QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

7 km SW of Mascot, Tennessee

· 11 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Knox County 13 kmUnion County 31 kmJefferson County 32 kmSevier County 34 kmBlount County 37 kmAnderson County 38 kmGrainger County 39 kmHamblen County 53 kmCampbell County 55 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
1 report · strongest reported intensity II
Nearest
Knox County, 13 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2691 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 5.8 120,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 86,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.7× 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 36.0065, -83.7933. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Knox County, TN 13 km (8 mi) E of here earthquakes near Knox County
Union County, TN 31 km (19 mi) S of here earthquakes near Union County
Jefferson County, TN 32 km (20 mi) W of here earthquakes near Jefferson County
Sevier County, TN 34 km (21 mi) NW of here earthquakes near Sevier County
Blount County, TN 37 km (23 mi) NNE of here earthquakes near Blount County
Anderson County, TN 38 km (24 mi) ESE of here earthquakes near Anderson County

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

Aftershocks so far

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

  1. 2.0 2 km ESE of Friendsville, Tennessee
  2. 2.2 3 km W of Maryville, Tennessee
  3. 2.0 7 km WSW of Townsend, Tennessee
  4. 2.0 2 km S of Maryville, Tennessee
  5. 2.0 2 km ENE of Maryville, Tennessee
  6. 2.5 2 km SSW of Eagleton Village, Tennessee
  7. 1.8 6 km S of Friendsville, Tennessee
  8. 2.5 7 km WSW of New Market, Tennessee
  9. 2.1 2 km NNE of Maynardville, Tennessee
  10. 2.0 3 km SSW of Garland, Tennessee
  11. 2.3 5 km NE of Greenback, Tennessee
  12. 2.3 0 km SW of Knoxville, Tennessee
  13. 2.5 11 km SSW of Maryville, Tennessee
  14. 2.3 7 km W of New Market, Tennessee
  15. 2.5 7 km SE of Maryville, 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.