QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

1 km WNW of Niota, Tennessee

· 5.1 km deep · released about 62 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N McMinn County 12 kmMeigs County 23 kmMonroe County 29 kmLoudon County 33 kmRhea County 37 kmRoane County 37 kmPolk County 46 kmBradley County 49 kmBledsoe County 59 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
5.1 km below the surface
Felt
no reports yet
Nearest
McMinn County, 12 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3008 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 35.5193, -84.5578. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
McMinn County, TN 12 km (7 mi) NNE of here earthquakes near McMinn County
Meigs County, TN 23 km (15 mi) E of here earthquakes near Meigs County
Monroe County, TN 29 km (18 mi) WNW of here earthquakes near Monroe County
Loudon County, TN 33 km (20 mi) SW of here earthquakes near Loudon County
Rhea County, TN 37 km (23 mi) ESE of here earthquakes near Rhea County
Roane County, TN 37 km (23 mi) S of here earthquakes near Roane County

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

Aftershocks so far

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

  1. 1.9 10 km ESE of Vonore, Tennessee
  2. 2.0 2 km WNW of Greenback, Tennessee
  3. 1.8 3 km ENE of Madisonville, Tennessee
  4. 2.2 5 km S of Sweetwater, Tennessee
  5. 1.6 7 km ESE of Vonore, Tennessee
  6. 2.0 7 km SSE of Rockwood, Tennessee
  7. 2.4 7 km E of Tellico Plains, Tennessee
  8. 2.6 3 km ENE of Philadelphia, Tennessee
  9. 2.1 12 km NNE of Decatur, Tennessee
  10. 2.1 3 km NNE of Athens, Tennessee
  11. 2.1 11 km NW of Huntsville, Tennessee
  12. 2.3 10 km SE of Dayton, Tennessee
  13. 2.0 11 km SE of Dayton, Tennessee
  14. 2.2 10 km SE of Dayton, Tennessee
  15. 1.7 2 km NE 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.