QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5mb_lg

6 km SE of Lowville, New York

· 2.2 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Lewis County 4 kmHerkimer County 52 kmOneida County 56 kmJefferson County 56 kmOswego County 70 kmHamilton County 76 kmSt. Lawrence County 87 kmMadison County 95 kmOnondaga County 103 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.5 (mb_lg)
Depth
2.2 km below the surface
Felt
4 reports · strongest reported intensity IV
Nearest
Lewis County, 4 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 78 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 43.7481, -75.4381. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lewis County, NY 4 km (2 mi) S of here earthquakes near Lewis County
Herkimer County, NY 52 km (32 mi) WNW of here earthquakes near Herkimer County
Oneida County, NY 56 km (35 mi) N of here earthquakes near Oneida County
Jefferson County, NY 56 km (35 mi) ESE of here earthquakes near Jefferson County
Oswego County, NY 70 km (43 mi) ENE of here earthquakes near Oswego County
Hamilton County, NY 76 km (47 mi) W of here earthquakes near Hamilton County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.