QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

6 km NW of Parma, Missouri

· 17 km deep · released about 44 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N New Madrid County 21 kmStoddard County 23 kmButler County 47 kmLake County 50 kmPemiscot County 50 kmScott County 52 kmMississippi County 55 kmClay County 58 kmDunklin County 58 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
17 km below the surface
Felt
no reports yet
Nearest
New Madrid County, 21 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1479 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 44 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 5.8 340,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 240,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 44 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 36.6522, -89.8772. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
New Madrid County, MO 21 km (13 mi) WNW of here earthquakes near New Madrid County
Stoddard County, MO 23 km (14 mi) SSE of here earthquakes near Stoddard County
Butler County, MO 47 km (29 mi) E of here earthquakes near Butler County
Lake County, TN 50 km (31 mi) NW of here earthquakes near Lake County
Pemiscot County, MO 50 km (31 mi) N of here earthquakes near Pemiscot County
Scott County, MO 52 km (32 mi) SSW of here earthquakes near Scott County

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

Aftershocks so far

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

  1. 1.8 southeastern Missouri
  2. 1.8 5 km SE of Marston, Missouri
  3. 1.6 5 km ESE of Marston, Missouri
  4. 1.7 4 km WNW of Marston, Missouri
  5. 2.7 2 km SW of Tiptonville, Tennessee
  6. 1.9 southeastern Missouri
  7. 1.6 7 km NNW of Ridgely, Tennessee
  8. 1.5 5 km ENE of Hayward, Missouri
  9. 2.1 3 km WNW of Marston, Missouri
  10. 2.0 3 km E of Risco, Missouri
  11. 2.2 4 km NW of New Madrid, Missouri
  12. 2.0 5 km SE of Marston, Missouri
  13. 1.6 8 km E of Hayward, Missouri
  14. 2.0 3 km NW of Marston, Missouri
  15. 2.4 southeastern 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.