QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

6 km ESE of Marston, Missouri

· 8.7 km deep · released about 49 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 15 kmLake County 19 kmFulton County 33 kmPemiscot County 38 kmObion County 39 kmMississippi County 43 kmDyer County 51 kmStoddard County 53 kmHickman County 55 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 2.1 (md)
Depth
8.7 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 15 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1841 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 49 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 49 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 36.4947, -89.5468. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 15 km (9 mi) SE of here earthquakes near New Madrid County
Lake County, TN 19 km (12 mi) NNW of here earthquakes near Lake County
Fulton County, KY 33 km (20 mi) W of here earthquakes near Fulton County
Pemiscot County, MO 38 km (24 mi) NE of here earthquakes near Pemiscot County
Obion County, TN 39 km (24 mi) WNW of here earthquakes near Obion County
Mississippi County, MO 43 km (27 mi) SSW of here earthquakes near Mississippi 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. 2.3 6 km WNW of Marston, Missouri
  2. 2.0 6 km ESE of Marston, Missouri
  3. 1.7 6 km E of Hayward, Missouri
  4. 2.4 6 km SE of Tiptonville, Tennessee
  5. 2.5 6 km ENE of Steele, Missouri
  6. 2.0 4 km ESE of Ridgely, Tennessee
  7. 1.8 6 km SE of Marston, Missouri
  8. 1.5 2 km NW of Ridgely, Tennessee
  9. 1.8 6 km W of East Prairie, Missouri
  10. 1.7 10 km ESE of Marston, Missouri
  11. 1.5 11 km N of Dyersburg, Tennessee
  12. 2.4 10 km NNW of Tiptonville, Tennessee
  13. 1.7 4 km NW of Ridgely, Tennessee
  14. 1.6 3 km ENE of Risco, Missouri
  15. 1.5 6 km S 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.