QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

4 km ENE of North Lilbourn, Missouri

· 11 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 8 kmLake County 32 kmMississippi County 34 kmFulton County 35 kmStoddard County 43 kmObion County 47 kmScott County 48 kmPemiscot County 49 kmHickman County 54 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 1.8 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 8 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1658 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 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 36.6128, -89.5727. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 8 km (5 mi) ENE of here earthquakes near New Madrid County
Lake County, TN 32 km (20 mi) NNW of here earthquakes near Lake County
Mississippi County, MO 34 km (21 mi) SW of here earthquakes near Mississippi County
Fulton County, KY 35 km (22 mi) W of here earthquakes near Fulton County
Stoddard County, MO 43 km (27 mi) SE of here earthquakes near Stoddard County
Obion County, TN 47 km (29 mi) NW of here earthquakes near Obion County

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

Aftershocks so far

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

  1. 1.7 3 km ENE of Lilbourn, Missouri
  2. 2.5 7 km SE of Ridgely, Tennessee
  3. 1.6 7 km N of New Madrid, Missouri
  4. 1.5 4 km NW of Ridgely, Tennessee
  5. 1.9 6 km E of Marston, Missouri
  6. 1.8 southeastern Missouri
  7. 1.8 4 km N of Ridgely, Tennessee
  8. 2.5 4 km NNE of Ridgely, Tennessee
  9. 1.7 2 km NNE of Marston, Missouri
  10. 2.5 2 km SSW of Caruthersville, Missouri
  11. 1.6 4 km ENE of Marston, Missouri
  12. 1.8 6 km ESE of Marston, Missouri
  13. 1.6 6 km NW of Ridgely, Tennessee
  14. 2.0 7 km SE of Marston, Missouri
  15. 1.7 4 km NNW of New Madrid, 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.