Earthquake · reviewed by a seismologist
M 1.7ml
23 km NW of Granite Falls, Washington
- When
- Magnitude
- M 1.7 (ml)
- Depth
- 9.5 km below the surface
- Felt
- no reports yet
- Nearest
- Chelan County, 28 km SW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 149 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 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
- Magna, Utah 2020 M 5.7 870,000× the energy of this one
- Around the size people start to feel M 3.0 78× the energy of this one
- This earthquake M 1.7 about 12 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 48.0638, -120.4027. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Chelan County, WA | 28 km (17 mi) | NE of here | earthquakes near Chelan County |
| Douglas County, WA | 64 km (40 mi) | NW of here | earthquakes near Douglas County |
| Okanogan County, WA | 73 km (45 mi) | SW of here | earthquakes near Okanogan County |
| Snohomish County, WA | 101 km (63 mi) | E of here | earthquakes near Snohomish County |
| Kittitas County, WA | 106 km (66 mi) | N of here | earthquakes near Kittitas County |
| Skagit County, WA | 115 km (71 mi) | ESE of here | earthquakes near Skagit County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
6 earthquakes have been recorded within 50 km since this one.
- 0.9 5 km ENE of Entiat, Washington
- 2.3 4 km NW of Waterville, Washington
- 1.7 7 km WSW of Chelan, Washington
- 1.6 12 km W of Entiat, Washington
- 1.6 13 km WSW of Winthrop, Washington
- 1.9 10 km SSW of Granite Falls, 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.