QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3mb_lg

Ohio

· 9.8 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shelby County 13 kmAuglaize County 20 kmLogan County 27 kmAllen County 40 kmChampaign County 42 kmMiami County 42 kmHardin County 45 kmMercer County 48 kmDarke County 55 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 (mb_lg)
Depth
9.8 km below the surface
Felt
10 reports · strongest reported intensity IV
Nearest
Shelby County, 13 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2198 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 10 people have reported feeling it to USGS.

How big was it?

This earthquake released about 85 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 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 40.4165, -84.0876. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shelby County, OH 13 km (8 mi) NE of here earthquakes near Shelby County
Auglaize County, OH 20 km (12 mi) SE of here earthquakes near Auglaize County
Logan County, OH 27 km (17 mi) W of here earthquakes near Logan County
Allen County, OH 40 km (25 mi) S of here earthquakes near Allen County
Champaign County, OH 42 km (26 mi) NW of here earthquakes near Champaign County
Miami County, OH 42 km (26 mi) NNE of here earthquakes near Miami County

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

Aftershocks so far

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

  1. 2.9 5 km W of Jackson Center, Ohio
  2. 2.4 3 km NW of Versailles, Ohio
  3. 2.4 3 km SW of Lima, 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.