Washington earthquakes

M2.5 earthquake 6 km SE of Oak Harbor, Washington

A magnitude 2.5 earthquake struck 6 km SE of Oak Harbor, Washington on Sat, Sep 27, 1975, 11:04 PM PDT (06:04 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M3.4 7 km WNW of Anacortes, Washington. This one was a foreshock.

Oak Harbor forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.5 (md), micro
Local time
UTC
1975-09-28 06:04:24 UTC
Depth
17.1 km (10.6 mi), shallow
Epicenter
48.249° N, 122.595° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.3 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
77°
Stations used
11

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 1.98 km NW of Orcas, Washington · 18622 days ago · 16 km deep · 55 km away
  2. 1.65 km SE of Oak Harbor, Washington · 18621 days ago · 17 km deep · 1 km away
  3. 2.112 km SE of Verlot, Washington · 18621 days ago · 5 km deep · 75 km away
  4. 1.83 km S of Orcas, Washington · 18621 days ago · 3 km deep · 44 km away
  5. 2.015 km ESE of Verlot, Washington · 18620 days ago · 19 km deep · 79 km away
  6. 1.63 km WNW of Victoria, Canada · 18619 days ago · 17 km deep · 64 km away
  7. 3.47 km WNW of Anacortes, Washington · 18617 days ago · 8 km deep · 34 km away
  8. 2.50 km NNE of Erlands Point-Kitsap Lake, Washington · 18614 days ago · 19 km deep · 72 km away
  9. 3.13 km SE of Lake Roesiger, Washington · 18614 days ago · 17 km deep · 61 km away
  10. 2.83 km SSE of Lake Roesiger, Washington · 18612 days ago · 13 km deep · 60 km away
  11. 2.39 km ESE of Alger, Washington · 18608 days ago · 1 km deep · 47 km away
  12. 2.02 km SW of Gold Bar, Washington · 18607 days ago · -1 km deep · 79 km away
  13. 1.76 km NNW of Bangor Trident Base, Washington · 18606 days ago · 13 km deep · 53 km away
  14. 2.513 km W of Ault Field, Washington · 18588 days ago · 51 km deep · 21 km away
  15. 1.53 km NNE of Verlot, Washington · 18588 days ago · 12 km deep · 63 km away
  16. 2.93 km SSE of Lake Roesiger, Washington · 18585 days ago · 17 km deep · 61 km away
  17. 1.62 km SSE of Hansville, Washington · 18578 days ago · 1 km deep · 39 km away
  18. 2.52 km NNE of Riverton, Washington · 18576 days ago · 27 km deep · 86 km away
  19. 2.11 km ENE of Lake Marcel-Stillwater, Washington · 18574 days ago · 6 km deep · 80 km away
  20. 1.52 km SW of Burley, Washington · 18572 days ago · 19 km deep · 94 km away
  21. 2.13 km WNW of Langford, Canada · 18570 days ago · 20 km deep · 74 km away
  22. 1.814 km ESE of Verlot, Washington · 18570 days ago · 8 km deep · 77 km away
  23. 1.72 km WSW of Monroe, Washington · 18569 days ago · -1 km deep · 62 km away
  24. 1.72 km NE of Monroe, Washington · 18568 days ago · 21 km deep · 64 km away
  25. 1.96 km ESE of Maplewood, Washington · 18567 days ago · 16 km deep · 97 km away
  26. 1.94 km SW of Snoqualmie, Washington · 18567 days ago · 15 km deep · 99 km away
  27. 1.71 km NE of Lake Marcel-Stillwater, Washington · 18564 days ago · 26 km deep · 80 km away

Before

  1. 1.74 km ENE of Swede Heaven, Washington · 18623 days ago · -1 km deep · 68 km away
  2. 3.56 km SW of Clinton, Washington · 18625 days ago · 26 km deep · 37 km away
  3. 2.16 km WSW of Lake Cavanaugh, Washington · 18630 days ago · 2 km deep · 37 km away
  4. 1.91 km NW of Mill Creek, Washington · 18633 days ago · 24 km deep · 51 km away
  5. 1.96 km WSW of Lake Cavanaugh, Washington · 18633 days ago · 9 km deep · 37 km away
  6. 2.50 km ENE of Peaceful Valley, Washington · 18634 days ago · 11 km deep · 84 km away
  7. 2.06 km SW of Lake Cavanaugh, Washington · 18635 days ago · 11 km deep · 38 km away
  8. 2.66 km WSW of Lake Cavanaugh, Washington · 18635 days ago · 7 km deep · 37 km away
  9. 1.51 km NNW of Tukwila, Washington · 18635 days ago · 23 km deep · 88 km away
  10. 2.56 km WSW of Lake Cavanaugh, Washington · 18636 days ago · 3 km deep · 37 km away
  11. 1.83 km SSE of La Conner, Washington · 18638 days ago · -1 km deep · 15 km away
  12. 2.03 km WSW of Woodway, Washington · 18640 days ago · 11 km deep · 53 km away
  13. 2.00 km NNE of Bellevue, Washington · 18641 days ago · 16 km deep · 77 km away
  14. 1.92 km WNW of Bryn Mawr-Skyway, Washington · 18641 days ago · 24 km deep · 86 km away
  15. 2.02 km SW of Lake Forest Park, Washington · 18642 days ago · 14 km deep · 60 km away
  16. 2.61 km WNW of Mirrormont, Washington · 18642 days ago · 11 km deep · 97 km away
  17. 2.68 km W of Gorst, Washington · 18645 days ago · 21 km deep · 81 km away
  18. 2.53 km N of Kingston, Washington · 18651 days ago · 23 km deep · 47 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10861893. Read Tue, Sep 22, 2026, 9:41 PM UTC.