QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

0 km S of Niota, Tennessee

· 12 km deep · released about 26 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N McMinn County 12 kmMeigs County 25 kmMonroe County 28 kmLoudon County 33 kmRoane County 38 kmRhea County 38 kmPolk County 44 kmBradley County 49 kmBlount County 60 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
no reports yet
Nearest
McMinn County, 12 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 939 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 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 35.5083, -84.5450. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
McMinn County, TN 12 km (7 mi) NE of here earthquakes near McMinn County
Meigs County, TN 25 km (15 mi) E of here earthquakes near Meigs County
Monroe County, TN 28 km (17 mi) WNW of here earthquakes near Monroe County
Loudon County, TN 33 km (20 mi) SW of here earthquakes near Loudon County
Roane County, TN 38 km (23 mi) S of here earthquakes near Roane County
Rhea County, TN 38 km (24 mi) ESE of here earthquakes near Rhea 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. 1.9 20 km WNW of Lake Santeetlah, North Carolina
  2. 2.2 20 km WNW of Lake Santeetlah, North Carolina
  3. 2.6 2 km E of Greenback, Tennessee
  4. 1.8 2 km S of Niota, Tennessee
  5. 2.1 6 km NNE of Hopewell, Tennessee
  6. 1.8 13 km ESE of Tellico Plains, Tennessee
  7. 2.1 0 km S of Loudon, Tennessee
  8. 1.9 2 km NE of Niota, Tennessee
  9. 2.0 5 km NE of Tellico Plains, Tennessee
  10. 1.6 6 km NW of Madisonville, Tennessee
  11. 1.6 3 km ENE of Sweetwater, Tennessee
  12. 2.1 12 km E of Benton, Tennessee
  13. 1.6 7 km WSW of Tellico Village, Tennessee
  14. 2.0 6 km SSE of Vonore, Tennessee
  15. 1.7 7 km ESE 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.