QuakeIndex

Earthquake · reviewed by a seismologist

M 1.1ml

Earthquake near Seattle, WA

No earthquake was likely felt in Seattle in the 24 hours to 4:53 pm PST (00:53 UTC). The last one was M 4.2, 37 km (23 mi) SW, at 2:05 pm PDT on 29 September 2026, estimated intensity III (weak) in town; 9,329 felt reports to USGS. Every earthquake near Seattle

This page: a magnitude 1.1 earthquake was recorded 43 km (27 mi) west-northwest of Seattle, WA, at 10:06 pm PDT on 25 October 2026 (05:06 UTC), 4.9 km deep.

USGS: 6 km NNE of Brinnon, Washington

42 km (26 mi) WNW of Seattle, WA · 40 km (25 mi) W of Shoreline, WA

10:06 pm PDT, Oct 25, 2026 · · 4.9 km deep · released about 1.2 lb of TNT

10 km30 km60 km120 km N Kitsap County 20 kmMason County 48 kmJefferson County 49 kmIsland County 50 kmKing County 83 kmClallam County 86 kmSan Juan County 87 kmThurston County 89 kmSnohomish County 90 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
10:06 pm PDT on 25 October 2026 ()
Where
43 km (27 mi) west-northwest of Seattle, WA · earthquakes near Seattle
Magnitude
M 1.1 (ml)
Depth
4.9 km below the surface
Felt
no reports yet
Nearest
Kitsap County, 20 km ESE
Nearest mapped fault
Seattle fault, 14 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 16 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: Seabeck, Bangor Trident Base, Silverdale, Poulsbo, Lofall, Chico.

How big was it?

This earthquake released about 1.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 12,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 8,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 790× the energy of this one
  4. This earthquake M 1.1 about 1.2 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 72,000 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 · 38 km SSE of this epicentre
  2. 5.3 Eastern Olympic Peninsula, Washington · 12 km NW 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 47.7350, -122.8785. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kitsap County, WA 20 km (13 mi) ESE earthquakes near Kitsap County
Mason County, WA 48 km (30 mi) SSW earthquakes near Mason County
Jefferson County, WA 49 km (31 mi) W earthquakes near Jefferson County
Island County, WA 50 km (31 mi) NNE earthquakes near Island County
King County, WA 83 km (51 mi) ESE earthquakes near King County
Clallam County, WA 86 km (54 mi) WNW earthquakes near Clallam County

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

Aftershocks so far

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

  1. 1.8 4 km SSW of Port Ludlow, Washington
  2. 2.2 3 km ESE of Southworth, Washington
  3. 0.5 6 km WNW of Gorst, Washington
  4. -0.3 10 km NW of Belfair, Washington
  5. 1.3 4 km WSW of Erlands Point-Kitsap Lake, Washington
  6. 0.9 0 km WNW of Rocky Point, Washington
  7. 0.9 5 km SE of Quilcene, Washington
  8. 2.2 3 km NW of Skokomish, Washington
  9. 1.1 8 km NNE of Quilcene, Washington
  10. 0.4 7 km SSE of Quilcene, Washington
  11. 1.3 5 km WSW of Port Ludlow, Washington
  12. 1.5 7 km W of Gorst, Washington
  13. 0.4 9 km ENE of Hoodsport, 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.