QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

7 km N of Dandridge, Tennessee

· 15 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jefferson County 5 kmHamblen County 20 kmGrainger County 24 kmCocke County 31 kmSevier County 34 kmUnion County 45 kmKnox County 49 kmGreene County 51 kmHancock 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 2.4 (md)
Depth
15 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Jefferson County, 5 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1821 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 120 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 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 92,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.2× the energy of this one
  4. This earthquake M 2.4 about 120 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 36.0797, -83.4027. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jefferson County, TN 5 km (3 mi) NE of here earthquakes near Jefferson County
Hamblen County, TN 20 km (12 mi) SW of here earthquakes near Hamblen County
Grainger County, TN 24 km (15 mi) SSE of here earthquakes near Grainger County
Cocke County, TN 31 km (19 mi) NW of here earthquakes near Cocke County
Sevier County, TN 34 km (21 mi) NNE of here earthquakes near Sevier County
Union County, TN 45 km (28 mi) ESE of here earthquakes near Union County

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

Aftershocks so far

41 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. 2.3 4 km N of Pigeon Forge, Tennessee
  5. 2.1 2 km S of Blaine, Tennessee
  6. 2.1 7 km SE of Knoxville, Tennessee
  7. 1.9 5 km NNW of Mascot, Tennessee
  8. 1.9 9 km WSW of Mascot, Tennessee
  9. 1.8 0 km ESE of Knoxville, Tennessee
  10. 2.2 10 km ENE of Knoxville, Tennessee
  11. 2.5 6 km SE of Seymour, Tennessee
  12. 2.3 11 km ESE of Mascot, Tennessee
  13. 2.0 8 km ENE of Knoxville, Tennessee
  14. 2.0 8 km W of Seymour, Tennessee
  15. 2.1 8 km ENE 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.