Earthquake · reviewed by a seismologist
M 2.7ml
Earthquake near Lake Marcel-Stillwater, WA
No earthquake was likely felt in Lake Marcel-Stillwater in the 24 hours to 5:24 pm PST (01:24 UTC). The last one was M 4.2, 69 km (43 mi) WSW, at 2:05 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 9,329 felt reports to USGS. Every earthquake near Lake Marcel-Stillwater
This page: a magnitude 2.7 earthquake was recorded 4 km (3 mi) east of Lake Marcel-Stillwater, WA, at 2:40 am PST on 13 December 2022 (10:40 UTC), 26 km deep. 16 people have reported feeling it to USGS.
USGS: 4 km E of Lake Marcel-Stillwater, Washington
38 km (23 mi) ENE of Seattle, WA · 17 km (11 mi) NE of Sammamish, WA
- When
- 2:40 am PST on 13 December 2022 ()
- Where
- 4 km (3 mi) east of Lake Marcel-Stillwater, WA · earthquakes near Lake Marcel-Stillwater
- Magnitude
- M 2.7 (ml)
- Depth
- 26 km below the surface
- Felt
- 16 reports · strongest reported intensity III
- Measured shaking
- intensity II (ShakeMap)
- Nearest
- King County, 22 km S
- Nearest mapped fault
- Southern Whidbey Island fault, under 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 1336 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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. In Lake Marcel-Stillwater, 4 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, Ames Lake, Duvall, Union Hill-Novelty Hill, Fall City, City of Sammamish.
How big was it?
This earthquake released about 320 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 48,000× the energy of this one
- Magna, Utah 2020 M 5.7 34,000× the energy of this one
- Around the size people start to feel M 3.0 3× the energy of this one
- This earthquake M 2.7 about 320 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 710 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 · 8 km N of this epicentre
- 5.2 9 km NE of Lake Marcel-Stillwater, Washington · 7 km NNE of this epicentre
- 5.0 4 km ENE of Machias, Washington · 36 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 47.6873, -121.8590. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| King County, WA | 22 km (14 mi) | S | earthquakes near King County |
| Snohomish County, WA | 41 km (26 mi) | N | earthquakes near Snohomish County |
| Kitsap County, WA | 59 km (37 mi) | W | earthquakes near Kitsap County |
| Pierce County, WA | 74 km (46 mi) | SSW | earthquakes near Pierce County |
| Island County, WA | 80 km (50 mi) | NW | earthquakes near Island County |
| Skagit County, WA | 90 km (56 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.
- 2.5 9 km NNE of Snoqualmie, Washington
- 1.8 11 km ENE of Enumclaw, 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
- 2.1 9 km NNE of Snoqualmie, Washington
- 2.0 8 km ENE of Fall City, Washington
- 1.6 8 km ENE of Fall City, Washington
- 3.9 9 km NNE of Snoqualmie, Washington
- 1.6 7 km NE of Fall City, Washington
- 1.6 2 km E of Granite Falls, Washington
- 1.7 3 km NNW of Edmonds, 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.