QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

4 km SSE of Lakesite, Tennessee

· 20 km deep · released about 67 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hamilton County 9 kmBradley County 22 kmCatoosa County 30 kmSequatchie County 36 kmWhitfield County 43 kmMarion County 46 kmMeigs County 46 kmBledsoe County 48 kmRhea County 50 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
20 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Hamilton County, 9 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1481 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 67 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 5.8 230,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 160,000× the energy of this one
  3. Around the size people start to feel M 3.0 14× the energy of this one
  4. This earthquake M 2.2 about 67 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 35.1687, -85.1042. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hamilton County, TN 9 km (6 mi) E of here earthquakes near Hamilton County
Bradley County, TN 22 km (14 mi) W of here earthquakes near Bradley County
Catoosa County, GA 30 km (19 mi) N of here earthquakes near Catoosa County
Sequatchie County, TN 36 km (22 mi) SE of here earthquakes near Sequatchie County
Whitfield County, GA 43 km (26 mi) NNW of here earthquakes near Whitfield County
Marion County, TN 46 km (29 mi) E of here earthquakes near Marion County

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

Aftershocks so far

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

  1. 2.1 7 km ESE of Benton, Tennessee
  2. 2.0 8 km E of Benton, Tennessee
  3. 2.0 6 km WSW of Riceville, Tennessee
  4. 2.1 11 km ESE of Trenton, Georgia
  5. 2.1 3 km SW of Varnell, Georgia
  6. 1.9 5 km SSW of Riceville, Tennessee
  7. 1.9 8 km WSW of Etowah, Tennessee
  8. 1.8 6 km WSW of Etowah, Tennessee
  9. 2.2 2 km W of Dayton, Tennessee
  10. 2.1 4 km NNW of Dayton, Tennessee
  11. 1.8 6 km SW of Decatur, Tennessee
  12. 2.0 4 km NNE of Trenton, Georgia
  13. 1.9 9 km NNW of Eton, Georgia
  14. 2.3 7 km SSE of Charleston, Tennessee
  15. 2.2 10 km SSE of Dayton, 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.