QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Oak Harbor, WA

No earthquake was likely felt in Oak Harbor in the 24 hours to 10:03 pm PST (06:03 UTC). The last one was M 4.2, 99 km (62 mi) S, at 2:05 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 9,329 felt reports to USGS. Every earthquake near Oak Harbor

This page: a magnitude 1.9 earthquake was recorded 11 km (7 mi) east-northeast of Oak Harbor, WA, at 7:57 pm PST on 26 November 2025 (03:57 UTC), 23 km deep.

USGS: 7 km S of La Conner, Washington

78 km (49 mi) N of Seattle, WA · 37 km (23 mi) NW of Marysville, WA

7:57 pm PST, Nov 26, 2025 · · 23 km deep · released about 24 lb of TNT

10 km30 km60 km120 km N Island County 22 kmSan Juan County 49 kmSkagit County 54 kmSnohomish County 62 kmWhatcom County 76 kmKitsap County 76 kmJefferson County 95 kmKing County 105 kmClallam County 106 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
7:57 pm PST on 26 November 2025 ()
Where
11 km (7 mi) east-northeast of Oak Harbor, WA · earthquakes near Oak Harbor
Magnitude
M 1.9 (ml)
Depth
23 km below the surface
Felt
no reports yet
Nearest
Island County, 22 km SW
Nearest mapped fault
Utsalady Point fault, 6 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 345 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 Oak Harbor, 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: Stanwood, Ault Field, Camano, Mount Vernon, Coupeville, Warm Beach.

How big was it?

This earthquake released about 24 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.

  1. Mineral, Virginia 2011 M 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 4.5 on 2025-03-03 — about 7,200 times the energy of this one.

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

  1. 6.0 San Juan Islands, Washington · 48 km NNW of this epicentre
  2. 5.0 6 km W of Conway, Washington · 5 km ENE 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 48.3178, -122.4993. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Island County, WA 22 km (14 mi) SW earthquakes near Island County
San Juan County, WA 49 km (31 mi) WNW earthquakes near San Juan County
Skagit County, WA 54 km (34 mi) ENE earthquakes near Skagit County
Snohomish County, WA 62 km (38 mi) ESE earthquakes near Snohomish County
Whatcom County, WA 76 km (47 mi) NE earthquakes near Whatcom County
Kitsap County, WA 76 km (47 mi) S earthquakes near Kitsap County

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

Aftershocks so far

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

  1. 1.6 2 km ESE of Oak Harbor, Washington
  2. 1.6 8 km S of Port Hadlock-Irondale, Washington
  3. 1.9 2 km NNE of Lyman, Washington
  4. 1.6 2 km E of Oak Harbor, Washington
  5. 2.1 3 km E of Oak Harbor, Washington
  6. 1.7 3 km E of Oak Harbor, Washington
  7. 1.7 3 km N of Lyman, Washington
  8. 2.2 2 km N of Lyman, Washington
  9. 2.1 3 km ESE of Oak Harbor, Washington
  10. 1.6 5 km N of Anacortes, Washington
  11. 2.1 3 km E of Oak Harbor, Washington
  12. 1.9 4 km E of Port Townsend, Washington
  13. 1.8 2 km ESE of Oak Harbor, Washington
  14. 1.9 3 km E of Oak Harbor, Washington
  15. 2.3 3 km ESE of Oak Harbor, 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.