QuakeIndex

Earthquake · reviewed by a seismologist

M 3.7mw

12 km NNW of Dyersburg, Tennessee

· 14 km deep · released about 5.2 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Dyer County 10 kmLake County 22 kmPemiscot County 32 kmObion County 36 kmLauderdale County 45 kmCrockett County 45 kmGibson County 48 kmFulton County 52 kmNew Madrid 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 3.7 (mw)
Depth
14 km below the surface
Felt
1017 reports · strongest reported intensity V
Measured shaking
intensity V (ShakeMap)
Nearest
Dyer County, 10 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1035 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1017 people have reported feeling it to USGS.

How big was it?

This earthquake released about 5.2 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.7 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 33,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,500× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,000× the energy of this one
  4. This earthquake M 3.7 about 5.2 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 11× more

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 36.1358, -89.4398. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Dyer County, TN 10 km (6 mi) NNW of here earthquakes near Dyer County
Lake County, TN 22 km (14 mi) S of here earthquakes near Lake County
Pemiscot County, MO 32 km (20 mi) ESE of here earthquakes near Pemiscot County
Obion County, TN 36 km (23 mi) SW of here earthquakes near Obion County
Lauderdale County, TN 45 km (28 mi) NNE of here earthquakes near Lauderdale County
Crockett County, TN 45 km (28 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

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

  1. 1.9 1 km NNW of Marston, Missouri
  2. 1.6 2 km SSW of Howardville, Missouri
  3. 1.7 3 km NNW of Ridgely, Tennessee
  4. 1.7 1 km NW of Ridgely, Tennessee
  5. 1.7 2 km NNW of Ridgely, Tennessee
  6. 1.5 7 km SE of Ridgely, Tennessee
  7. 1.8 7 km ENE of Steele, Missouri
  8. 1.7 14 km WSW of Hickman, Kentucky
  9. 2.1 8 km SE of Ridgely, Tennessee
  10. 1.7 5 km NW of Ridgely, Tennessee
  11. 1.7 5 km NW of Ridgely, Tennessee
  12. 2.3 5 km NW of Ridgely, Tennessee
  13. 2.5 7 km SE of Marston, Missouri
  14. 2.2 4 km ESE of Cooter, Missouri
  15. 1.6 7 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

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