Earthquake · reviewed by a seismologist
M 2.1ml
4 km SW of Wilderness Rim, Washington
- When
- Magnitude
- M 2.1 (ml)
- Depth
- 21 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- King County, 8 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 11 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.
How big was it?
This earthquake released about 47 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 320,000× the energy of this one
- Magna, Utah 2020 M 5.7 230,000× the energy of this one
- Around the size people start to feel M 3.0 20× the energy of this one
- This earthquake M 2.1 about 47 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 47.4172, -121.8057. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| King County, WA | 8 km (5 mi) | SSE of here | earthquakes near King County |
| Pierce County, WA | 48 km (30 mi) | NNE of here | earthquakes near Pierce County |
| Kitsap County, WA | 68 km (42 mi) | ESE of here | earthquakes near Kitsap County |
| Snohomish County, WA | 71 km (44 mi) | S of here | earthquakes near Snohomish County |
| Kittitas County, WA | 91 km (57 mi) | WNW of here | earthquakes near Kittitas County |
| Thurston County, WA | 94 km (58 mi) | NE of here | earthquakes near Thurston County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
8 earthquakes have been recorded within 50 km since this one.
- 1.2 1 km NW of Lake Marcel-Stillwater, Washington
- 2.1 10 km ENE of Fall City, Washington
- 1.0 5 km WSW of Wilderness Rim, Washington
- 2.4 5 km SW of Wilderness Rim, Washington
- 1.1 2 km NW of Lake Marcel-Stillwater, Washington
- 0.8 4 km E of Carnation, Washington
- 2.0 3 km ESE of East Renton Highlands, Washington
- 0.5 2 km S of Union Hill-Novelty Hill, Washington
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.