QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

11 km S of Tusculum, Tennessee

· 6.1 km deep · released about 150 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Greene County 16 kmMadison County 23 kmUnicoi County 29 kmWashington County 33 kmCocke County 38 kmYancey County 44 kmHawkins County 46 kmHamblen County 50 kmMitchell 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 2.5 (md)
Depth
6.1 km below the surface
Felt
5 reports · strongest reported intensity III
Nearest
Greene County, 16 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1650 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 150 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 99,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 70,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.2× the energy of this one
  4. This earthquake M 2.5 about 150 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 36.0703, -82.7372. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Greene County, TN 16 km (10 mi) SE of here earthquakes near Greene County
Madison County, NC 23 km (14 mi) N of here earthquakes near Madison County
Unicoi County, TN 29 km (18 mi) W of here earthquakes near Unicoi County
Washington County, TN 33 km (21 mi) SW of here earthquakes near Washington County
Cocke County, TN 38 km (24 mi) ENE of here earthquakes near Cocke County
Yancey County, NC 44 km (27 mi) WNW of here earthquakes near Yancey County

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

Aftershocks so far

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

  1. 2.0 8 km ENE of Weaverville, North Carolina
  2. 1.7 8 km ENE of Weaverville, North Carolina
  3. 1.9 8 km E of Weaverville, North Carolina
  4. 2.1 4 km NNW of Weaverville, North Carolina
  5. 2.1 7 km NW of Weaverville, North Carolina
  6. 2.3 2 km ENE of Greeneville, Tennessee
  7. 1.8 8 km W of Bakersville, North Carolina
  8. 2.3 8 km NNW of Greeneville, Tennessee
  9. 1.9 1 km SW of Fall Branch, Tennessee
  10. 1.8 5 km NNW of Weaverville, North Carolina
  11. 1.9 5 km N of Weaverville, North Carolina
  12. 2.0 9 km NNE of Mosheim, Tennessee
  13. 2.5 17 km WSW of Marshall, North Carolina
  14. 1.6 7 km SSW of Banner Hill, Tennessee
  15. 2.4 9 km SSW of Banner Hill, 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.