QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

8 km ENE of Seymour, Tennessee

· 18 km deep · released about 130 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sevier County 18 kmJefferson County 23 kmKnox County 28 kmBlount County 36 kmGrainger County 42 kmSwain County 42 kmUnion County 44 kmCocke County 47 kmHamblen County 47 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
18 km below the surface
Felt
no reports yet
Nearest
Sevier County, 18 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2246 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 130 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 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 80,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.2× the energy of this one
  4. This earthquake M 2.4 about 130 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 35.9192, -83.6393. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sevier County, TN 18 km (11 mi) NW of here earthquakes near Sevier County
Jefferson County, TN 23 km (14 mi) SW of here earthquakes near Jefferson County
Knox County, TN 28 km (17 mi) ESE of here earthquakes near Knox County
Blount County, TN 36 km (23 mi) NE of here earthquakes near Blount County
Grainger County, TN 42 km (26 mi) SSW of here earthquakes near Grainger County
Swain County, NC 42 km (26 mi) NNW of here earthquakes near Swain County

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

Aftershocks so far

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

  1. 2.6 Kentucky-Tennessee border region
  2. 2.7 3 km S of Blaine, Tennessee
  3. 2.0 3 km SSW of Maryville, Tennessee
  4. 1.8 6 km NNW of Farragut, Tennessee
  5. 2.5 Tennessee
  6. 2.0 3 km E of Rutledge, Tennessee
  7. 2.2 Kentucky-Tennessee border region
  8. 2.5 2 km N of Farragut, Tennessee
  9. 2.4 0 km NE of Alcoa, Tennessee
  10. 2.2 1 km SE of Alcoa, Tennessee
  11. 2.4 6 km W of Pittman Center, Tennessee
  12. 2.3 1 km NNW of Wildwood, Tennessee
  13. 2.1 2 km NW of Wildwood, Tennessee
  14. 2.6 9 km ENE of Garland, Tennessee
  15. 2.5 8 km WSW of New Market, 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.