QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

10 km NE of Maynardville, Tennessee

· 19 km deep · released about 320 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Union County 12 kmGrainger County 18 kmClaiborne County 21 kmJefferson County 38 kmHamblen County 41 kmCampbell County 41 kmKnox County 42 kmBell County 46 kmHancock County 49 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 2.7 (md)
Depth
19 km below the surface
Felt
6 reports · strongest reported intensity III
Nearest
Union County, 12 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3141 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 6 people have reported feeling it to USGS.

How big was it?

This earthquake released about 320 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 48,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 34,000× the energy of this one
  3. Around the size people start to feel M 3.0 3× the energy of this one
  4. This earthquake M 2.7 about 320 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 36.3187, -83.7092. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Union County, TN 12 km (7 mi) ENE of here earthquakes near Union County
Grainger County, TN 18 km (11 mi) WNW of here earthquakes near Grainger County
Claiborne County, TN 21 km (13 mi) SSW of here earthquakes near Claiborne County
Jefferson County, TN 38 km (24 mi) NW of here earthquakes near Jefferson County
Hamblen County, TN 41 km (26 mi) WNW of here earthquakes near Hamblen County
Campbell County, TN 41 km (26 mi) ESE of here earthquakes near Campbell 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. 2.4 7 km N of Dandridge, Tennessee
  2. 2.3 7 km N of Dandridge, Tennessee
  3. 2.2 6 km N of Dandridge, Tennessee
  4. 2.4 7 km SE of Knoxville, Tennessee
  5. 2.2 5 km SE of Knoxville, Tennessee
  6. 2.0 3 km W of Knoxville, Tennessee
  7. 1.8 6 km NNW of Mascot, Tennessee
  8. 2.1 6 km NNW of Mascot, Tennessee
  9. 2.2 5 km W of Seymour, Tennessee
  10. 2.8 8 km NW of Fincastle, Tennessee
  11. 2.5 7 km WSW of New Market, Tennessee
  12. 2.1 2 km NNE of Maynardville, Tennessee
  13. 2.3 0 km SW of Knoxville, Tennessee
  14. 2.3 7 km W of New Market, Tennessee
  15. 2.4 4 km ESE of Rutledge, 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.