QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

1 km WSW of Plainview, Tennessee

· 24 km deep · released about 22 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Union County 13 kmKnox County 23 kmGrainger County 29 kmAnderson County 35 kmJefferson County 36 kmClaiborne County 39 kmCampbell County 41 kmHamblen County 49 kmSevier County 50 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 1.9 (md)
Depth
24 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Union County, 13 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 897 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 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 36.1732, -83.8068. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Union County, TN 13 km (8 mi) SSE of here earthquakes near Union County
Knox County, TN 23 km (14 mi) NNE of here earthquakes near Knox County
Grainger County, TN 29 km (18 mi) WSW of here earthquakes near Grainger County
Anderson County, TN 35 km (22 mi) E of here earthquakes near Anderson County
Jefferson County, TN 36 km (22 mi) WNW of here earthquakes near Jefferson County
Claiborne County, TN 39 km (24 mi) SSW of here earthquakes near Claiborne County

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

Aftershocks so far

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

  1. 2.3 1 km W of Rutledge, Tennessee
  2. 2.0 4 km WNW of Mascot, Tennessee
  3. 1.9 3 km NW of Mascot, Tennessee
  4. 1.8 0 km SE of Farragut, Tennessee
  5. 1.7 4 km NE of Louisville, Tennessee
  6. 2.0 3 km WSW of Alcoa, Tennessee
  7. 2.2 3 km WSW of Alcoa, Tennessee
  8. 2.3 4 km N of Pigeon Forge, Tennessee
  9. 2.1 2 km S of Blaine, Tennessee
  10. 2.1 7 km SE of Knoxville, Tennessee
  11. 1.9 5 km NNW of Mascot, Tennessee
  12. 1.9 9 km WSW of Mascot, Tennessee
  13. 1.8 2 km WNW of Maryville, Tennessee
  14. 2.6 11 km SW of Middlesboro, Kentucky
  15. 1.8 0 km ESE of Knoxville, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.