QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

7 km SSE of Ridgely, Tennessee

· 7.2 km deep · released about 6.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lake County 14 kmDyer County 18 kmPemiscot County 31 kmObion County 32 kmFulton County 45 kmNew Madrid County 47 kmCrockett County 52 kmGibson County 52 kmLauderdale County 52 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 1.6 (md)
Depth
7.2 km below the surface
Felt
no reports yet
Nearest
Lake County, 14 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3419 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 6.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 36.2083, -89.4450. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lake County, TN 14 km (9 mi) SSE of here earthquakes near Lake County
Dyer County, TN 18 km (11 mi) NNW of here earthquakes near Dyer County
Pemiscot County, MO 31 km (19 mi) E of here earthquakes near Pemiscot County
Obion County, TN 32 km (20 mi) WSW of here earthquakes near Obion County
Fulton County, KY 45 km (28 mi) SSW of here earthquakes near Fulton County
New Madrid County, MO 47 km (29 mi) SSE of here earthquakes near New Madrid County

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

Aftershocks so far

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

  1. 1.6 7 km ESE of Ridgely, Tennessee
  2. 2.0 4 km WSW of Howardville, Missouri
  3. 1.9 2 km WNW of Marston, Missouri
  4. 2.1 2 km NW of Marston, Missouri
  5. 2.3 4 km WSW of Howardville, Missouri
  6. 1.6 4 km NNW of Tiptonville, Tennessee
  7. 1.7 4 km NW of Marston, Missouri
  8. 1.7 4 km WSW of Howardville, Missouri
  9. 2.9 4 km WSW of Howardville, Missouri
  10. 2.7 5 km ESE of Marston, Missouri
  11. 2.2 2 km NW of Marston, Missouri
  12. 1.5 8 km NW of Ridgely, Tennessee
  13. 3.2 8 km SSE of Marston, Missouri
  14. 2.9 5 km WNW of Tiptonville, Tennessee
  15. 1.8 3 km WNW 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

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