmScott County 38 kmWayne County 44 kmMadison County 47 kmAlexander County 54 kmPerry County 61 kmButler County 65 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 2.1 (md)
Depth
3.5 km below the surface
Felt
no reports yet
Nearest
Bollinger County, 17 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3743 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 40 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 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 37.1770, -89.9607. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bollinger County, MO 17 km (10 mi) SSE of here earthquakes near Bollinger County
Cape Girardeau County, MO 34 km (21 mi) SW of here earthquakes near Cape Girardeau County
Stoddard County, MO 36 km (22 mi) N of here earthquakes near Stoddard County
Scott County, MO 38 km (23 mi) WNW of here earthquakes near Scott County
Wayne County, MO 44 km (28 mi) E of here earthquakes near Wayne County
Madison County, MO 47 km (29 mi) SE of here earthquakes near Madison County

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

Aftershocks so far

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

  1. 2.1 12 km ENE of Greenville, Missouri
  2. 2.6 12 km E of Williamsville, Missouri
  3. 1.9 6 km WNW of Cape Girardeau, Missouri
  4. 2.6 5 km SW of Puxico, Missouri
  5. 3.1 4 km S of Puxico, Missouri
  6. 2.1 4 km N of Marquand, Missouri
  7. 2.0 3 km ESE of Dexter, Missouri
  8. 2.4 13 km E of Williamsville, Missouri
  9. 2.0 3 km SSW of McClure, Illinois
  10. 2.0 3 km WSW of Cape Girardeau, Missouri
  11. 2.4 southeastern Missouri
  12. 2.3 10 km WNW of Puxico, Missouri
  13. 2.0 15 km SSW of Cherokee Pass, Missouri
  14. 2.3 7 km SE of Dudley, Missouri
  15. 1.7 5 km NW of Cape Girardeau, 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

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