QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

7 km SSE of Rockwood, Tennessee

· 28 km deep · released about 36 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Roane County 13 kmLoudon County 32 kmRhea County 34 kmCumberland County 35 kmMeigs County 35 kmMorgan County 38 kmMcMinn County 42 kmMonroe County 54 kmBledsoe County 54 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
28 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Roane County, 13 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2680 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 36 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 5.8 420,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 300,000× the energy of this one
  3. Around the size people start to feel M 3.0 27× the energy of this one
  4. This earthquake M 2.0 about 36 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 35.8003, -84.6597. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Roane County, TN 13 km (8 mi) WSW of here earthquakes near Roane County
Loudon County, TN 32 km (20 mi) WNW of here earthquakes near Loudon County
Rhea County, TN 34 km (21 mi) NE of here earthquakes near Rhea County
Cumberland County, TN 35 km (22 mi) ESE of here earthquakes near Cumberland County
Meigs County, TN 35 km (22 mi) NNE of here earthquakes near Meigs County
Morgan County, TN 38 km (23 mi) S of here earthquakes near Morgan County

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

Aftershocks so far

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

  1. 1.7 5 km ENE of Sweetwater, Tennessee
  2. 1.8 6 km S of Friendsville, Tennessee
  3. 1.6 11 km WNW of Sweetwater, Tennessee
  4. 1.9 1 km NW of Niota, Tennessee
  5. 2.0 3 km SE of Tellico Village, Tennessee
  6. 1.9 11 km SSW of Decatur, Tennessee
  7. 2.0 3 km SSW of Garland, Tennessee
  8. 1.6 7 km WSW of Tellico Village, Tennessee
  9. 2.3 5 km NE of Greenback, Tennessee
  10. 2.2 7 km SE of Dayton, Tennessee
  11. 1.6 3 km ENE of Philadelphia, Tennessee
  12. 2.4 16 km E of Spring City, Tennessee
  13. 2.0 3 km SSW of Loudon, Tennessee
  14. 2.1 6 km S of Sweetwater, Tennessee
  15. 1.9 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 3,300 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.