Earthquake · reviewed by a seismologist
M 1.5ml
Earthquake near Lake Marcel-Stillwater, WA
Yes: an earthquake was likely felt in Lake Marcel-Stillwater in the last 24 hours. M 2.0, 3 km (2 mi) SE of Lake Marcel-Stillwater, at 8:48 am PST on 11 November 2026 (16:48 UTC); the estimated shaking in Lake Marcel-Stillwater was intensity II (weak). Every earthquake near Lake Marcel-Stillwater
This page: a magnitude 1.5 earthquake was recorded 3 km (2 mi) east-northeast of Lake Marcel-Stillwater, WA, at 9:26 pm PST on 4 February 2023 (05:26 UTC), 8.1 km deep. 1 person has reported feeling it to USGS.
USGS: 3 km ENE of Lake Marcel-Stillwater, Washington
37 km (23 mi) ENE of Seattle, WA · 17 km (11 mi) NE of Sammamish, WA
- When
- 9:26 pm PST on 4 February 2023 ()
- Where
- 3 km (2 mi) east-northeast of Lake Marcel-Stillwater, WA · earthquakes near Lake Marcel-Stillwater
- Magnitude
- M 1.5 (ml)
- Depth
- 8.1 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- King County, 24 km S
- Nearest mapped fault
- Southern Whidbey Island fault, 1 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 1376 days ago
Earthquake alerts for Lake Marcel-Stillwater, WA
Get a notification in this browser when USGS records an earthquake near Lake Marcel-Stillwater, 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 6 km (4 mi) from the epicentre. In Lake Marcel-Stillwater, 3 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: Carnation, Duvall, Ames Lake, Union Hill-Novelty Hill, Fall City, Cottage Lake.
How big was it?
This earthquake released about 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
- Around the size people start to feel M 3.0 160× the energy of this one
- This earthquake M 1.5 about 5.9 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 38,000 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 · 6 km N of this epicentre
- 5.2 9 km NE of Lake Marcel-Stillwater, Washington · 6 km NE of this epicentre
- 5.0 4 km ENE of Machias, Washington · 34 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 47.7035, -121.8767. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| King County, WA | 24 km (15 mi) | S | earthquakes near King County |
| Snohomish County, WA | 40 km (25 mi) | NNE | earthquakes near Snohomish County |
| Kitsap County, WA | 58 km (36 mi) | W | earthquakes near Kitsap County |
| Pierce County, WA | 75 km (47 mi) | SSW | earthquakes near Pierce County |
| Island County, WA | 78 km (48 mi) | NW | earthquakes near Island County |
| Skagit County, WA | 88 km (55 mi) | N | earthquakes near Skagit County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
58 earthquakes have been recorded within 50 km since this one.
- 1.6 11 km NE of Snoqualmie, Washington
- 2.1 1 km NW of Meadowdale, Washington
- 1.6 Washington
- 2.6 11 km NE of Snoqualmie, Washington
- 1.7 8 km NE of Fall City, Washington
- 2.3 0 km WSW of Bothell West, Washington
- 1.6 2 km E of Granite Falls, Washington
- 1.9 10 km S of Sultan, Washington
- 2.5 9 km NNE of Snoqualmie, Washington
- 1.6 2 km SSE of Ames Lake, Washington
- 2.1 Puget Sound region, Washington
- 1.7 7 km NE of Fall City, Washington
- 1.6 2 km E of Granite Falls, Washington
- 1.7 11 km E of Tanner, Washington
- 2.8 8 km ENE of Fall City, 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.