QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

5 km W of Seymour, Tennessee

· 12 km deep · released about 62 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Knox County 18 kmBlount County 26 kmSevier County 26 kmJefferson County 35 kmUnion County 44 kmAnderson County 45 kmSwain County 46 kmGrainger County 49 kmLoudon County 51 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 2.2 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Knox County, 18 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1946 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 62 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 240,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 170,000× the energy of this one
  3. Around the size people start to feel M 3.0 15× the energy of this one
  4. This earthquake M 2.2 about 62 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 35.8935, -83.7845. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Knox County, TN 18 km (11 mi) SE of here earthquakes near Knox County
Blount County, TN 26 km (16 mi) NNE of here earthquakes near Blount County
Sevier County, TN 26 km (16 mi) WNW of here earthquakes near Sevier County
Jefferson County, TN 35 km (22 mi) WSW of here earthquakes near Jefferson County
Union County, TN 44 km (27 mi) S of here earthquakes near Union County
Anderson County, TN 45 km (28 mi) SE of here earthquakes near Anderson County

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

Aftershocks so far

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

  1. 2.4 Tennessee-North Carolina border region
  2. 2.5 4 km NNE of Greenback, Tennessee
  3. 2.1 Tennessee
  4. 2.2 1 km S of Garland, Tennessee
  5. 2.1 10 km SSE of Pittman Center, Tennessee
  6. 2.6 Kentucky-Tennessee border region
  7. 2.7 3 km S of Blaine, Tennessee
  8. 2.0 3 km SSW of Maryville, Tennessee
  9. 2.1 5 km S of Greenback, Tennessee
  10. 1.8 6 km NNW of Farragut, Tennessee
  11. 2.5 Tennessee
  12. 1.7 3 km NE of Greenback, Tennessee
  13. 1.8 Tennessee
  14. 1.8 4 km NE of Vonore, Tennessee
  15. 2.2 Kentucky-Tennessee border region

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.