QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

2 km NNE of Maynardville, Tennessee

· 5.1 km deep · released about 46 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Union County 4 kmGrainger County 25 kmClaiborne County 28 kmKnox County 34 kmCampbell County 36 kmJefferson County 40 kmAnderson County 40 kmHamblen County 47 kmBell 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 2.1 (md)
Depth
5.1 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Union County, 4 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2073 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 46 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 36.2738, -83.7898. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Union County, TN 4 km (3 mi) ESE of here earthquakes near Union County
Grainger County, TN 25 km (16 mi) W of here earthquakes near Grainger County
Claiborne County, TN 28 km (17 mi) SSW of here earthquakes near Claiborne County
Knox County, TN 34 km (21 mi) NNE of here earthquakes near Knox County
Campbell County, TN 36 km (22 mi) ESE of here earthquakes near Campbell County
Jefferson County, TN 40 km (25 mi) NW of here earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 2.6 11 km SW of Middlesboro, Kentucky
  2. 1.8 0 km ESE of Knoxville, Tennessee
  3. 2.2 10 km ENE of Knoxville, Tennessee
  4. 2.5 6 km SE of Seymour, Tennessee
  5. 2.3 11 km ESE of Mascot, Tennessee
  6. 2.0 8 km ENE of Knoxville, Tennessee
  7. 2.3 10 km S of Jellico, Tennessee
  8. 2.0 8 km W of Seymour, Tennessee
  9. 2.3 16 km N of Maynardville, Tennessee
  10. 2.1 8 km ENE of Seymour, Tennessee
  11. 2.4 5 km NNE of Bean Station, Tennessee
  12. 2.4 5 km ENE of Harrogate, Tennessee
  13. 2.3 2 km ENE of Rutledge, Tennessee
  14. 2.1 9 km ENE of Rutledge, Tennessee
  15. 2.1 4 km WNW of Dandridge, 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.