QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

1 km N of Wanakah, New York

· 5.0 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Erie County 10 kmWyoming County 55 kmNiagara County 57 kmCattaraugus County 61 kmGenesee County 64 kmChautauqua County 66 kmOrleans County 86 kmAllegany County 92 kmLivingston County 92 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 (ml)
Depth
5.0 km below the surface
Felt
190 reports · strongest reported intensity IV
Nearest
Erie County, 10 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1327 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 190 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 42.7616, -78.9020. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Erie County, NY 10 km (6 mi) W of here earthquakes near Erie County
Wyoming County, NY 55 km (34 mi) W of here earthquakes near Wyoming County
Niagara County, NY 57 km (36 mi) S of here earthquakes near Niagara County
Cattaraugus County, NY 61 km (38 mi) NNW of here earthquakes near Cattaraugus County
Genesee County, NY 64 km (40 mi) WSW of here earthquakes near Genesee County
Chautauqua County, NY 66 km (41 mi) NE of here earthquakes near Chautauqua 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. 1.5 1 km SSW of Bowmansville, New York
  2. 3.8 1 km NE of West Seneca, New York

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.