QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

6 km SE of Englewood, Tennessee

· 18 km deep · released about 450 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Monroe County 18 kmMcMinn County 18 kmPolk County 32 kmMeigs County 38 kmLoudon County 40 kmCherokee County 43 kmBradley County 47 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 2.8 (md)
Depth
18 km below the surface
Felt
109 reports · strongest reported intensity IV
Nearest
Monroe County, 18 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1710 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 109 people have reported feeling it to USGS.

How big was it?

This earthquake released about 450 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 34,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 24,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.1× the energy of this one
  4. This earthquake M 2.8 about 450 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 35.3850, -84.4297. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Monroe County, TN 18 km (11 mi) WSW of here earthquakes near Monroe County
McMinn County, TN 18 km (11 mi) ESE of here earthquakes near McMinn 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 40 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

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

  1. 1.7 4 km W of Etowah, Tennessee
  2. 2.4 1 km SE of Etowah, Tennessee
  3. 2.5 4 km NNE of Greenback, Tennessee
  4. 1.7 8 km ENE of Wildwood Lake, Tennessee
  5. 2.2 7 km ENE of East Cleveland, Tennessee
  6. 1.9 3 km N of Niota, Tennessee
  7. 1.5 3 km N of Englewood, Tennessee
  8. 1.8 Tennessee
  9. 2.0 3 km ESE of Vonore, Tennessee
  10. 1.8 4 km SSW of Loudon, Tennessee
  11. 1.9 14 km ENE of Ducktown, Tennessee
  12. 2.0 Tennessee
  13. 2.1 2 km WNW of Niota, Tennessee
  14. 2.1 5 km S of Greenback, Tennessee
  15. 2.5 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 270 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.