QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

2 km WNW of Greenback, Tennessee

· 12 km deep · released about 26 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loudon County 13 kmBlount County 25 kmMonroe County 25 kmRoane County 35 kmKnox County 42 kmMcMinn County 47 kmGraham County 49 kmAnderson County 49 kmMeigs County 59 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 2.0 (md)
Depth
12 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Loudon County, 13 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2644 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 26 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 580,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 410,000× the energy of this one
  3. Around the size people start to feel M 3.0 36× the energy of this one
  4. This earthquake M 2.0 about 26 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 35.6728, -84.1953. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loudon County, TN 13 km (8 mi) ESE of here earthquakes near Loudon County
Blount County, TN 25 km (15 mi) W of here earthquakes near Blount County
Monroe County, TN 25 km (16 mi) N of here earthquakes near Monroe County
Roane County, TN 35 km (22 mi) ESE of here earthquakes near Roane County
Knox County, TN 42 km (26 mi) SSW of here earthquakes near Knox County
McMinn County, TN 47 km (29 mi) NE of here earthquakes near McMinn 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. 2.5 7 km SE of Maryville, Tennessee
  2. 2.0 3 km SSW of Loudon, Tennessee
  3. 2.1 6 km S of Sweetwater, Tennessee
  4. 2.0 8 km SE of Tellico Plains, Tennessee
  5. 1.9 Tennessee
  6. 1.5 4 km WSW of Tellico Village, Tennessee
  7. 2.0 11 km SE of Vonore, Tennessee
  8. 1.9 1 km W of Etowah, Tennessee
  9. 1.9 3 km NNE of Madisonville, Tennessee
  10. 1.9 3 km ESE of Loudon, Tennessee
  11. 2.0 5 km NNE of Tellico Plains, Tennessee
  12. 1.8 3 km SW of Sweetwater, Tennessee
  13. 2.4 4 km WSW of Tellico Village, TN
  14. 2.0 7 km NE of Rockford, Tennessee
  15. 2.3 4 km N of Sweetwater, 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 4,600 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.