QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

6 km WNW of Marston, Missouri

· 6.5 km deep · released about 98 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 5 kmLake County 29 kmPemiscot County 39 kmStoddard County 41 kmFulton County 44 kmMississippi County 46 kmObion County 52 kmDunklin County 56 kmScott County 56 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
6.5 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 5 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1700 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 98 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 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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 36.5485, -89.6775. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 5 km (3 mi) SSW of here earthquakes near New Madrid County
Lake County, TN 29 km (18 mi) NW of here earthquakes near Lake County
Pemiscot County, MO 39 km (24 mi) NNE of here earthquakes near Pemiscot County
Stoddard County, MO 41 km (26 mi) SE of here earthquakes near Stoddard County
Fulton County, KY 44 km (27 mi) W of here earthquakes near Fulton County
Mississippi County, MO 46 km (29 mi) SW of here earthquakes near Mississippi County

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

Aftershocks so far

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

  1. 1.7 12 km SSE of Ridgely, Tennessee
  2. 1.8 4 km NNE of Ridgely, Tennessee
  3. 1.9 2 km N of Tiptonville, Tennessee
  4. 1.8 1 km S of Risco, Missouri
  5. 2.1 7 km SW of Caruthersville, Missouri
  6. 1.6 8 km NW of Tiptonville, Tennessee
  7. 3.2 12 km SE of Ridgely, Tennessee
  8. 2.1 southeastern Missouri
  9. 2.6 13 km SE of Ridgely, Tennessee
  10. 1.6 5 km SSE of Ridgely, Tennessee
  11. 1.5 5 km SSE of Ridgely, Tennessee
  12. 1.6 1 km ESE of Marston, Missouri
  13. 2.1 7 km SSE of Ridgely, Tennessee
  14. 2.0 4 km WSW of Tiptonville, Tennessee
  15. 1.6 5 km SE of Marston, 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.