QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

7 km NE of Rockford, Tennessee

· 16 km deep · released about 29 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Knox County 14 kmBlount County 21 kmSevier County 34 kmAnderson County 39 kmLoudon County 42 kmJefferson County 44 kmUnion County 45 kmSwain County 51 kmGrainger County 56 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
16 km below the surface
Felt
no reports yet
Nearest
Knox County, 14 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2353 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 29 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 5.8 520,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 370,000× the energy of this one
  3. Around the size people start to feel M 3.0 33× the energy of this one
  4. This earthquake M 2.0 about 29 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 35.8775, -83.8832. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Knox County, TN 14 km (9 mi) SSE of here earthquakes near Knox County
Blount County, TN 21 km (13 mi) N of here earthquakes near Blount County
Sevier County, TN 34 km (21 mi) WNW of here earthquakes near Sevier County
Anderson County, TN 39 km (24 mi) SE of here earthquakes near Anderson County
Loudon County, TN 42 km (26 mi) ENE of here earthquakes near Loudon County
Jefferson County, TN 44 km (27 mi) WSW of here earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 2.5 Tennessee-North Carolina border region
  2. 2.7 19 km NNW of Lake Santeetlah, North Carolina
  3. 2.4 7 km N of Dandridge, Tennessee
  4. 2.3 7 km N of Dandridge, Tennessee
  5. 2.2 6 km N of Dandridge, Tennessee
  6. 1.9 6 km E of Friendsville, Tennessee
  7. 1.5 14 km SE of Vonore, Tennessee
  8. 2.4 7 km SE of Knoxville, Tennessee
  9. 2.0 3 km SSW of Tellico Village, Tennessee
  10. 2.1 11 km S of Oak Ridge, Tennessee
  11. 1.9 7 km WSW of Maryville, Tennessee
  12. 2.2 5 km SE of Knoxville, Tennessee
  13. 2.0 3 km W of Knoxville, Tennessee
  14. 1.8 6 km NNW of Mascot, Tennessee
  15. 2.1 6 km NNW of Mascot, 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.