QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

9 km W of Clinton, Tennessee

· 4.2 km deep · released about 69 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Anderson County 4 kmKnox County 29 kmCampbell County 35 kmMorgan County 37 kmRoane County 38 kmLoudon County 41 kmUnion County 41 kmScott County 45 kmBlount County 53 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
4.2 km below the surface
Felt
no reports yet
Nearest
Anderson County, 4 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 984 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 69 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 5.8 220,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 14× the energy of this one
  4. This earthquake M 2.2 about 69 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 36.0953, -84.2318. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Anderson County, TN 4 km (3 mi) SW of here earthquakes near Anderson County
Knox County, TN 29 km (18 mi) WNW of here earthquakes near Knox County
Campbell County, TN 35 km (22 mi) S of here earthquakes near Campbell County
Morgan County, TN 37 km (23 mi) E of here earthquakes near Morgan County
Roane County, TN 38 km (24 mi) NE of here earthquakes near Roane County
Loudon County, TN 41 km (25 mi) N of here earthquakes near Loudon County

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

Aftershocks so far

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

  1. 2.0 4 km WNW of Mascot, Tennessee
  2. 1.9 3 km NW of Mascot, Tennessee
  3. 1.8 0 km SE of Farragut, Tennessee
  4. 2.3 1 km S of Friendsville, Tennessee
  5. 1.8 5 km SSE of Friendsville, Tennessee
  6. 2.4 5 km SSE of Friendsville, Tennessee
  7. 1.7 4 km NE of Louisville, Tennessee
  8. 2.0 3 km WSW of Alcoa, Tennessee
  9. 2.2 3 km WSW of Alcoa, Tennessee
  10. 2.3 4 km SSW of Kingston, Tennessee
  11. 2.5 8 km NNE of Petros, Tennessee
  12. 2.1 2 km S of Blaine, Tennessee
  13. 2.1 7 km SE of Knoxville, Tennessee
  14. 1.9 5 km NNW of Mascot, Tennessee
  15. 1.9 9 km WSW of Mascot, 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.