QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

9 km N of New Madrid, Missouri

· 9.6 km deep · released about 16 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 14 kmMississippi County 28 kmFulton County 34 kmLake County 38 kmStoddard County 42 kmScott County 42 kmObion County 49 kmHickman County 51 kmCarlisle 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
9.6 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 14 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 839 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 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 36.6715, -89.5383. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 14 km (8 mi) NE of here earthquakes near New Madrid County
Mississippi County, MO 28 km (17 mi) SW of here earthquakes near Mississippi County
Fulton County, KY 34 km (21 mi) WNW of here earthquakes near Fulton County
Lake County, TN 38 km (24 mi) N of here earthquakes near Lake County
Stoddard County, MO 42 km (26 mi) ESE of here earthquakes near Stoddard County
Scott County, MO 42 km (26 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. 1.5 3 km W of Marston, Missouri
  2. 1.6 7 km SE of Marston, Missouri
  3. 1.8 5 km NNW of Ridgely, Tennessee
  4. 1.5 4 km WNW of Marston, Missouri
  5. 1.8 8 km E of Marston, Missouri
  6. 1.7 1 km SSW of Ridgely, Tennessee
  7. 1.7 6 km ESE of Marston, Missouri
  8. 2.0 2 km NW of Marston, Missouri
  9. 2.8 6 km NW of Tiptonville, Tennessee
  10. 2.2 8 km SE of Matthews, Missouri
  11. 1.8 3 km NNE of Ridgely, Tennessee
  12. 1.8 7 km NNW of Ridgely, Tennessee
  13. 2.0 2 km SE of Howardville, Missouri
  14. 2.3 1 km ESE of Howardville, Missouri
  15. 2.5 2 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.