QuakeIndex

Earthquake · reviewed by a seismologist

M 3.4md

7 km NE of Maynardville, Tennessee

· 17 km deep · released about 1.7 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Union County 9 kmGrainger County 20 kmClaiborne County 24 kmJefferson County 38 kmKnox County 38 kmCampbell County 40 kmHamblen County 43 kmAnderson County 46 kmBell County 48 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 3.4 (md)
Depth
17 km below the surface
Felt
1709 reports · strongest reported intensity V
Nearest
Union County, 9 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2439 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1709 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.7 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 99,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,400× the energy of this one
  3. Magna, Utah 2020 M 5.7 3,100× the energy of this one
  4. This earthquake M 3.4 about 1.7 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 3.6× more

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 36.2955, -83.7357. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Union County, TN 9 km (6 mi) E of here earthquakes near Union County
Grainger County, TN 20 km (13 mi) W of here earthquakes near Grainger County
Claiborne County, TN 24 km (15 mi) SSW of here earthquakes near Claiborne County
Jefferson County, TN 38 km (24 mi) NW of here earthquakes near Jefferson County
Knox County, TN 38 km (24 mi) NNE of here earthquakes near Knox County
Campbell County, TN 40 km (25 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

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

  1. 1.9 1 km WSW of Plainview, Tennessee
  2. 2.2 9 km W of Clinton, Tennessee
  3. 2.4 Kentucky-Tennessee border region
  4. 2.4 Tennessee-North Carolina border region
  5. 2.6 Kentucky-Tennessee border region
  6. 2.7 3 km S of Blaine, Tennessee
  7. 2.8 Kentucky-Tennessee border region
  8. 2.0 3 km E of Rutledge, Tennessee
  9. 2.2 Kentucky-Tennessee border region
  10. 2.3 4 km E of Harrogate, Tennessee
  11. 2.2 12 km SW of Pathfork, Kentucky
  12. 2.5 8 km WSW of New Market, Tennessee
  13. 2.0 6 km WSW of New Tazewell, Tennessee
  14. 2.4 7 km N of Dandridge, Tennessee
  15. 2.3 7 km N of Dandridge, 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.