QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

5 km SSW of Charleston, Missouri

· 1.3 km deep · released about 72 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mississippi County 9 kmScott County 25 kmAlexander County 34 kmCarlisle County 36 kmBallard County 38 kmFulton County 40 kmNew Madrid County 40 kmHickman County 43 kmPulaski County 44 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
1.3 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Mississippi County, 9 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 758 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 3 people have reported feeling it to USGS.

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 36.8777, -89.3788. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mississippi County, MO 9 km (6 mi) NW of here earthquakes near Mississippi County
Scott County, MO 25 km (16 mi) SE of here earthquakes near Scott County
Alexander County, IL 34 km (21 mi) S of here earthquakes near Alexander County
Carlisle County, KY 36 km (22 mi) W of here earthquakes near Carlisle County
Ballard County, KY 38 km (24 mi) WSW of here earthquakes near Ballard County
Fulton County, KY 40 km (25 mi) NNW of here earthquakes near Fulton County

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

Aftershocks so far

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

  1. 2.4 2 km NNW of Marston, Missouri
  2. 1.7 1 km NNW of Marston, Missouri
  3. 2.2 4 km WSW of Howardville, Missouri
  4. 1.5 4 km WSW of Howardville, Missouri
  5. 1.5 4 km WSW of Howardville, Missouri
  6. 1.8 3 km WSW of Howardville, Missouri
  7. 1.8 4 km SSE of Matthews, Missouri
  8. 1.5 7 km ESE of Marston, Missouri
  9. 1.7 5 km ESE of Marston, Missouri
  10. 1.7 3 km SE of Marston, Missouri
  11. 2.6 4 km WSW of Howardville, Missouri
  12. 2.2 1 km N of Marston, Missouri
  13. 1.9 4 km WSW of Howardville, Missouri
  14. 2.1 4 km WSW of Howardville, Missouri
  15. 3.0 4 km W of Howardville, 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.