Earthquake · reviewed by a seismologist
M 1.7ml
Earthquake near Snoqualmie, WA
No earthquake was likely felt in Snoqualmie in the 24 hours to 3:09 am PST (11:09 UTC). The last one was M 2.6, 12 km (8 mi) S, at 6:09 pm PDT on 14 October 2026, estimated intensity II (weak) in town; 46 felt reports to USGS. Every earthquake near Snoqualmie
This page: a magnitude 1.7 earthquake was recorded 10 km (6 mi) north-northeast of Snoqualmie, WA, at 8:17 am PST on 1 March 2026 (16:17 UTC), 13 km deep.
USGS: 9 km NNE of Snoqualmie, Washington
44 km (27 mi) E of Seattle, WA · 20 km (13 mi) E of Sammamish, WA
- When
- 8:17 am PST on 1 March 2026 ()
- Where
- 10 km (6 mi) north-northeast of Snoqualmie, WA · earthquakes near Snoqualmie
- Magnitude
- M 1.7 (ml)
- Depth
- 13 km below the surface
- Felt
- no reports yet
- Nearest
- King County, 14 km SSW
- Nearest mapped fault
- Rattlesnake Mountain fault, 9 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 253 days ago
Earthquake alerts for Snoqualmie, WA
Get a notification in this browser when USGS records an earthquake near Snoqualmie, WA. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 1 km (1 mi) from the epicentre. In Snoqualmie, 10 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Earthquakes near other towns within 30 km: Fall City, North Bend, Carnation, Tanner, Lake Marcel-Stillwater, Riverbend.
How big was it?
This earthquake released about 11 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 1,400,000× the energy of this one
- Magna, Utah 2020 M 5.7 970,000× the energy of this one
- Around the size people start to feel M 3.0 86× the energy of this one
- This earthquake M 1.7 about 11 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.
For this area
The largest earthquake within 50 km since 2016 was M 4.6 on 2019-07-12 — about 20,000 times the energy of this one.
Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:
- 5.4 8 km NNE of Lake Marcel-Stillwater, Washington · 19 km NNW of this epicentre
- 5.2 9 km NE of Lake Marcel-Stillwater, Washington · 17 km NNW of this epicentre
- 5.0 4 km ENE of Machias, Washington · 47 km NNW of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 47.6040, -121.7655. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| King County, WA | 14 km (8 mi) | SSW | earthquakes near King County |
| Snohomish County, WA | 50 km (31 mi) | N | earthquakes near Snohomish County |
| Kitsap County, WA | 66 km (41 mi) | W | earthquakes near Kitsap County |
| Pierce County, WA | 68 km (42 mi) | SSW | earthquakes near Pierce County |
| Chelan County, WA | 90 km (56 mi) | ENE | earthquakes near Chelan County |
| Island County, WA | 91 km (57 mi) | NW | earthquakes near Island County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
57 earthquakes have been recorded within 50 km since this one.
- 1.7 0 km NE of May Creek, Washington
- 1.0 1 km NNW of Maple Valley, Washington
- 1.7 12 km ESE of Enumclaw, Washington
- 1.2 10 km E of Carnation, Washington
- 1.2 13 km SE of Verlot, Washington
- 0.8 4 km SSW of Lake Morton-Berrydale, Washington
- 1.1 3 km NNW of Fall City, Washington
- 1.2 4 km ENE of Mirrormont, Washington
- 1.6 0 km NE of Wilderness Rim, Washington
- 1.2 1 km NW of Lake Marcel-Stillwater, Washington
- 1.7 0 km W of Lake Stickney, 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
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.