QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

4 km NE of Bessemer, Pennsylvania

· 3.0 km deep · released about 46 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lawrence County 10 kmMahoning County 27 kmBeaver County 36 kmMercer County 37 kmColumbiana County 38 kmTrumbull County 43 kmButler County 46 kmHancock County 55 kmPortage County 65 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 2.1 (ml)
Depth
3.0 km below the surface
Felt
no reports yet
Nearest
Lawrence County, 10 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3775 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 46 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 41.0032, -80.4505. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lawrence County, PA 10 km (6 mi) W of here earthquakes near Lawrence County
Mahoning County, OH 27 km (17 mi) E of here earthquakes near Mahoning County
Beaver County, PA 36 km (23 mi) NNW of here earthquakes near Beaver County
Mercer County, PA 37 km (23 mi) SSW of here earthquakes near Mercer County
Columbiana County, OH 38 km (24 mi) NE of here earthquakes near Columbiana County
Trumbull County, OH 43 km (27 mi) SE of here earthquakes near Trumbull 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. 1.7 5 km ENE of Orangeville, Ohio
  2. 1.8 5 km NNE of Columbiana, Ohio
  3. 1.9 3 km NE of Bessemer, Pennsylvania

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.