QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3mb_lg

5 km SW of L'Épiphanie, Canada

· 12 km deep · released about 1.3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grand Isle County 113 kmFranklin County 116 kmClinton County 118 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 3.3 (mb_lg)
Depth
12 km below the surface
Felt
302 reports · strongest reported intensity IV
Nearest
Grand Isle County, 113 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1078 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 302 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,000× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.8× more

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 45.8075, -73.5278. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grand Isle County, VT 113 km (70 mi) N of here earthquakes near Grand Isle County
Franklin County, VT 116 km (72 mi) NNW of here earthquakes near Franklin County
Clinton County, NY 118 km (73 mi) N of here earthquakes near Clinton County
Orleans County, VT 148 km (92 mi) NW of here earthquakes near Orleans County

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

Aftershocks so far

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

  1. 1.9 4 km S of Saint-Thomas, Canada
  2. 2.0 5 km NW of Terrebonne, Canada
  3. 2.6 7 km ENE of Chertsey, Canada
  4. 1.8 0 km S of Notre-Dame-de-Grâce, Canada
  5. 1.8 2 km N of L'Épiphanie, Canada
  6. 2.7 1 km N of Charlemagne, Canada
  7. 2.3 southern Quebec, Canada
  8. 3.0 southern Quebec, Canada
  9. 2.1 1 km NW of L'Assomption, Canada
  10. 2.2 0 km N of L'Épiphanie, Canada
  11. 2.3 8 km SW of Saint-Ambroise, Canada
  12. 2.7 8 km WNW of L'Épiphanie, Canada
  13. 2.1 4 km SSW of L'Épiphanie, 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.