QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Kentucky-Tennessee border region

· 11 km deep · released about 100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Knox County 11 kmUnion County 30 kmJefferson County 34 kmSevier County 36 kmAnderson County 36 kmBlount County 37 kmGrainger County 40 kmCampbell County 53 kmHamblen 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 2.4 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Knox County, 11 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1068 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 100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 100,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.1× the energy of this one
  4. This earthquake M 2.4 about 100 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 36.0122, -83.8132. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Knox County, TN 11 km (7 mi) E of here earthquakes near Knox County
Union County, TN 30 km (19 mi) S of here earthquakes near Union County
Jefferson County, TN 34 km (21 mi) W of here earthquakes near Jefferson County
Sevier County, TN 36 km (22 mi) NW of here earthquakes near Sevier County
Anderson County, TN 36 km (23 mi) ESE of here earthquakes near Anderson County
Blount County, TN 37 km (23 mi) NNE of here earthquakes near Blount County

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

Aftershocks so far

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

  1. 1.9 9 km WSW of Mascot, Tennessee
  2. 1.8 2 km WNW of Maryville, Tennessee
  3. 1.8 0 km ESE of Knoxville, Tennessee
  4. 1.6 5 km WSW of Friendsville, Tennessee
  5. 2.2 10 km ENE of Knoxville, Tennessee
  6. 1.7 5 km NE of Greenback, Tennessee
  7. 1.8 5 km SW of Maryville, Tennessee
  8. 2.4 3 km WNW of Friendsville, Tennessee
  9. 1.5 2 km W of Maryville, Tennessee
  10. 2.5 6 km SE of Seymour, Tennessee
  11. 1.9 1 km ENE of Friendsville, Tennessee
  12. 2.3 11 km ESE of Mascot, Tennessee
  13. 2.6 2 km E of Greenback, Tennessee
  14. 2.0 8 km ENE of Knoxville, Tennessee
  15. 2.0 8 km W of Seymour, 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.