QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

2 km NE of Risco, Missouri

· 18 km deep · released about 94 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 12 kmStoddard County 34 kmLake County 38 kmPemiscot County 40 kmDunklin County 52 kmMississippi County 53 kmFulton County 54 kmScott County 57 kmButler County 57 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
18 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 12 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2900 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 94 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 5.8 160,000× 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 10× the energy of this one
  4. This earthquake M 2.3 about 94 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 36.5693, -89.7915. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 12 km (8 mi) WSW of here earthquakes near New Madrid County
Stoddard County, MO 34 km (21 mi) SSE of here earthquakes near Stoddard County
Lake County, TN 38 km (24 mi) NW of here earthquakes near Lake County
Pemiscot County, MO 40 km (25 mi) N of here earthquakes near Pemiscot County
Dunklin County, MO 52 km (32 mi) NNE of here earthquakes near Dunklin County
Mississippi County, MO 53 km (33 mi) WSW of here earthquakes near Mississippi County

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

Aftershocks so far

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

  1. 1.6 5 km NNW of Ridgely, Tennessee
  2. 1.6 7 km ESE of Marston, Missouri
  3. 1.6 6 km NW of Ridgely, Tennessee
  4. 2.3 4 km N of North Lilbourn, Missouri
  5. 2.2 8 km WSW of East Prairie, Missouri
  6. 1.8 7 km SE of Marston, Missouri
  7. 2.1 4 km E of Marston, Missouri
  8. 1.5 4 km SW of Tiptonville, Tennessee
  9. 1.6 9 km SSE of New Madrid, Missouri
  10. 1.5 5 km NNE of New Madrid, Missouri
  11. 1.6 2 km NE of Ridgely, Tennessee
  12. 2.9 1 km SSW of Howardville, Missouri
  13. 2.0 6 km ESE of Marston, Missouri
  14. 1.7 6 km ESE of Marston, Missouri
  15. 1.8 5 km W 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

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