QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

6 km S of Friendsville, Tennessee

· 18 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loudon County 17 kmBlount County 19 kmMonroe County 31 kmKnox County 36 kmRoane County 39 kmAnderson County 46 kmGraham County 48 kmMcMinn County 54 kmSevier 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
18 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Loudon County, 17 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1962 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 14 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 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× the energy of this one
  4. This earthquake M 1.8 about 14 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 35.7060, -84.1282. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loudon County, TN 17 km (11 mi) E of here earthquakes near Loudon County
Blount County, TN 19 km (12 mi) W of here earthquakes near Blount County
Monroe County, TN 31 km (19 mi) NNE of here earthquakes near Monroe County
Knox County, TN 36 km (22 mi) SSW of here earthquakes near Knox County
Roane County, TN 39 km (24 mi) ESE of here earthquakes near Roane County
Anderson County, TN 46 km (29 mi) S of here earthquakes near Anderson County

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

Aftershocks so far

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

  1. 1.5 5 km E of Niota, Tennessee
  2. 2.0 11 km NNE of Tellico Plains, Tennessee
  3. 2.4 0 km NE of Alcoa, Tennessee
  4. 2.0 8 km SSE of Vonore, Tennessee
  5. 2.2 1 km SE of Alcoa, Tennessee
  6. 2.3 1 km NNW of Wildwood, Tennessee
  7. 2.1 2 km NW of Wildwood, Tennessee
  8. 2.1 1 km SW of Tellico Village, Tennessee
  9. 1.9 6 km NW of Lenoir City, Tennessee
  10. 2.6 9 km ENE of Garland, Tennessee
  11. 2.4 6 km WNW of Niota, Tennessee
  12. 1.6 2 km ENE of Loudon, Tennessee
  13. 1.8 6 km NW of Vonore, Tennessee
  14. 1.8 5 km SSW of Tellico Village, Tennessee
  15. 1.5 12 km ESE of Madisonville, 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.