QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

12 km NW of Sweetwater, Tennessee

· 22 km deep · released about 350 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Roane County 19 kmLoudon County 23 kmMcMinn County 29 kmMeigs County 29 kmRhea County 36 kmMonroe County 38 kmCumberland County 49 kmMorgan County 52 kmBlount County 58 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 2.7 (md)
Depth
22 km below the surface
Felt
13 reports · strongest reported intensity IV
Nearest
Roane County, 19 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2772 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 13 people have reported feeling it to USGS.

How big was it?

This earthquake released about 350 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 43,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 31,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.7× the energy of this one
  4. This earthquake M 2.7 about 350 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 35.6795, -84.5640. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Roane County, TN 19 km (12 mi) S of here earthquakes near Roane County
Loudon County, TN 23 km (15 mi) WSW of here earthquakes near Loudon County
McMinn County, TN 29 km (18 mi) N of here earthquakes near McMinn County
Meigs County, TN 29 km (18 mi) NE of here earthquakes near Meigs County
Rhea County, TN 36 km (22 mi) ENE of here earthquakes near Rhea County
Monroe County, TN 38 km (24 mi) NW of here earthquakes near Monroe County

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

Aftershocks so far

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

  1. 1.7 10 km SSE of Vonore, Tennessee
  2. 1.6 8 km SSE of Vonore, Tennessee
  3. 1.7 6 km WSW of Tellico Village, Tennessee
  4. 1.7 11 km WNW of Loudon, Tennessee
  5. 2.2 3 km SSW of Garland, Tennessee
  6. 2.1 4 km NW of Tellico Plains, Tennessee
  7. 1.7 5 km NW of Tellico Plains, Tennessee
  8. 1.9 6 km SW of Tellico Village, Tennessee
  9. 2.0 10 km WSW of Tellico Plains, Tennessee
  10. 2.0 12 km NNE of Decatur, Tennessee
  11. 2.1 9 km ESE of Vonore, Tennessee
  12. 2.0 11 km ESE of Vonore, Tennessee
  13. 1.7 4 km WNW of Madisonville, Tennessee
  14. 1.7 11 km ESE of Madisonville, Tennessee
  15. 2.4 2 km WSW of Sweetwater, 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.