QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

16 km SE of Vonore, Tennessee

· 12 km deep · released about 40 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Monroe County 15 kmBlount County 27 kmGraham County 29 kmLoudon County 33 kmCherokee County 40 kmMcMinn County 48 kmRoane County 55 kmKnox County 57 kmSwain 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 2.1 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Monroe County, 15 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 614 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 40 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 35.4965, -84.0990. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Monroe County, TN 15 km (9 mi) ENE of here earthquakes near Monroe County
Blount County, TN 27 km (17 mi) SW of here earthquakes near Blount County
Graham County, NC 29 km (18 mi) NW of here earthquakes near Graham County
Loudon County, TN 33 km (20 mi) SE of here earthquakes near Loudon County
Cherokee County, NC 40 km (25 mi) N of here earthquakes near Cherokee County
McMinn County, TN 48 km (30 mi) E of here earthquakes near McMinn County

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

Aftershocks so far

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

  1. 2.5 5 km E of Madisonville, Tennessee
  2. 2.0 5 km NNW of Vonore, Tennessee
  3. 2.2 10 km WNW of Philadelphia, Tennessee
  4. 2.2 13 km SE of Greenback, Tennessee
  5. 2.0 14 km SE of Etowah, Tennessee
  6. 1.9 7 km ENE of Etowah, Tennessee
  7. 1.9 7 km ENE of Etowah, Tennessee
  8. 2.0 21 km SE of Greenback, Tennessee
  9. 1.8 2 km WNW of Maryville, Tennessee
  10. 1.6 5 km WSW of Friendsville, Tennessee
  11. 1.7 5 km NE of Greenback, Tennessee
  12. 1.8 6 km WSW of Etowah, Tennessee
  13. 1.8 5 km SW of Maryville, Tennessee
  14. 2.2 10 km WNW of Philadelphia, Tennessee
  15. 2.0 6 km ENE of Niota, 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

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