QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

2 km N of Farragut, Tennessee

· 8.1 km deep · released about 180 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Knox County 22 kmLoudon County 24 kmAnderson County 24 kmBlount County 32 kmRoane County 34 kmMorgan County 51 kmUnion County 51 kmMonroe County 51 kmCampbell 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 2.5 (md)
Depth
8.1 km below the surface
Felt
260 reports · strongest reported intensity IV
Nearest
Knox County, 22 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 505 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 260 people have reported feeling it to USGS.

How big was it?

This earthquake released about 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 86,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 61,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.4× the energy of this one
  4. This earthquake M 2.5 about 180 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 35.9038, -84.1550. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Knox County, TN 22 km (14 mi) WSW of here earthquakes near Knox County
Loudon County, TN 24 km (15 mi) NE of here earthquakes near Loudon County
Anderson County, TN 24 km (15 mi) S of here earthquakes near Anderson County
Blount County, TN 32 km (20 mi) NW of here earthquakes near Blount County
Roane County, TN 34 km (21 mi) E of here earthquakes near Roane County
Morgan County, TN 51 km (32 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

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

  1. 1.8 4 km SSW of Tellico Village, Tennessee
  2. 1.9 1 km WNW of Tellico Village, Tennessee
  3. 1.7 7 km SW of Maryville, Tennessee
  4. 2.1 7 km SW of Maryville, Tennessee
  5. 2.3 7 km SW of Maryville, Tennessee
  6. 2.0 0 km WSW of Alcoa, Tennessee
  7. 1.7 2 km SSE of Philadelphia, Tennessee
  8. 1.9 3 km N of Madisonville, Tennessee
  9. 2.0 5 km NW of Madisonville, Tennessee
  10. 1.6 6 km E of Oak Ridge, Tennessee
  11. 1.8 3 km W of Maryville, Tennessee
  12. 2.0 14 km SE of Vonore, Tennessee
  13. 1.6 5 km NNE of Greenback, Tennessee
  14. 2.0 13 km SE of Greenback, Tennessee
  15. 1.6 7 km SSE of Vonore, 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.