QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

7 km SE of Maryville, Tennessee

· 18 km deep · released about 150 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Blount County 2 kmKnox County 32 kmLoudon County 36 kmSevier County 37 kmGraham County 41 kmMonroe County 42 kmSwain County 44 kmAnderson County 52 kmRoane County 57 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
18 km below the surface
Felt
11 reports · strongest reported intensity III
Nearest
Blount County, 2 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2136 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 11 people have reported feeling it to USGS.

How big was it?

This earthquake released about 150 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 99,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 70,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.2× the energy of this one
  4. This earthquake M 2.5 about 150 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 35.7063, -83.9168. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Blount County, TN 2 km (1 mi) NNE of here earthquakes near Blount County
Knox County, TN 32 km (20 mi) S of here earthquakes near Knox County
Loudon County, TN 36 km (22 mi) E of here earthquakes near Loudon County
Sevier County, TN 37 km (23 mi) WSW of here earthquakes near Sevier County
Graham County, NC 41 km (25 mi) N of here earthquakes near Graham County
Monroe County, TN 42 km (26 mi) NE of here earthquakes near Monroe County

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

Aftershocks so far

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

  1. 2.1 2 km NW of Wildwood, Tennessee
  2. 2.1 1 km SW of Tellico Village, Tennessee
  3. 1.9 6 km NW of Lenoir City, Tennessee
  4. 2.6 9 km ENE of Garland, Tennessee
  5. 1.6 2 km ENE of Loudon, Tennessee
  6. 1.8 6 km NW of Vonore, Tennessee
  7. 1.8 5 km SSW of Tellico Village, Tennessee
  8. 2.5 8 km WSW of New Market, Tennessee
  9. 1.5 12 km ESE of Madisonville, Tennessee
  10. 2.4 7 km NNE of Garland, Tennessee
  11. 1.6 7 km ESE of Vonore, Tennessee
  12. 1.7 6 km E of Townsend, Tennessee
  13. 2.5 Tennessee-North Carolina border region
  14. 2.7 19 km NNW of Lake Santeetlah, North Carolina
  15. 1.9 6 km E of Friendsville, 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.