QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

18 km N of Ducktown, Tennessee

· 14 km deep · released about 100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Polk County 18 kmMonroe County 30 kmCherokee County 30 kmMcMinn County 33 kmFannin County 38 kmBradley County 43 kmMeigs County 52 kmGraham County 53 kmUnion 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 2.4 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Polk County, 18 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 59 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 100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 100,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.1× the energy of this one
  4. This earthquake M 2.4 about 100 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 35.2023, -84.3850. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Polk County, TN 18 km (11 mi) NE of here earthquakes near Polk County
Monroe County, TN 30 km (19 mi) SSW of here earthquakes near Monroe County
Cherokee County, NC 30 km (19 mi) WNW of here earthquakes near Cherokee County
McMinn County, TN 33 km (20 mi) SE of here earthquakes near McMinn County
Fannin County, GA 38 km (24 mi) N of here earthquakes near Fannin County
Bradley County, TN 43 km (27 mi) E of here earthquakes near Bradley County

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

Aftershocks so far

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

  1. 1.7 1 km ENE of Sweetwater, Tennessee
  2. 1.6 8 km E of Englewood, Tennessee
  3. 1.8 8 km E of Englewood, Tennessee
  4. 2.0 8 km SSE of Etowah, Tennessee
  5. 2.3 17 km SSW 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.