QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Marlinton, WV

No earthquake was likely felt in Marlinton in the 24 hours to 9:14 am EST (14:14 UTC). The last one was M 2.3, 28 km (17 mi) SW, at 10:47 pm EDT on 21 July 2024, estimated intensity II (weak) in town; 7 felt reports to USGS. Every earthquake near Marlinton

This page: a magnitude 2.4 earthquake was recorded 16 km (10 mi) east of Marlinton, WV, at 1:57 am EDT on 30 July 2020 (05:57 UTC), 4.4 km deep. 7 people have reported feeling it to USGS.

USGS: 10 km ENE of Huntersville, West Virginia

1:57 am EDT, Jul 30, 2020 · · 4.4 km deep · released about 110 lb of TNT

10 km30 km60 km120 km N Pocahontas County 15 kmBath County 23 kmHighland County 34 kmAlleghany County 49 kmCovington city 49 kmWebster County 55 kmGreenbrier County 58 kmRockbridge County 61 kmRandolph County 62 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
1:57 am EDT on 30 July 2020 ()
Where
16 km (10 mi) east of Marlinton, WV · earthquakes near Marlinton
Magnitude
M 2.4 (md)
Depth
4.4 km below the surface
Felt
7 reports · strongest reported intensity IV
Nearest
Pocahontas County, 15 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2063 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 Marlinton, 16 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.

How big was it?

This earthquake released about 110 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 95,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.5× the energy of this one
  4. This earthquake M 2.4 about 110 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 38.2220, -79.9083. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pocahontas County, WV 15 km (9 mi) NW earthquakes near Pocahontas County
Bath County, VA 23 km (14 mi) SE earthquakes near Bath County
Highland County, VA 34 km (21 mi) ENE earthquakes near Highland County
Alleghany County, VA 49 km (30 mi) S earthquakes near Alleghany County
Covington city, VA 49 km (31 mi) S earthquakes near Covington city
Webster County, WV 55 km (34 mi) WNW earthquakes near Webster 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. 2.3 7 km NNE of Falling Spring, West Virginia
  2. 2.0 3 km S of Huntersville, West Virginia

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.