Earthquake · reviewed by a seismologist
M 2.7mb_lg
3 km NE of Saint-Léonard, Canada
Yes. A magnitude 2.7 earthquake was recorded 3 km NE of Saint-Léonard, Canada, at 3:22 am EST on 6 March 2020 (08:22 UTC), 9.9 km deep. 253 people have reported feeling it to USGS.
- When
- Magnitude
- M 2.7 (mb_lg)
- Depth
- 9.9 km below the surface
- Felt
- 253 reports · strongest reported intensity IV
- Nearest
- Grand Isle County, 92 km SSE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2005 days ago
Earthquake alerts for Champlain, NY
Get a notification in this browser when USGS records an earthquake near Champlain, NY. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 55 km (34 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
How big was it?
This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
- Magna, Utah 2020 M 5.7 32,000× the energy of this one
- Around the size people start to feel M 3.0 2.8× the energy of this one
- This earthquake M 2.7 about 340 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 45.6077, -73.5634. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Grand Isle County, VT | 92 km (57 mi) | SSE | earthquakes near Grand Isle County |
| Clinton County, NY | 96 km (59 mi) | S | earthquakes near Clinton County |
| Franklin County, VT | 98 km (61 mi) | SSE | earthquakes near Franklin County |
| Franklin County, NY | 127 km (79 mi) | SSW | earthquakes near Franklin County |
| Lamoille County, VT | 133 km (82 mi) | SSE | earthquakes near Lamoille County |
| Orleans County, VT | 134 km (84 mi) | SE | earthquakes near Orleans County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
23 earthquakes have been recorded within 50 km since this one.
- 1.6 8 km SSW of Saint-Édouard, Canada
- 1.7 6 km SSW of Melocheville, Canada
- 1.9 4 km S of Saint-Thomas, Canada
- 2.0 5 km NW of Terrebonne, Canada
- 1.9 8 km ESE of Sainte-Martine, Canada
- 1.8 0 km S of Notre-Dame-de-Grâce, Canada
- 1.8 2 km N of L'Épiphanie, Canada
- 2.7 1 km N of Charlemagne, Canada
- 2.3 southern Quebec, Canada
- 2.2 southern Quebec, Canada
- 1.6 7 km WSW of Sainte-Martine, Canada
- 3.0 southern Quebec, Canada
- 2.1 1 km NW of L'Assomption, Canada
- 2.2 0 km N of L'Épiphanie, Canada
- 2.3 8 km SW of Saint-Ambroise, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.