QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

4 km NNW of Chazy, New York

· 5.0 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grand Isle County 19 kmClinton County 27 kmFranklin County 44 kmChittenden County 60 kmLamoille County 74 kmFranklin County 76 kmEssex County 94 kmOrleans County 96 kmWashington County 99 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 1.8 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Grand Isle County, 19 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1015 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 44.9259, -73.4617. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grand Isle County, VT 19 km (12 mi) NW of here earthquakes near Grand Isle County
Clinton County, NY 27 km (17 mi) NE of here earthquakes near Clinton County
Franklin County, VT 44 km (27 mi) W of here earthquakes near Franklin County
Chittenden County, VT 60 km (37 mi) NNW of here earthquakes near Chittenden County
Lamoille County, VT 74 km (46 mi) WNW of here earthquakes near Lamoille County
Franklin County, NY 76 km (48 mi) ENE of here earthquakes near Franklin County

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

Aftershocks so far

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

  1. 1.6 8 km SSW of Saint-Édouard, Canada
  2. 2.0 3 km WNW of Keeseville, New York
  3. 1.9 6 km WNW of Morrisonville, New York
  4. 2.7 4 km NNW of Chazy, New York
  5. 1.5 3 km SE of Lyon Mountain, New York
  6. 2.0 3 km NW of Chazy, New York
  7. 1.7 8 km S of Dannemora, New York
  8. 1.9 8 km ESE of Sainte-Martine, Canada
  9. 2.8 11 km SSW of Sainte-Martine, Canada
  10. 2.5 10 km S of Franklin, Canada
  11. 2.0 13 km SW of Farnham, Canada

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.