QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

3 km NW of South Webster, Ohio

· 14 km deep · released about 82 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Scioto County 21 kmJackson County 23 kmLawrence County 33 kmGreenup County 34 kmPike County 36 kmGallia County 40 kmVinton County 52 kmBoyd County 54 kmRoss County 60 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 2.3 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Scioto County, 21 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2180 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 82 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 82 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 38.8388, -82.7572. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Scioto County, OH 21 km (13 mi) E of here earthquakes near Scioto County
Jackson County, OH 23 km (14 mi) SSW of here earthquakes near Jackson County
Lawrence County, OH 33 km (21 mi) NW of here earthquakes near Lawrence County
Greenup County, KY 34 km (21 mi) NNE of here earthquakes near Greenup County
Pike County, OH 36 km (23 mi) SE of here earthquakes near Pike County
Gallia County, OH 40 km (25 mi) W of here earthquakes near Gallia 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. 2.3 2 km W of Jackson, Ohio
  2. 3.1 2 km NNW of Oak Hill, Ohio
  3. 2.4 3 km SW of Rarden, Ohio
  4. 2.5 13 km SSW of Rio Grande, 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.