QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

4 km E of Maryville, Tennessee

· 19 km deep · released about 54 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Blount County 7 kmKnox County 27 kmLoudon County 35 kmSevier County 36 kmMonroe County 45 kmGraham County 46 kmSwain County 46 kmAnderson County 47 kmJefferson County 55 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 2.2 (md)
Depth
19 km below the surface
Felt
9 reports · strongest reported intensity IV
Nearest
Blount County, 7 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2369 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 9 people have reported feeling it to USGS.

How big was it?

This earthquake released about 54 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 280,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 54 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 35.7528, -83.9253. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Blount County, TN 7 km (4 mi) N of here earthquakes near Blount County
Knox County, TN 27 km (17 mi) S of here earthquakes near Knox County
Loudon County, TN 35 km (22 mi) E of here earthquakes near Loudon County
Sevier County, TN 36 km (23 mi) W of here earthquakes near Sevier County
Monroe County, TN 45 km (28 mi) NE of here earthquakes near Monroe County
Graham County, NC 46 km (28 mi) N of here earthquakes near Graham County

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

Aftershocks so far

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

  1. 1.8 6 km NNW of Mascot, Tennessee
  2. 2.1 6 km NNW of Mascot, Tennessee
  3. 2.0 6 km S of Friendsville, Tennessee
  4. 2.0 2 km WSW of Alcoa, Tennessee
  5. 2.3 3 km SW of Alcoa, Tennessee
  6. 2.1 6 km E of Kingston, Tennessee
  7. 2.2 5 km W of Seymour, Tennessee
  8. 1.6 5 km E of Sweetwater, Tennessee
  9. 2.6 7 km WSW of Knoxville, Tennessee
  10. 1.5 11 km E of Kingston, Tennessee
  11. 1.8 11 km E of Kingston, Tennessee
  12. 1.9 Tennessee
  13. 2.0 2 km ESE of Friendsville, Tennessee
  14. 1.6 1 km W of Madisonville, Tennessee
  15. 1.7 5 km ENE of Sweetwater, 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.