QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Middlesboro, KY

USGS: 17 km ESE of Pleasant View, Kentucky

74 km (46 mi) N of Knoxville, TN

6:49 am EDT, Nov 2, 2017 · · 21 km deep · released about 88 lb of TNT

10 km30 km60 km120 km N Whitley County 23 kmBell County 25 kmKnox County 29 kmClaiborne County 29 kmCampbell County 33 kmUnion County 40 kmMcCreary County 51 kmGrainger County 55 kmLaurel 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
6:49 am EDT on 2 November 2017 ()
Where
20 km (12 mi) W of Middlesboro, KY · earthquakes near Middlesboro
Magnitude
M 2.3 (md)
Depth
21 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Whitley County, 23 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3253 days ago

A magnitude 2.3 earthquake was recorded 20 km (12 mi) W of Middlesboro, KY, at 6:49 am EDT on 2 November 2017 (10:49 UTC). 1 person has reported feeling it to USGS. This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Jellico, Speedwell, Williamsburg, Pineville, Harrogate, Barbourville.

How big was it?

This earthquake released about 88 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 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 88 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 36.6380, -83.9353. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Whitley County, KY 23 km (14 mi) NW earthquakes near Whitley County
Bell County, KY 25 km (15 mi) ENE earthquakes near Bell County
Knox County, KY 29 km (18 mi) NNE earthquakes near Knox County
Claiborne County, TN 29 km (18 mi) ESE earthquakes near Claiborne County
Campbell County, TN 33 km (21 mi) SW earthquakes near Campbell County
Union County, TN 40 km (25 mi) SSE earthquakes near Union County

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

Aftershocks so far

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

  1. 2.1 5 km ESE of Pineville, Kentucky
  2. 2.6 11 km SW of Middlesboro, Kentucky
  3. 2.5 9 km NE of Flat Lick, Kentucky
  4. 2.3 10 km S of Jellico, Tennessee
  5. 2.3 16 km N of Maynardville, Tennessee
  6. 2.4 5 km ENE of Harrogate, Tennessee
  7. 1.8 12 km W of New Tazewell, Tennessee
  8. 1.9 8 km WNW of Rutledge, Tennessee
  9. 1.8 4 km S of New Tazewell, Tennessee
  10. 2.8 Kentucky-Tennessee border region
  11. 2.3 4 km E of Harrogate, Tennessee
  12. 2.2 12 km SW of Pathfork, Kentucky
  13. 2.0 6 km WSW of New Tazewell, Tennessee
  14. 2.5 Kentucky-Tennessee border region
  15. 2.8 8 km NW of Fincastle, 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.