QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

0 km NNE of Howardville, Missouri

· 7.3 km deep · released about 13 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 6 kmLake County 29 kmFulton County 37 kmMississippi County 39 kmPemiscot County 44 kmStoddard County 44 kmObion County 47 kmScott County 53 kmHickman 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 1.8 (md)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 6 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2455 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 13 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 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 840,000× the energy of this one
  3. Around the size people start to feel M 3.0 75× the energy of this one
  4. This earthquake M 1.8 about 13 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 36.5735, -89.5992. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 6 km (3 mi) ESE of here earthquakes near New Madrid County
Lake County, TN 29 km (18 mi) NNW of here earthquakes near Lake County
Fulton County, KY 37 km (23 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 44 km (27 mi) NNE of here earthquakes near Pemiscot County
Stoddard County, MO 44 km (27 mi) SE of here earthquakes near Stoddard County

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

Aftershocks so far

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

  1. 2.1 9 km NNE of Tiptonville, Tennessee
  2. 1.5 8 km NNE of Tiptonville, Tennessee
  3. 2.0 5 km NW of Ridgely, Tennessee
  4. 1.7 9 km ESE of Marston, Missouri
  5. 1.8 2 km W of Ridgely, Tennessee
  6. 1.8 5 km SSE of Ridgely, Tennessee
  7. 1.5 3 km SSW of Hornbeak, Tennessee
  8. 2.4 5 km ESE of Marston, Missouri
  9. 1.8 2 km SSE of Howardville, Missouri
  10. 2.2 8 km N of New Madrid, Missouri
  11. 1.9 1 km ENE of Risco, Missouri
  12. 2.2 6 km ESE of Marston, Missouri
  13. 2.3 9 km NW of Tiptonville, Tennessee
  14. 2.7 3 km SSE of Tiptonville, Tennessee
  15. 1.6 7 km NNE 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.