QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

6 km NE of New Madrid, Missouri

· 8.5 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 16 kmMississippi County 27 kmFulton County 28 kmLake County 33 kmObion County 43 kmHickman County 46 kmScott County 47 kmStoddard County 48 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 1.8 (md)
Depth
8.5 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 16 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 818 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 15 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 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 36.6330, -89.4858. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 16 km (10 mi) ENE of here earthquakes near New Madrid County
Mississippi County, MO 27 km (17 mi) SW of here earthquakes near Mississippi County
Fulton County, KY 28 km (17 mi) WNW of here earthquakes near Fulton County
Lake County, TN 33 km (21 mi) N of here earthquakes near Lake County
Obion County, TN 43 km (27 mi) NW of here earthquakes near Obion County
Hickman County, KY 46 km (29 mi) W of here earthquakes near Hickman 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. 1.7 3 km NNE of Ridgely, Tennessee
  2. 2.1 3 km NNE of Ridgely, Tennessee
  3. 1.8 6 km ESE of Marston, Missouri
  4. 1.8 6 km SE of Marston, Missouri
  5. 1.9 3 km SSE of Pinhook, Missouri
  6. 2.0 4 km WSW of Marston, Missouri
  7. 2.1 1 km NE of Ridgely, Tennessee
  8. 2.2 6 km W of Tiptonville, Tennessee
  9. 1.8 1 km N of Howardville, Missouri
  10. 1.5 3 km W of Marston, Missouri
  11. 1.6 7 km SE of Marston, Missouri
  12. 1.8 5 km NNW of Ridgely, Tennessee
  13. 1.5 4 km WNW of Marston, Missouri
  14. 1.8 8 km E of Marston, Missouri
  15. 1.7 1 km SSW 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.