2 km N of Artemus, Kentucky

2017-10-30 05:39 UTC · 3.3 km deep · released about 390 lb of TNT

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: 2017-10-30 05:39 UTC
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 3168 days ago · we first saw it 3168 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 7 people have reported feeling it to USGS.

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.

Mineral, Virginia 2011 M 5.8 39,000× the energy of this one
Magna, Utah 2020 M 5.7 28,000× the energy of this one
Around the size people start to feel M 3.0 2.5× the energy of this one
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.

Where

Map loads when it scrolls into view

Epicentre 36.8578, -83.8430. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Knox County, KY	4 km (2 mi)	SSE of here	earthquakes near Knox County
Bell County, KY	20 km (13 mi)	NW of here	earthquakes near Bell County
Whitley County, KY	29 km (18 mi)	ENE of here	earthquakes near Whitley County
Clay County, KY	36 km (22 mi)	SSW of here	earthquakes near Clay County
Laurel County, KY	38 km (23 mi)	SE of here	earthquakes near Laurel County
Claiborne County, TN	43 km (27 mi)	NNW of here	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.

2.1 5 km ESE of Pineville, Kentucky 08:01 UTC
2.6 11 km SW of Middlesboro, Kentucky 20:07 UTC
2.5 9 km NE of Flat Lick, Kentucky 00:29 UTC
2.3 10 km S of Jellico, Tennessee 19:36 UTC
2.4 5 km ENE of Harrogate, Tennessee 05:21 UTC
1.8 12 km W of New Tazewell, Tennessee 09:07 UTC
2.3 4 km E of Harrogate, Tennessee 12:50 UTC
2.2 12 km SW of Pathfork, Kentucky 08:12 UTC
2.2 10 km WSW of Hyden, Kentucky 03:19 UTC
2.5 Kentucky-Tennessee border region 22:38 UTC
2.8 8 km NW of Fincastle, Tennessee 20:29 UTC
2.4 3 km W of Artemus, Kentucky 06:56 UTC
2.5 10 km NNW of North Corbin, Kentucky 05:58 UTC
2.6 5 km ENE of Pleasant View, Kentucky 04:06 UTC
2.2 8 km N of Fincastle, Tennessee 04:34 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 09:58 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

The official USGS event page — the source of record for every value above
Did you feel it? Report it to USGS — reports go to USGS, not to us
ShakeMap for this event, when USGS has produced one

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.