QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

6 km SE of Englewood, Tennessee

· 9.0 km deep · released about 79 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N McMinn County 18 kmMonroe County 18 kmPolk County 32 kmMeigs County 38 kmLoudon County 41 kmCherokee County 43 kmBradley County 46 kmRoane County 52 kmRhea County 53 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 2.3 (md)
Depth
9.0 km below the surface
Felt
12 reports · strongest reported intensity IV
Nearest
McMinn County, 18 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1854 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 12 people have reported feeling it to USGS.

How big was it?

This earthquake released about 79 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 190,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 79 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 35.3827, -84.4327. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
McMinn County, TN 18 km (11 mi) ESE of here earthquakes near McMinn County
Monroe County, TN 18 km (11 mi) WSW of here earthquakes near Monroe County
Polk County, TN 32 km (20 mi) NNE of here earthquakes near Polk County
Meigs County, TN 38 km (23 mi) ESE of here earthquakes near Meigs County
Loudon County, TN 41 km (25 mi) SSW of here earthquakes near Loudon County
Cherokee County, NC 43 km (27 mi) NW of here earthquakes near Cherokee County

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

Aftershocks so far

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

  1. 1.9 Tennessee
  2. 1.6 1 km W of Madisonville, Tennessee
  3. 1.7 5 km ENE of Sweetwater, Tennessee
  4. 1.5 15 km ENE of Tellico Plains, Tennessee
  5. 1.8 6 km S of Friendsville, Tennessee
  6. 1.6 11 km WNW of Sweetwater, Tennessee
  7. 2.1 7 km NNE of Benton, Tennessee
  8. 1.9 1 km NW of Niota, Tennessee
  9. 2.0 3 km SE of Tellico Village, Tennessee
  10. 1.9 11 km SSW of Decatur, Tennessee
  11. 1.6 7 km WSW of Tellico Village, Tennessee
  12. 2.1 11 km SSW of Benton, Tennessee
  13. 2.3 5 km NE of Greenback, Tennessee
  14. 2.2 11 km SSW of Benton, Tennessee
  15. 2.2 7 km SE of Dayton, 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 1,500 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.