QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

15 km NNW of Ducktown, Tennessee

· 13 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Polk County 9 kmMcMinn County 32 kmFannin County 35 kmBradley County 36 kmCherokee County 37 kmMonroe County 37 kmMurray County 47 kmMeigs County 50 kmGilmer County 52 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
13 km below the surface
Felt
no reports yet
Nearest
Polk County, 9 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3750 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 170 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 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 35.1610, -84.4653. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Polk County, TN 9 km (6 mi) NE of here earthquakes near Polk County
McMinn County, TN 32 km (20 mi) SSE of here earthquakes near McMinn County
Fannin County, GA 35 km (22 mi) NNW of here earthquakes near Fannin County
Bradley County, TN 36 km (22 mi) E of here earthquakes near Bradley County
Cherokee County, NC 37 km (23 mi) W of here earthquakes near Cherokee County
Monroe County, TN 37 km (23 mi) SSW of here earthquakes near Monroe County

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

Aftershocks so far

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

  1. 1.9 5 km N of Benton, Tennessee
  2. 1.6 6 km SE of Sweetwater, Tennessee
  3. 1.8 Tennessee
  4. 2.1 12 km S of Vonore, Tennessee
  5. 2.7 6 km ESE of Englewood, Tennessee
  6. 2.2 1 km WNW of Niota, Tennessee
  7. 2.6 9 km E of Cohutta, Georgia
  8. 1.5 7 km WSW of Tellico Plains, Tennessee
  9. 1.7 2 km E of Niota, Tennessee
  10. 2.0 12 km SE of Vonore, Tennessee
  11. 1.8 4 km NNE of Calhoun, Tennessee
  12. 1.5 4 km NNE of Etowah, Tennessee
  13. 1.7 7 km W of Madisonville, Tennessee
  14. 2.1 7 km ENE of Decatur, Tennessee
  15. 1.9 4 km NW of Tellico Plains, 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.