QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

Earthquake near Barbourville, KY

No earthquake was likely felt in Barbourville in the 24 hours to 7:28 am EST (12:28 UTC). The last one was M 2.6, 39 km (24 mi) SSE, at 3:07 pm EST on 4 January 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near Barbourville

This page: a magnitude 2.7 earthquake was recorded 4 km (3 mi) east-southeast of Barbourville, KY, at 1:39 am EDT on 30 October 2017 (05:39 UTC), 3.3 km deep. 7 people have reported feeling it to USGS.

USGS: 2 km N of Artemus, Kentucky

1:39 am EDT, Oct 30, 2017 · · 3.3 km deep · released about 390 lb of TNT

10 km30 km60 km120 km N Knox County 4 kmBell County 20 kmWhitley County 29 kmClay County 36 kmLaurel County 38 kmClaiborne County 43 kmLeslie County 48 kmHarlan County 55 kmCampbell County 58 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
1:39 am EDT on 30 October 2017 ()
Where
4 km (3 mi) east-southeast of Barbourville, KY · earthquakes near Barbourville
Kentucky today
every earthquake in Kentucky in the last 24 hours
Magnitude
M 2.7 (md)
Depth
3.3 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Knox County, 4 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3213 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 58 km (36 mi) from the epicentre. In Barbourville, 4 km away, the estimate is intensity III (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Pineville, Corbin, North Corbin, Middlesboro.

How big was it?

This earthquake released about 390 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 39,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 28,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.5× the energy of this one
  4. This earthquake M 2.7 about 390 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 36.8578, -83.8430. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Knox County, KY 4 km (2 mi) NNW earthquakes near Knox County
Bell County, KY 20 km (13 mi) SE earthquakes near Bell County
Whitley County, KY 29 km (18 mi) WSW earthquakes near Whitley County
Clay County, KY 36 km (22 mi) NNE earthquakes near Clay County
Laurel County, KY 38 km (23 mi) NW earthquakes near Laurel County
Claiborne County, TN 43 km (27 mi) SSE earthquakes near Claiborne County

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

Aftershocks so far

18 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. 2.4 5 km ENE of Harrogate, Tennessee
  6. 1.8 12 km W of New Tazewell, Tennessee
  7. 2.3 4 km E of Harrogate, Tennessee
  8. 2.2 12 km SW of Pathfork, Kentucky
  9. 2.2 10 km WSW of Hyden, Kentucky
  10. 2.5 Kentucky-Tennessee border region
  11. 2.8 8 km NW of Fincastle, Tennessee
  12. 2.4 3 km W of Artemus, Kentucky
  13. 2.5 10 km NNW of North Corbin, Kentucky
  14. 2.6 5 km ENE of Pleasant View, Kentucky
  15. 2.2 8 km N 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.