QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

2 km SSE of Mascot, Tennessee

· 7.4 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Knox County 19 kmJefferson County 27 kmUnion County 29 kmGrainger County 34 kmSevier County 34 kmAnderson County 42 kmBlount County 42 kmHamblen County 47 kmClaiborne 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 2.6 (md)
Depth
7.4 km below the surface
Felt
31 reports · strongest reported intensity III
Nearest
Knox County, 19 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2535 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 31 people have reported feeling it to USGS.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 36.0385, -83.7395. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Knox County, TN 19 km (12 mi) ENE of here earthquakes near Knox County
Jefferson County, TN 27 km (17 mi) W of here earthquakes near Jefferson County
Union County, TN 29 km (18 mi) SSE of here earthquakes near Union County
Grainger County, TN 34 km (21 mi) SW of here earthquakes near Grainger County
Sevier County, TN 34 km (21 mi) NW of here earthquakes near Sevier County
Anderson County, TN 42 km (26 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

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

  1. 2.3 7 km N of Dandridge, Tennessee
  2. 2.2 6 km N of Dandridge, Tennessee
  3. 1.9 6 km E of Friendsville, Tennessee
  4. 2.4 7 km SE of Knoxville, Tennessee
  5. 1.9 7 km WSW of Maryville, Tennessee
  6. 2.2 5 km SE of Knoxville, Tennessee
  7. 2.0 3 km W of Knoxville, Tennessee
  8. 1.8 6 km NNW of Mascot, Tennessee
  9. 2.1 6 km NNW of Mascot, Tennessee
  10. 2.0 2 km WSW of Alcoa, Tennessee
  11. 2.3 3 km SW of Alcoa, Tennessee
  12. 2.2 5 km W of Seymour, Tennessee
  13. 2.6 7 km WSW of Knoxville, Tennessee
  14. 2.0 2 km ESE of Friendsville, Tennessee
  15. 2.2 3 km W 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.