QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

2 km NW of Athalia, Ohio

· 26 km deep · released about 140 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cabell County 14 kmLawrence County 18 kmGallia County 32 kmBoyd County 36 kmPutnam County 37 kmMason County 37 kmWayne County 44 kmLincoln County 45 kmGreenup County 53 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
Magnitude
M 2.5 (md)
Depth
26 km below the surface
Felt
no reports yet
Nearest
Cabell County, 14 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3448 days ago

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

How big was it?

This earthquake released about 140 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 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 75,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.7× the energy of this one
  4. This earthquake M 2.5 about 140 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

Epicentre 38.5297, -82.3300. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabell County, WV 14 km (9 mi) NNW of here earthquakes near Cabell County
Lawrence County, OH 18 km (11 mi) ESE of here earthquakes near Lawrence County
Gallia County, OH 32 km (20 mi) S of here earthquakes near Gallia County
Boyd County, KY 36 km (22 mi) ENE of here earthquakes near Boyd County
Putnam County, WV 37 km (23 mi) W of here earthquakes near Putnam County
Mason County, WV 37 km (23 mi) SW of here earthquakes near Mason County

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

Aftershocks so far

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

  1. 3.1 2 km NNW of Oak Hill, Ohio
  2. 3.1 1 km NW of Chesapeake, Ohio
  3. 2.5 13 km SSW of Rio Grande, Ohio
  4. 2.5 6 km ESE of Cheshire, Ohio
  5. 2.5 12 km WNW of Athalia, Ohio

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.