QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Maynardville, TN

USGS: 11 km NE of Maynardville, Tennessee

45 km (28 mi) NNE of Knoxville, TN

4:58 am EDT, May 12, 2017 · · 19 km deep · released about 98 lb of TNT

Every earthquake near Maynardville Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Union County 13 kmGrainger County 18 kmClaiborne County 20 kmJefferson County 39 kmHamblen County 41 kmCampbell County 42 kmKnox County 42 kmBell County 45 kmHancock County 48 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
4:58 am EDT on 12 May 2017 ()
Where
12 km (7 mi) NE of Maynardville, TN · earthquakes near Maynardville
Magnitude
M 2.3 (md)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Union County, 13 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3431 days ago

A magnitude 2.3 earthquake was recorded 12 km (7 mi) NE of Maynardville, TN, at 4:58 am EDT on 12 May 2017 (08:58 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Luttrell, New Tazewell, Condon, Rutledge, Plainview, Blaine.

How big was it?

This earthquake released about 98 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 36.3235, -83.7053. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Union County, TN 13 km (8 mi) WSW earthquakes near Union County
Grainger County, TN 18 km (11 mi) ESE earthquakes near Grainger County
Claiborne County, TN 20 km (13 mi) NNE earthquakes near Claiborne County
Jefferson County, TN 39 km (24 mi) SE earthquakes near Jefferson County
Hamblen County, TN 41 km (26 mi) ESE earthquakes near Hamblen County
Campbell County, TN 42 km (26 mi) WNW earthquakes near Campbell County

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

Aftershocks so far

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

  1. 2.2 5 km W of Seymour, Tennessee
  2. 2.8 8 km NW of Fincastle, Tennessee
  3. 2.5 7 km WSW of New Market, Tennessee
  4. 2.1 2 km NNE of Maynardville, Tennessee
  5. 2.3 0 km SW of Knoxville, Tennessee
  6. 2.3 7 km W of New Market, Tennessee
  7. 2.4 4 km ESE of Rutledge, Tennessee
  8. 2.4 7 km SE of Rutledge, Tennessee
  9. 2.0 Kentucky-Tennessee border region
  10. 2.6 7 km ENE of Seymour, Tennessee
  11. 2.4 8 km ENE of Seymour, Tennessee
  12. 2.1 8 km NNW of New Market, Tennessee
  13. 2.5 11 km WNW of Rutledge, Tennessee
  14. 2.5 5 km ENE of Rutledge, Tennessee
  15. 2.1 7 km NNW of New Market, 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.