QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

9 km E of Croghan, New York

· 3.2 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lewis County 18 kmHerkimer County 50 kmJefferson County 63 kmHamilton County 68 kmSt. Lawrence County 69 kmOneida County 73 kmOswego County 89 kmFranklin County 110 kmFulton County 110 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 1.6 (ml)
Depth
3.2 km below the surface
Felt
no reports yet
Nearest
Lewis County, 18 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 268 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 43.8896, -75.2796. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lewis County, NY 18 km (11 mi) NE of here earthquakes near Lewis County
Herkimer County, NY 50 km (31 mi) NW of here earthquakes near Herkimer County
Jefferson County, NY 63 km (39 mi) E of here earthquakes near Jefferson County
Hamilton County, NY 68 km (42 mi) WNW of here earthquakes near Hamilton County
St. Lawrence County, NY 69 km (43 mi) SSW of here earthquakes near St. Lawrence County
Oneida County, NY 73 km (45 mi) N of here earthquakes near Oneida County

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

Aftershocks so far

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

  1. 2.5 6 km SE of Lowville, New York
  2. 1.8 13 km NE of Lyons Falls, New York
  3. 2.1 11 km NE of Lyons Falls, New York
  4. 1.8 9 km NE of Lyons Falls, 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.