QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Warm Beach, WA

No earthquake was likely felt in Warm Beach in the 24 hours to 2:31 am PST (10:31 UTC). The last one was M 4.2, 90 km (56 mi) SSW, at 2:05 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 9,329 felt reports to USGS. Every earthquake near Warm Beach

This page: a magnitude 1.7 earthquake was recorded 4 km (2 mi) north-northwest of Warm Beach, WA, at 3:45 pm PST on 16 November 2025 (23:45 UTC), 19 km deep.

USGS: 3 km NNW of Warm Beach, Washington

65 km (40 mi) N of Seattle, WA · 22 km (13 mi) NW of Marysville, WA

3:45 pm PST, Nov 16, 2025 · · 19 km deep · released about 10 lb of TNT

Every earthquake near Warm Beach Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Island County 22 kmSnohomish County 48 kmSkagit County 53 kmSan Juan County 63 kmKitsap County 66 kmWhatcom County 81 kmKing County 89 kmJefferson County 96 kmMason County 112 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
3:45 pm PST on 16 November 2025 ()
Where
4 km (2 mi) north-northwest of Warm Beach, WA · earthquakes near Warm Beach
Magnitude
M 1.7 (ml)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Island County, 22 km WSW
Nearest mapped fault
Utsalady Point fault, 9 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 361 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 Warm Beach, 4 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, Camano, Smokey Point, Tulalip, Bryant, Langley.

How big was it?

This earthquake released about 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× the energy of this one
  4. This earthquake M 1.7 about 10 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 22,000 times the energy of this one.

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

  1. 5.0 4 km ENE of Machias, Washington · 36 km SE of this epicentre
  2. 5.0 6 km W of Conway, Washington · 15 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 48.2043, -122.3782. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Island County, WA 22 km (14 mi) WSW earthquakes near Island County
Snohomish County, WA 48 km (30 mi) ESE earthquakes near Snohomish County
Skagit County, WA 53 km (33 mi) NE earthquakes near Skagit County
San Juan County, WA 63 km (39 mi) WNW earthquakes near San Juan County
Kitsap County, WA 66 km (41 mi) SSW earthquakes near Kitsap County
Whatcom County, WA 81 km (51 mi) NNE earthquakes near Whatcom County

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

Aftershocks so far

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

  1. 2.3 3 km ESE of Oak Harbor, Washington
  2. 2.3 5 km SE of Kingston, Washington
  3. 2.0 2 km E of Oak Harbor, Washington
  4. 2.3 2 km E of Oak Harbor, Washington
  5. 3.8 2 km E of Oak Harbor, Washington
  6. 2.4 2 km ESE of Oak Harbor, Washington
  7. 1.7 2 km ENE of Granite Falls, Washington
  8. 1.5 4 km ESE of Cathcart, Washington
  9. 1.6 4 km S of Port Ludlow, Washington
  10. 1.5 2 km E of Oak Harbor, Washington
  11. 2.0 2 km ESE of Oak Harbor, Washington
  12. 1.6 2 km ESE of Oak Harbor, Washington
  13. 2.4 2 km ESE of Oak Harbor, Washington
  14. 2.9 2 km ESE of Oak Harbor, Washington
  15. 2.1 5 km N of Anacortes, 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.