QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

9 km S of Oak Ridge, Tennessee

· 15 km deep · released about 58 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loudon County 22 kmAnderson County 23 kmRoane County 23 kmKnox County 32 kmMorgan County 39 kmBlount County 42 kmMonroe County 54 kmCampbell County 54 kmUnion County 57 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
15 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Loudon County, 22 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 45 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 58 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 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 35.9283, -84.2883. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loudon County, TN 22 km (13 mi) N of here earthquakes near Loudon County
Anderson County, TN 23 km (14 mi) SSW of here earthquakes near Anderson County
Roane County, TN 23 km (14 mi) ENE of here earthquakes near Roane County
Knox County, TN 32 km (20 mi) WSW of here earthquakes near Knox County
Morgan County, TN 39 km (24 mi) SE of here earthquakes near Morgan County
Blount County, TN 42 km (26 mi) NW of here earthquakes near Blount County

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

Aftershocks so far

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

  1. 2.1 5 km NNE of Greenback, Tennessee
  2. 2.0 1 km S of Tellico Village, Tennessee
  3. 2.1 1 km S of Tellico Village, Tennessee
  4. 1.7 1 km ENE of Sweetwater, Tennessee
  5. 2.0 3 km SW of Tellico Village, 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.