QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

5 km NNW of New Madrid, Missouri

· 8.5 km deep · released about 88 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 10 kmMississippi County 32 kmLake County 34 kmFulton County 34 kmStoddard County 43 kmScott County 46 kmObion County 47 kmPemiscot County 51 kmHickman County 52 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
8.5 km below the surface
Felt
4 reports · strongest reported intensity II
Nearest
New Madrid County, 10 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3030 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 88 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 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 88 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 36.6325, -89.5555. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 10 km (6 mi) ENE of here earthquakes near New Madrid County
Mississippi County, MO 32 km (20 mi) SW of here earthquakes near Mississippi County
Lake County, TN 34 km (21 mi) N of here earthquakes near Lake County
Fulton County, KY 34 km (21 mi) WNW of here earthquakes near Fulton County
Stoddard County, MO 43 km (26 mi) SE of here earthquakes near Stoddard County
Scott County, MO 46 km (29 mi) S of here earthquakes near Scott County

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

Aftershocks so far

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

  1. 2.1 3 km E of Ridgely, Tennessee
  2. 1.6 3 km E of Ridgely, Tennessee
  3. 2.0 6 km NNW of Ridgely, Tennessee
  4. 2.7 5 km ESE of Marston, Missouri
  5. 1.7 8 km NW of Tiptonville, Tennessee
  6. 1.6 3 km ENE of Ridgely, Tennessee
  7. 1.8 6 km SW of Tiptonville, Tennessee
  8. 1.8 7 km NNW of Tiptonville, Tennessee
  9. 2.0 7 km SE of Marston, Missouri
  10. 1.5 3 km ENE of Ridgely, Tennessee
  11. 1.7 3 km ENE of Ridgely, Tennessee
  12. 1.6 4 km WNW of Ridgely, Tennessee
  13. 1.8 2 km NNW of Ridgely, Tennessee
  14. 1.8 3 km WNW of Ridgely, Tennessee
  15. 1.7 3 km E of Ridgely, Tennessee

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

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