QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

2 km WSW of Howardville, Missouri

· 6.8 km deep · released about 16 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 5 kmLake County 28 kmFulton County 39 kmPemiscot County 41 kmMississippi County 42 kmStoddard County 44 kmObion County 48 kmScott County 55 kmDyer County 59 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
6.8 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 5 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3688 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 5.8 970,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 680,000× the energy of this one
  3. Around the size people start to feel M 3.0 61× 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 36.5575, -89.6228. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 5 km (3 mi) SE of here earthquakes near New Madrid County
Lake County, TN 28 km (17 mi) NNW of here earthquakes near Lake County
Fulton County, KY 39 km (24 mi) W of here earthquakes near Fulton County
Pemiscot County, MO 41 km (26 mi) NNE of here earthquakes near Pemiscot County
Mississippi County, MO 42 km (26 mi) SW of here earthquakes near Mississippi 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

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

  1. 1.6 southeastern Missouri
  2. 2.0 southeastern Missouri
  3. 2.4 5 km NW of Marston, Missouri
  4. 2.0 7 km ESE of Marston, Missouri
  5. 1.8 5 km WNW of Marston, Missouri
  6. 1.9 9 km NNW of Tiptonville, Tennessee
  7. 1.9 7 km NW of Ridgely, Tennessee
  8. 1.7 3 km NNW of Ridgely, Tennessee
  9. 1.9 6 km NW of Tiptonville, Tennessee
  10. 1.8 5 km SE of Marston, Missouri
  11. 1.9 10 km SSE of New Madrid, Missouri
  12. 2.1 6 km SE of Marston, Missouri
  13. 1.7 1 km S of Caruthersville, Missouri
  14. 2.9 1 km S of Caruthersville, Missouri
  15. 1.5 6 km SSW of Caruthersville, 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.