QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

8 km N of Dyersburg, Tennessee

· 11 km deep · released about 490 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Dyer County 6 kmLake County 26 kmObion County 36 kmPemiscot County 37 kmCrockett County 40 kmGibson County 44 kmLauderdale County 44 kmFulton County 53 kmNew Madrid 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 2.8 (md)
Depth
11 km below the surface
Felt
81 reports · strongest reported intensity III
Nearest
Dyer County, 6 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1580 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 81 people have reported feeling it to USGS.

How big was it?

This earthquake released about 490 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 31,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.9× the energy of this one
  4. This earthquake M 2.8 about 490 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 36.1105, -89.3975. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Dyer County, TN 6 km (4 mi) N of here earthquakes near Dyer County
Lake County, TN 26 km (16 mi) SSE of here earthquakes near Lake County
Obion County, TN 36 km (22 mi) SW of here earthquakes near Obion County
Pemiscot County, MO 37 km (23 mi) ESE of here earthquakes near Pemiscot County
Crockett County, TN 40 km (25 mi) NW of here earthquakes near Crockett County
Gibson County, TN 44 km (27 mi) WNW of here earthquakes near Gibson County

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

Aftershocks so far

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

  1. 2.3 7 km ENE of Steele, Missouri
  2. 1.7 11 km S of Ridgely, Tennessee
  3. 1.7 6 km NW of Dyersburg, Tennessee
  4. 1.6 5 km NW of Tiptonville, Tennessee
  5. 1.8 7 km NNW of Dyersburg, Tennessee
  6. 1.5 5 km ESE of Marston, Missouri
  7. 1.6 5 km SSE of Ridgely, Tennessee
  8. 1.6 6 km ENE of Steele, Missouri
  9. 1.7 2 km S of Tiptonville, Tennessee
  10. 1.8 1 km SW of Ridgely, Tennessee
  11. 2.1 5 km WNW of Tiptonville, Tennessee
  12. 1.7 9 km NW of Tiptonville, Tennessee
  13. 2.0 southeastern Missouri
  14. 2.0 southeastern Missouri
  15. 1.8 10 km NNW of Dyersburg, 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.