QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

6 km N of Greeneville, Tennessee

· 17 km deep · released about 88 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Greene County 6 kmHawkins County 27 kmWashington County 30 kmUnicoi County 38 kmHamblen County 40 kmMadison County 41 kmCocke County 44 kmHancock County 49 kmSullivan County 56 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 2.3 (md)
Depth
17 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Greene County, 6 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2097 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 7 people have reported feeling it to USGS.

How big was it?

This earthquake released about 88 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 88 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 36.2240, -82.8172. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Greene County, TN 6 km (4 mi) NNE of here earthquakes near Greene County
Hawkins County, TN 27 km (17 mi) SSE of here earthquakes near Hawkins County
Washington County, TN 30 km (19 mi) WSW of here earthquakes near Washington County
Unicoi County, TN 38 km (24 mi) WNW of here earthquakes near Unicoi County
Hamblen County, TN 40 km (25 mi) E of here earthquakes near Hamblen County
Madison County, NC 41 km (26 mi) NNW of here earthquakes near Madison County

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

Aftershocks so far

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

  1. 2.3 2 km ENE of Greeneville, Tennessee
  2. 2.4 5 km NNE of Bean Station, Tennessee
  3. 2.3 8 km NNW of Greeneville, Tennessee
  4. 1.9 1 km SW of Fall Branch, Tennessee
  5. 2.4 Kentucky-Tennessee border region
  6. 2.5 6 km E of Sneedville, Tennessee
  7. 2.0 9 km NNE of Mosheim, Tennessee
  8. 2.0 10 km NE of Mooresburg, Tennessee
  9. 1.6 7 km SSW of Banner Hill, Tennessee
  10. 2.4 9 km SSW of Banner Hill, Tennessee
  11. 2.8 8 km SW of Banner Hill, Tennessee
  12. 2.4 6 km NW of Greeneville, 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.