QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

4 km ENE of North Lilbourn, Missouri

· 9.3 km deep · released about 16 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 8 kmLake County 33 kmMississippi County 34 kmFulton County 36 kmStoddard County 42 kmScott County 47 kmObion County 48 kmPemiscot County 50 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
9.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
New Madrid County, 8 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1361 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 16 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 5.8 930,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 660,000× the energy of this one
  3. Around the size people start to feel M 3.0 59× the energy of this one
  4. This earthquake M 1.8 about 16 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 36.6240, -89.5753. 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 33 km (21 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 36 km (22 mi) WNW of here earthquakes near Fulton County
Stoddard County, MO 42 km (26 mi) SE of here earthquakes near Stoddard County
Scott County, MO 47 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. 1.6 southeastern Missouri
  2. 1.6 6 km WSW of Tiptonville, Tennessee
  3. 1.6 southeastern Missouri
  4. 1.8 southeastern Missouri
  5. 1.6 southeastern Missouri
  6. 1.8 5 km SE of Marston, Missouri
  7. 1.6 7 km S of Catron, Missouri
  8. 1.8 2 km SSE of Howardville, Missouri
  9. 1.6 0 km WSW of Ridgely, Tennessee
  10. 2.0 3 km SE of Howardville, Missouri
  11. 1.9 6 km SSE of Ridgely, Tennessee
  12. 1.7 southeastern Missouri
  13. 1.8 7 km SSE of New Madrid, Missouri
  14. 1.7 6 km NW of Tiptonville, Tennessee
  15. 1.9 southeastern 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.