QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Port Ludlow, WA

Yes: an earthquake was likely felt in Port Ludlow in the last 24 hours. M 1.8, 5 km (3 mi) SSW of Port Ludlow, at 12:24 pm PST on 12 November 2026 (20:24 UTC); the estimated shaking in Port Ludlow was intensity II (weak). Every earthquake near Port Ludlow

This page: a magnitude 1.5 earthquake was recorded 5 km (3 mi) south of Port Ludlow, WA, at 11:48 am PDT on 6 May 2025 (18:48 UTC), 8.3 km deep. 1 person has reported feeling it to USGS.

USGS: 5 km S of Port Ludlow, Washington

38 km (24 mi) NW of Seattle, WA · 29 km (18 mi) WNW of Shoreline, WA

11:48 am PDT, May 6, 2025 · · 8.3 km deep · released about 5.7 lb of TNT

10 km30 km60 km120 km N Kitsap County 27 kmIsland County 31 kmJefferson County 63 kmMason County 69 kmSnohomish County 72 kmSan Juan County 76 kmKing County 77 kmClallam County 93 kmSkagit County 94 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
11:48 am PDT on 6 May 2025 ()
Where
5 km (3 mi) south of Port Ludlow, WA · earthquakes near Port Ludlow
Magnitude
M 1.5 (ml)
Depth
8.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Kitsap County, 27 km S
Nearest mapped fault
Southern Whidbey Island fault, 16 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 489 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 6 km (4 mi) from the epicentre. In Port Ludlow, 5 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: Lofall, Hansville, Poulsbo, Kingston, Bangor Trident Base, Port Hadlock-Irondale.

How big was it?

This earthquake released about 5.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.7 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 15,000 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.3 Eastern Olympic Peninsula, Washington · 24 km WSW 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 47.8770, -122.6935. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kitsap County, WA 27 km (17 mi) S earthquakes near Kitsap County
Island County, WA 31 km (19 mi) N earthquakes near Island County
Jefferson County, WA 63 km (39 mi) W earthquakes near Jefferson County
Mason County, WA 69 km (43 mi) SSW earthquakes near Mason County
Snohomish County, WA 72 km (45 mi) ENE earthquakes near Snohomish County
San Juan County, WA 76 km (47 mi) NNW earthquakes near San Juan 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. 1.8 5 km WSW of Bethel, Washington
  2. 1.7 8 km NNW of Freeland, Washington
  3. 1.7 2 km E of Yarrow Point, Washington
  4. 1.9 14 km WNW of Belfair, Washington
  5. 1.9 6 km SSE of Port Ludlow, Washington
  6. 1.5 6 km SSE of Port Ludlow, Washington
  7. 1.6 5 km SSE of Port Ludlow, Washington
  8. 1.5 3 km SSE of Port Ludlow, Washington
  9. 2.8 5 km W of Gorst, Washington
  10. 1.8 4 km WNW of Gorst, Washington
  11. 1.8 2 km W of Bainbridge Island, Washington
  12. 1.7 1 km SE of Shoreline, Washington
  13. 1.8 3 km SE of Quilcene, Washington
  14. 1.7 3 km NNW of Warm Beach, Washington
  15. 1.9 4 km SSW of Port Ludlow, 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.