QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Kentucky-Tennessee border region

· 6.6 km deep · released about 52 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grainger County 1 kmHamblen County 23 kmJefferson County 27 kmClaiborne County 28 kmUnion County 29 kmHancock County 37 kmKnox County 50 kmBell County 52 kmCocke County 54 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 2.2 (md)
Depth
6.6 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Grainger County, 1 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1361 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 52 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 290,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 52 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 36.2818, -83.5155. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grainger County, TN 1 km (0 mi) NW of here earthquakes near Grainger County
Hamblen County, TN 23 km (15 mi) WNW of here earthquakes near Hamblen County
Jefferson County, TN 27 km (17 mi) NNW of here earthquakes near Jefferson County
Claiborne County, TN 28 km (17 mi) SSE of here earthquakes near Claiborne County
Union County, TN 29 km (18 mi) E of here earthquakes near Union County
Hancock County, TN 37 km (23 mi) SW of here earthquakes near Hancock County

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

Aftershocks so far

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

  1. 2.3 1 km W of Rutledge, Tennessee
  2. 2.0 4 km WNW of Mascot, Tennessee
  3. 1.9 3 km NW of Mascot, Tennessee
  4. 2.1 2 km S of Blaine, Tennessee
  5. 1.9 5 km NNW of Mascot, Tennessee
  6. 1.9 9 km WSW of Mascot, Tennessee
  7. 2.6 11 km SW of Middlesboro, Kentucky
  8. 2.2 10 km ENE of Knoxville, Tennessee
  9. 2.3 11 km ESE of Mascot, Tennessee
  10. 2.0 8 km ENE of Knoxville, Tennessee
  11. 2.3 16 km N of Maynardville, Tennessee
  12. 2.1 8 km ENE of Seymour, Tennessee
  13. 2.4 5 km NNE of Bean Station, Tennessee
  14. 2.4 5 km ENE of Harrogate, Tennessee
  15. 2.3 2 km ENE of Rutledge, 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.