Earthquake · reviewed by a seismologist
M 3.1mb_lg
67 km SW of Miramichi, Canada
- When
- Magnitude
- M 3.1 (mb_lg)
- Depth
- 12 km below the surface
- Felt
- 20 reports · strongest reported intensity IV
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 670 days ago
A magnitude 3.1 earthquake was recorded 67 km SW of Miramichi, Canada at 13:39 UTC on 2024-07-03. 20 people have reported feeling it to USGS. This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
How big was it?
This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 250,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
- Magna, Utah 2020 M 5.7 7,900× the energy of this one
- This earthquake M 3.1 about 1,300 lb of TNT
- Around the size people start to feel M 3.0 this one released 1.4× 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 46.5708, -66.0796. Map © OpenStreetMap contributors.
Aftershocks so far
6 earthquakes have been recorded within 50 km since this one.
- 2.2 65 km NNE of Noonan, Canada
- 2.8 54 km NNE of Noonan, Canada
- 2.3 54 km NE of Noonan, Canada
- 1.9 38 km WSW of Miramichi, Canada
- 2.4 55 km NE of Noonan, Canada
- 1.9 42 km ENE of Noonan, 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.