QuakeIndex

Earthquake · reviewed by a seismologist

M 0.2ml

Earthquake near Seattle, WA

Yes. A magnitude 0.2 earthquake was recorded 42 km (26 mi) NW of Seattle, WA, at 5:37 am PDT on 9 October 2026 (12:37 UTC), 21 km deep.

This was on 9 October 2026. The latest near Seattle: M 4.2 on 29 September 2026.

USGS: 6 km E of Quilcene, Washington

40 km (25 mi) NW of Seattle, WA · 34 km (21 mi) WNW of Shoreline, WA

5:37 am PDT, Oct 9, 2026 · · 21 km deep · released about 0.058 lb of TNT

10 km30 km60 km120 km N Kitsap County 23 kmIsland County 38 kmJefferson County 55 kmMason County 60 kmSan Juan County 80 kmSnohomish County 80 kmKing County 80 kmClallam County 88 kmPierce County 98 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
5:37 am PDT on 9 October 2026 ()
Where
42 km (26 mi) NW of Seattle, WA · earthquakes near Seattle
Magnitude
M 0.2 (ml)
Depth
21 km below the surface
Felt
no reports yet
Nearest
Kitsap County, 23 km SSE
Nearest mapped fault
Seattle fault, 23 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 4 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. 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: Lofall, Bangor Trident Base, Port Ludlow, Poulsbo, Hansville, Suquamish.

How big was it?

This earthquake released about 0.058 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 1.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 260,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 16,000× the energy of this one
  4. This earthquake M 0.2 about 0.058 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 4.3 on 2023-10-09 — about 1,500,000 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 6.1 Puget Sound region, Washington · 47 km S of this epicentre
  2. 5.3 Eastern Olympic Peninsula, Washington · 16 km W 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 47.8238, -122.7843. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kitsap County, WA 23 km (14 mi) SSE earthquakes near Kitsap County
Island County, WA 38 km (24 mi) NNE earthquakes near Island County
Jefferson County, WA 55 km (34 mi) W earthquakes near Jefferson County
Mason County, WA 60 km (37 mi) SSW earthquakes near Mason County
San Juan County, WA 80 km (49 mi) NNW earthquakes near San Juan County
Snohomish County, WA 80 km (50 mi) ENE earthquakes near Snohomish County

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

Aftershocks so far

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

  1. 1.1 4 km WSW of Chico, Washington
  2. 0.8 2 km W of Erlands Point-Kitsap Lake, Washington
  3. 0.7 3 km W of Erlands Point-Kitsap Lake, Washington
  4. 1.3 7 km ESE of Bainbridge Island, 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.