QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

Earthquake near Duvall, WA

No earthquake was likely felt in Duvall in the 24 hours to 10:10 am PST (18:10 UTC). The last one was M 4.2, 67 km (42 mi) SW, at 2:05 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 9,329 felt reports to USGS. Every earthquake near Duvall

This page: a magnitude 2.3 earthquake was recorded 3 km (2 mi) west-northwest of Duvall, WA, at 6:12 pm PST on 7 December 2022 (02:12 UTC), 21 km deep. 2 people have reported feeling it to USGS.

USGS: 3 km WNW of Duvall, Washington

29 km (18 mi) ENE of Seattle, WA · 11 km (7 mi) NE of Redmond, WA

6:12 pm PST, Dec 7, 2022 · · 21 km deep · released about 77 lb of TNT

10 km30 km60 km120 km N King County 33 kmSnohomish County 38 kmKitsap County 49 kmIsland County 66 kmPierce County 79 kmSkagit County 83 kmMason County 97 kmChelan County 105 kmThurston County 110 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
6:12 pm PST on 7 December 2022 ()
Where
3 km (2 mi) west-northwest of Duvall, WA · earthquakes near Duvall
Magnitude
M 2.3 (ml)
Depth
21 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
King County, 33 km SSE
Nearest mapped fault
Southern Whidbey Island fault, 2 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 1371 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Duvall, 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: Cottage Lake, Maltby, Union Hill-Novelty Hill, Woodinville, Lake Marcel-Stillwater, Clearview.

How big was it?

This earthquake released about 77 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 77 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 2,900 times the energy of this one.

Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:

  1. 5.4 8 km NNE of Lake Marcel-Stillwater, Washington · 11 km E of this epicentre
  2. 5.2 9 km NE of Lake Marcel-Stillwater, Washington · 14 km E of this epicentre
  3. 5.0 4 km ENE of Machias, Washington · 27 km N of this epicentre
  4. 5.0 3 km WSW of Des Moines, Washington · 49 km SSW 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 47.7583, -122.0232. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
King County, WA 33 km (20 mi) SSE earthquakes near King County
Snohomish County, WA 38 km (24 mi) NNE earthquakes near Snohomish County
Kitsap County, WA 49 km (30 mi) WSW earthquakes near Kitsap County
Island County, WA 66 km (41 mi) NW earthquakes near Island County
Pierce County, WA 79 km (49 mi) S earthquakes near Pierce County
Skagit County, WA 83 km (52 mi) N earthquakes near Skagit County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

59 earthquakes have been recorded within 50 km since this one.

  1. 2.8 8 km ENE of Fall City, Washington
  2. 2.1 9 km NNE of Snoqualmie, Washington
  3. 2.0 8 km ENE of Fall City, Washington
  4. 1.6 8 km ENE of Fall City, Washington
  5. 3.9 9 km NNE of Snoqualmie, Washington
  6. 1.6 7 km NE of Fall City, Washington
  7. 1.6 2 km E of Granite Falls, Washington
  8. 1.7 3 km NNW of Edmonds, Washington
  9. 1.6 4 km NW of Edmonds, Washington
  10. 2.3 0 km E of Esperance, Washington
  11. 1.9 14 km S of May Creek, Washington
  12. 2.7 1 km NW of Maple Valley, Washington
  13. 1.6 1 km WSW of Seattle, Washington
  14. 1.8 1 km SSW of Three Lakes, Washington
  15. 1.9 3 km NNE of White Center, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.