QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

13 km N of Samburg, Tennessee

· 4.2 km deep · released about 82 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fulton County 17 kmLake County 21 kmObion County 25 kmNew Madrid County 28 kmMississippi County 37 kmHickman County 41 kmPemiscot County 49 kmDyer County 50 kmCarlisle County 53 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 2.3 (md)
Depth
4.2 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Fulton County, 17 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2424 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 82 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 82 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 36.4995, -89.3703. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fulton County, KY 17 km (11 mi) WSW of here earthquakes near Fulton County
Lake County, TN 21 km (13 mi) NNE of here earthquakes near Lake County
Obion County, TN 25 km (16 mi) NW of here earthquakes near Obion County
New Madrid County, MO 28 km (17 mi) ESE of here earthquakes near New Madrid County
Mississippi County, MO 37 km (23 mi) S of here earthquakes near Mississippi County
Hickman County, KY 41 km (25 mi) WSW of here earthquakes near Hickman 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. 1.5 3 km SE of Ridgely, Tennessee
  2. 1.7 6 km ESE of Marston, Missouri
  3. 2.0 2 km NE of Marston, Missouri
  4. 2.0 9 km SE of Matthews, Missouri
  5. 1.6 9 km SE of Ridgely, Tennessee
  6. 1.6 5 km NE of Ridgely, Tennessee
  7. 1.7 7 km SE of Marston, Missouri
  8. 1.7 8 km SE of Marston, Missouri
  9. 1.5 2 km SW of Tiptonville, Tennessee
  10. 1.9 3 km SW of Lilbourn, Missouri
  11. 1.5 3 km SW of Marston, Missouri
  12. 2.7 7 km WNW of Risco, Missouri
  13. 2.0 9 km SE of Marston, Missouri
  14. 1.6 9 km S of Ridgely, Tennessee
  15. 1.6 6 km NW of Marston, 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.