QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

1 km ESE of Howardville, Missouri

· 7.2 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 8 kmLake County 26 kmFulton County 35 kmMississippi County 39 kmPemiscot County 43 kmObion County 45 kmStoddard County 46 kmScott County 54 kmHickman 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
7.2 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
New Madrid County, 8 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 652 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 85 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 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× 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 85 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 36.5583, -89.5823. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 8 km (5 mi) ESE of here earthquakes near New Madrid County
Lake County, TN 26 km (16 mi) NNW of here earthquakes near Lake County
Fulton County, KY 35 km (22 mi) W of here earthquakes near Fulton County
Mississippi County, MO 39 km (24 mi) SW of here earthquakes near Mississippi County
Pemiscot County, MO 43 km (27 mi) NNE of here earthquakes near Pemiscot County
Obion County, TN 45 km (28 mi) WNW of here earthquakes near Obion 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 4 km SE of Ridgely, Tennessee
  2. 1.9 4 km WSW of Howardville, Missouri
  3. 1.8 5 km ENE of Caruthersville, Missouri
  4. 1.9 12 km E of New Madrid, Missouri
  5. 1.6 7 km W of East Prairie, Missouri
  6. 2.4 6 km NNE of Ridgely, Tennessee
  7. 2.4 2 km NNW of Marston, Missouri
  8. 1.7 1 km NNW of Marston, Missouri
  9. 2.2 4 km WSW of Howardville, Missouri
  10. 1.5 4 km WSW of Howardville, Missouri
  11. 1.5 4 km WSW of Howardville, Missouri
  12. 1.8 3 km WSW of Howardville, Missouri
  13. 1.8 4 km SSE of Matthews, Missouri
  14. 2.0 3 km SSW of Ridgely, Tennessee
  15. 1.9 8 km SSE 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.