Earthquake · reviewed by a seismologist
M 1.9ml
Earthquake near Snoqualmie, WA
No earthquake was likely felt in Snoqualmie in the 24 hours to 3:34 am PST (11:34 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 1.9 earthquake was recorded 11 km (7 mi) northeast of Snoqualmie, WA, at 7:07 pm PDT on 7 September 2024 (02:07 UTC), 13 km deep.
USGS: 11 km NE of Snoqualmie, Washington
46 km (29 mi) E of Seattle, WA · 23 km (14 mi) E of Sammamish, WA
- When
- 7:07 pm PDT on 7 September 2024 ()
- Where
- 11 km (7 mi) northeast of Snoqualmie, WA · earthquakes near Snoqualmie
- Magnitude
- M 1.9 (ml)
- Depth
- 13 km below the surface
- Felt
- no reports yet
- Nearest
- King County, 15 km SSW
- Nearest mapped fault
- Rattlesnake Mountain fault, 11 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 794 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 5 km (3 mi) from the epicentre. In Snoqualmie, 11 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, Riverbend, Lake Marcel-Stillwater.
How big was it?
This earthquake released about 18 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 840,000× the energy of this one
- Magna, Utah 2020 M 5.7 600,000× the energy of this one
- Around the size people start to feel M 3.0 53× the energy of this one
- This earthquake M 1.9 about 18 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 12,000 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 · 20 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 · 48 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 47.6080, -121.7368. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| King County, WA | 15 km (9 mi) | SSW | earthquakes near King County |
| Snohomish County, WA | 50 km (31 mi) | N | earthquakes near Snohomish County |
| Kitsap County, WA | 69 km (43 mi) | W | earthquakes near Kitsap County |
| Pierce County, WA | 69 km (43 mi) | SSW | earthquakes near Pierce County |
| Chelan County, WA | 88 km (55 mi) | ENE | earthquakes near Chelan County |
| Island County, WA | 93 km (58 mi) | NW | earthquakes near Island County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
50 earthquakes have been recorded within 50 km since this one.
- 1.7 7 km NNE of May Creek, Washington
- 1.7 2 km NE of Echo Lake, Washington
- 2.8 4 km N of Echo Lake, Washington
- 1.8 1 km NNW of Maple Valley, Washington
- 1.8 8 km NE of Fall City, Washington
- 2.4 10 km NNE of Snoqualmie, Washington
- 1.7 9 km ENE of Snoqualmie, Washington
- 1.7 13 km W of Greenwater, Washington
- 2.4 2 km N of City of Sammamish, Washington
- 1.6 3 km SSW of Monroe, Washington
- 1.7 0 km NNW of Redmond, Washington
- 1.7 3 km WSW of Wilderness Rim, Washington
- 2.2 7 km ENE of Hobart, Washington
- 1.8 2 km SSE of Woodinville, Washington
- 2.1 7 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.