QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

5 km ENE of Lakesite, Tennessee

· 9.3 km deep · released about 17 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hamilton County 14 kmBradley County 21 kmSequatchie County 35 kmCatoosa County 37 kmMeigs County 39 kmBledsoe County 43 kmRhea County 43 kmMcMinn County 47 kmWhitfield 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 1.8 (md)
Depth
9.3 km below the surface
Felt
no reports yet
Nearest
Hamilton County, 14 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1897 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 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 870,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 620,000× the energy of this one
  3. Around the size people start to feel M 3.0 55× the energy of this one
  4. This earthquake M 1.8 about 17 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 35.2258, -85.0725. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hamilton County, TN 14 km (8 mi) ENE of here earthquakes near Hamilton County
Bradley County, TN 21 km (13 mi) WNW of here earthquakes near Bradley County
Sequatchie County, TN 35 km (22 mi) ESE of here earthquakes near Sequatchie County
Catoosa County, GA 37 km (23 mi) N of here earthquakes near Catoosa County
Meigs County, TN 39 km (24 mi) SW of here earthquakes near Meigs County
Bledsoe County, TN 43 km (26 mi) SSE of here earthquakes near Bledsoe County

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

Aftershocks so far

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

  1. 2.1 3 km ENE of Cohutta, Georgia
  2. 2.1 6 km NNE of Hopewell, Tennessee
  3. 2.4 4 km NW of Cohutta, Georgia
  4. 1.9 5 km ESE of Benton, Tennessee
  5. 1.8 4 km SE of Apison, Tennessee
  6. 2.0 1 km WSW of Collegedale, Tennessee
  7. 1.8 2 km SW of Chickamauga, Georgia
  8. 1.6 9 km SW of Spring City, Tennessee
  9. 2.2 2 km S of Ringgold, Georgia
  10. 2.0 4 km SSW of Benton, Tennessee
  11. 2.5 4 km N of Tunnel Hill, Georgia
  12. 2.1 10 km SE of Chickamauga, Georgia
  13. 2.2 9 km NNW of Graysville, Tennessee
  14. 2.2 4 km WSW of Tunnel Hill, Georgia
  15. 2.2 10 km W of Graysville, 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.