Earthquake · reviewed by a seismologist
M 2.8mb_lg
11 km SSW of Sainte-Martine, Canada
Yes. A magnitude 2.8 earthquake was recorded 11 km SSW of Sainte-Martine, Canada, at 8:12 am EDT on 29 July 2024 (12:12 UTC), 7.1 km deep. 28 people have reported feeling it to USGS.
- When
- Magnitude
- M 2.8 (mb_lg)
- Depth
- 7.1 km below the surface
- Felt
- 28 reports · strongest reported intensity IV
- Nearest
- Clinton County, 46 km SSE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 763 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 61 km (38 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 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
- Magna, Utah 2020 M 5.7 22,000× the energy of this one
- Around the size people start to feel M 3.0 2× the energy of this one
- This earthquake M 2.8 about 480 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 45.1543, -73.8526. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Clinton County, NY | 46 km (29 mi) | SSE | earthquakes near Clinton County |
| Grand Isle County, VT | 58 km (36 mi) | SE | earthquakes near Grand Isle County |
| Franklin County, NY | 72 km (45 mi) | SSW | earthquakes near Franklin County |
| Franklin County, VT | 81 km (50 mi) | ESE | earthquakes near Franklin County |
| Chittenden County, VT | 99 km (61 mi) | SE | earthquakes near Chittenden County |
| Lamoille County, VT | 114 km (71 mi) | ESE | earthquakes near Lamoille County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
5 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
- 2.7 4 km NNW of Chazy, New York
- 2.0 3 km NW of Chazy, New York
- 1.9 8 km ESE of Sainte-Martine, 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.