Earthquake · reviewed by a seismologist
M 2.4ml
45 km WSW of Conner, Montana
- When
- Magnitude
- M 2.4 (ml)
- Depth
- 22 km below the surface
- Felt
- no reports yet
- Nearest
- Ravalli County, 56 km NE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 528 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 100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 140,000× the energy of this one
- Magna, Utah 2020 M 5.7 100,000× the energy of this one
- Around the size people start to feel M 3.0 9.1× the energy of this one
- This earthquake M 2.4 about 100 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 45.7477, -114.6463. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Ravalli County, MT | 56 km (35 mi) | SW of here | earthquakes near Ravalli County |
| Idaho County, ID | 65 km (40 mi) | E of here | earthquakes near Idaho County |
| Lemhi County, ID | 109 km (68 mi) | NNW of here | earthquakes near Lemhi County |
| Granite County, MT | 118 km (74 mi) | SW of here | earthquakes near Granite County |
| Deer Lodge County, MT | 123 km (76 mi) | WSW of here | earthquakes near Deer Lodge County |
| Valley County, ID | 125 km (78 mi) | NE of here | earthquakes near Valley County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
No further earthquakes have been recorded within 50 km since this one.
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.