QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

11 km E of Kingston, Tennessee

· 17 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Roane County 14 kmLoudon County 19 kmAnderson County 30 kmMorgan County 35 kmKnox County 42 kmBlount County 48 kmMonroe County 52 kmCumberland County 55 kmMcMinn County 57 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 1.8 (md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Roane County, 14 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1980 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 35.8990, -84.3858. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Roane County, TN 14 km (9 mi) ENE of here earthquakes near Roane County
Loudon County, TN 19 km (12 mi) NNW of here earthquakes near Loudon County
Anderson County, TN 30 km (18 mi) SW of here earthquakes near Anderson County
Morgan County, TN 35 km (22 mi) SE of here earthquakes near Morgan County
Knox County, TN 42 km (26 mi) WSW of here earthquakes near Knox County
Blount County, TN 48 km (30 mi) WNW of here earthquakes near Blount County

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

Aftershocks so far

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

  1. 2.0 Tennessee
  2. 2.5 9 km WSW of Oakdale, Tennessee
  3. 2.1 2 km WNW of Niota, Tennessee
  4. 2.1 5 km S of Greenback, Tennessee
  5. 1.8 6 km NNW of Farragut, Tennessee
  6. 2.5 Tennessee
  7. 1.7 3 km NE of Greenback, Tennessee
  8. 1.8 Tennessee
  9. 1.8 4 km NE of Vonore, Tennessee
  10. 2.2 4 km ENE of Madisonville, Tennessee
  11. 1.8 4 km SW of Sweetwater, Tennessee
  12. 2.0 Tennessee
  13. 2.5 2 km N of Farragut, Tennessee
  14. 1.9 8 km SSE of Vonore, Tennessee
  15. 1.5 6 km NNW of Philadelphia, 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 7,900 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.