QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

9 km NNW of Dyersburg, Tennessee

· 13 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Dyer County 7 kmLake County 25 kmPemiscot County 33 kmObion County 39 kmLauderdale County 42 kmCrockett County 43 kmGibson County 48 kmFulton County 54 kmDunklin County 56 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 1.9 (md)
Depth
13 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Dyer County, 7 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 593 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 25 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 620,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 440,000× the energy of this one
  3. Around the size people start to feel M 3.0 39× the energy of this one
  4. This earthquake M 1.9 about 25 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 36.1087, -89.4425. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Dyer County, TN 7 km (5 mi) NNW of here earthquakes near Dyer County
Lake County, TN 25 km (16 mi) S of here earthquakes near Lake County
Pemiscot County, MO 33 km (20 mi) ESE of here earthquakes near Pemiscot County
Obion County, TN 39 km (24 mi) SW of here earthquakes near Obion County
Lauderdale County, TN 42 km (26 mi) NNE of here earthquakes near Lauderdale County
Crockett County, TN 43 km (26 mi) NW of here earthquakes near Crockett County

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

Aftershocks so far

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

  1. 2.4 6 km SW of Tiptonville, Tennessee
  2. 1.9 5 km ESE of Marston, Missouri
  3. 2.0 4 km S of Tiptonville, Tennessee
  4. 2.0 4 km S of Holland, Missouri
  5. 1.9 5 km E of Marston, Missouri
  6. 1.8 9 km NW of Ridgely, Tennessee
  7. 1.8 2 km ESE of Marston, Missouri
  8. 1.6 4 km SSW of Ridgely, Tennessee
  9. 2.0 3 km N of Ridgely, Tennessee
  10. 2.1 3 km W of Ridgely, Tennessee
  11. 1.8 5 km NNE of Blytheville, Arkansas
  12. 2.2 6 km SSW of Tiptonville, Tennessee
  13. 2.0 5 km ESE of Marston, Missouri
  14. 1.9 4 km ESE of Ridgely, Tennessee
  15. 1.6 4 km ESE 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.