explosion · reviewed by a seismologist
M 2.2md
8 km WNW of Dover, Idaho
- When
- Magnitude
- M 2.2 (md)
- Depth
- -0.9 km below the surface
- Felt
- 1 report · strongest reported intensity III
- Nearest
- Bonner County, 9 km NE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 30 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.
USGS catalogues this as explosion, not an earthquake.
How big was it?
This earthquake released about 62 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 240,000× the energy of this one
- Magna, Utah 2020 M 5.7 170,000× the energy of this one
- Around the size people start to feel M 3.0 15× the energy of this one
- This earthquake M 2.2 about 62 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 48.2725, -116.7240. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Bonner County, ID | 9 km (6 mi) | SW of here | earthquakes near Bonner County |
| Pend Oreille County, WA | 48 km (30 mi) | SE of here | earthquakes near Pend Oreille County |
| Boundary County, ID | 58 km (36 mi) | SSW of here | earthquakes near Boundary County |
| Kootenai County, ID | 66 km (41 mi) | N of here | earthquakes near Kootenai County |
| Stevens County, WA | 85 km (53 mi) | E of here | earthquakes near Stevens County |
| Spokane County, WA | 88 km (55 mi) | NE of here | earthquakes near Spokane County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
1 earthquake has 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.