QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near Middlesboro, KY

No earthquake was likely felt in Middlesboro in the 24 hours to 5:07 am EST (10:07 UTC). The last one was M 2.6, 11 km (7 mi) SW, at 3:07 pm EST on 4 January 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near Middlesboro

This page: a magnitude 2.5 earthquake was recorded 31 km (19 mi) north of Middlesboro, KY, at 8:29 pm EDT on 6 August 2025 (00:29 UTC), 20 km deep.

USGS: 9 km NE of Flat Lick, Kentucky

8:29 pm EDT, Aug 6, 2025 · · 20 km deep · released about 160 lb of TNT

10 km30 km60 km120 km N Knox County 14 kmBell County 17 kmClay County 31 kmLeslie County 35 kmHarlan County 42 kmWhitley County 42 kmClaiborne County 43 kmLaurel County 45 kmLee County 54 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
8:29 pm EDT on 6 August 2025 ()
Where
31 km (19 mi) north of Middlesboro, KY · earthquakes near Middlesboro
Kentucky today
every earthquake in Kentucky in the last 24 hours
Magnitude
M 2.5 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Knox County, 14 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 382 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 41 km (25 mi) from the epicentre. In Middlesboro, 31 km away, the estimate is intensity II (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, Barbourville.

How big was it?

This earthquake released about 160 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 95,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 68,000× the energy of this one
  3. Around the size people start to feel M 3.0 6× the energy of this one
  4. This earthquake M 2.5 about 160 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 36.8852, -83.6948. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Knox County, KY 14 km (9 mi) W earthquakes near Knox County
Bell County, KY 17 km (11 mi) S earthquakes near Bell County
Clay County, KY 31 km (19 mi) N earthquakes near Clay County
Leslie County, KY 35 km (22 mi) NE earthquakes near Leslie County
Harlan County, KY 42 km (26 mi) E earthquakes near Harlan County
Whitley County, KY 42 km (26 mi) WSW earthquakes near Whitley County

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

Aftershocks so far

2 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

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.