QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

11 km ESE of Madisonville, Tennessee

· 22 km deep · released about 12 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Monroe County 4 kmLoudon County 28 kmMcMinn County 34 kmBlount County 37 kmGraham County 41 kmCherokee County 42 kmRoane County 47 kmPolk County 49 kmMeigs 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 1.7 (md)
Depth
22 km below the surface
Felt
no reports yet
Nearest
Monroe County, 4 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2612 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 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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 35.4845, -84.2482. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Monroe County, TN 4 km (3 mi) N of here earthquakes near Monroe County
Loudon County, TN 28 km (18 mi) SSE of here earthquakes near Loudon County
McMinn County, TN 34 km (21 mi) ENE of here earthquakes near McMinn County
Blount County, TN 37 km (23 mi) SW of here earthquakes near Blount County
Graham County, NC 41 km (25 mi) WNW of here earthquakes near Graham County
Cherokee County, NC 42 km (26 mi) NNW of here earthquakes near Cherokee County

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

Aftershocks so far

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

  1. 1.6 7 km WSW of Tellico Village, Tennessee
  2. 2.3 5 km NE of Greenback, Tennessee
  3. 1.6 3 km ENE of Philadelphia, Tennessee
  4. 2.4 16 km E of Spring City, Tennessee
  5. 2.5 11 km SSW of Maryville, Tennessee
  6. 2.5 7 km SE of Maryville, Tennessee
  7. 2.0 3 km SSW of Loudon, Tennessee
  8. 2.1 6 km S of Sweetwater, Tennessee
  9. 2.0 8 km SE of Tellico Plains, Tennessee
  10. 2.4 7 km N of Benton, Tennessee
  11. 1.9 Tennessee
  12. 1.5 4 km WSW of Tellico Village, Tennessee
  13. 2.0 11 km SE of Vonore, Tennessee
  14. 1.9 1 km W of Etowah, Tennessee
  15. 1.9 3 km NNE of Madisonville, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2018-12-12 — it released about 9,800 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.