QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

6 km NNW of Farragut, Tennessee

· 21 km deep · released about 17 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Anderson County 20 kmKnox County 23 kmLoudon County 26 kmRoane County 32 kmBlount County 37 kmMorgan County 46 kmUnion County 49 kmCampbell County 51 kmMonroe County 55 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
21 km below the surface
Felt
no reports yet
Nearest
Anderson County, 20 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1290 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 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× 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 35.9412, -84.1870. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Anderson County, TN 20 km (12 mi) S of here earthquakes near Anderson County
Knox County, TN 23 km (14 mi) WSW of here earthquakes near Knox County
Loudon County, TN 26 km (16 mi) NNE of here earthquakes near Loudon County
Roane County, TN 32 km (20 mi) ENE of here earthquakes near Roane County
Blount County, TN 37 km (23 mi) NW of here earthquakes near Blount County
Morgan County, TN 46 km (29 mi) ESE of here earthquakes near Morgan County

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

Aftershocks so far

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

  1. 1.6 7 km WSW of Tellico Village, Tennessee
  2. 2.1 8 km ENE of Seymour, Tennessee
  3. 2.0 6 km SSE of Vonore, Tennessee
  4. 1.7 7 km ESE of Sweetwater, Tennessee
  5. 1.8 7 km ESE of Sweetwater, Tennessee
  6. 1.8 5 km S of Louisville, Tennessee
  7. 1.8 6 km SSE of Sweetwater, Tennessee
  8. 2.3 6 km SW of Maryville, Tennessee
  9. 1.5 6 km SSW of Louisville, Tennessee
  10. 1.8 2 km NE of Greenback, Tennessee
  11. 1.9 2 km NE of Greenback, Tennessee
  12. 2.3 2 km NE of Greenback, Tennessee
  13. 2.1 6 km E of Friendsville, Tennessee
  14. 1.7 6 km SSE of Friendsville, Tennessee
  15. 1.8 4 km SSW 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.