QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

10 km SSE of Matthews, Missouri

· 15 km deep · released about 94 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 15 kmMississippi County 26 kmFulton County 33 kmLake County 39 kmScott County 41 kmStoddard County 42 kmObion County 49 kmHickman County 49 kmCarlisle 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
15 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 15 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2620 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 36.6825, -89.5235. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 15 km (10 mi) NE of here earthquakes near New Madrid County
Mississippi County, MO 26 km (16 mi) SW of here earthquakes near Mississippi County
Fulton County, KY 33 km (21 mi) WNW of here earthquakes near Fulton County
Lake County, TN 39 km (24 mi) N of here earthquakes near Lake County
Scott County, MO 41 km (25 mi) S of here earthquakes near Scott County
Stoddard County, MO 42 km (26 mi) ESE of here earthquakes near Stoddard 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. 1.8 12 km N of Samburg, Tennessee
  2. 2.3 13 km N of Samburg, Tennessee
  3. 1.8 6 km NW of Ridgely, Tennessee
  4. 1.7 9 km NNE of North Lilbourn, Missouri
  5. 1.6 8 km SSE of Marston, Missouri
  6. 1.7 3 km E of Marston, Missouri
  7. 2.0 3 km NW of Marston, Missouri
  8. 2.1 3 km NW of Marston, Missouri
  9. 1.8 2 km WNW of Ridgely, Tennessee
  10. 1.5 1 km NW of Ridgely, Tennessee
  11. 1.6 southeastern Missouri
  12. 2.1 2 km SSW of Ridgely, Tennessee
  13. 1.6 1 km NW of Ridgely, Tennessee
  14. 2.8 2 km NW of Ridgely, Tennessee
  15. 2.7 2 km NW 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.