Washington earthquakes

M3.4 earthquake 7 km WNW of Anacortes, Washington

A magnitude 3.4 earthquake struck 7 km WNW of Anacortes, Washington on Fri, Oct 3, 1975, 3:31 PM PDT (22:31 UTC), 8 km (5 mi) below the surface.

Anacortes 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
3.4 (md), minor
Local time
UTC
1975-10-03 22:31:25 UTC
Depth
8.3 km (5.2 mi), shallow
Epicenter
48.543° N, 122.699° 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 3.2 km horizontally, 5.0 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
186°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 19 in the 30 days before it.

After

  1. 3.13 km SE of Lake Roesiger, Washington · 18613 days ago · 17 km deep · 88 km away
  2. 2.83 km SSE of Lake Roesiger, Washington · 18612 days ago · 13 km deep · 87 km away
  3. 2.39 km ESE of Alger, Washington · 18607 days ago · 1 km deep · 36 km away
  4. 1.76 km NNW of Bangor Trident Base, Washington · 18606 days ago · 13 km deep · 85 km away
  5. 2.513 km W of Ault Field, Washington · 18588 days ago · 51 km deep · 27 km away
  6. 1.53 km NNE of Verlot, Washington · 18587 days ago · 12 km deep · 83 km away
  7. 2.93 km SSE of Lake Roesiger, Washington · 18584 days ago · 17 km deep · 88 km away
  8. 1.62 km SSE of Hansville, Washington · 18578 days ago · 1 km deep · 72 km away
  9. 2.13 km WNW of Langford, Canada · 18570 days ago · 20 km deep · 63 km away
  10. 1.814 km ESE of Verlot, Washington · 18569 days ago · 8 km deep · 99 km away
  11. 1.72 km WSW of Monroe, Washington · 18568 days ago · -1 km deep · 93 km away
  12. 1.72 km NE of Monroe, Washington · 18567 days ago · 21 km deep · 93 km away
  13. 2.06 km N of Kingston, Washington · 18562 days ago · 10 km deep · 78 km away
  14. 1.88 km NNW of Camano, Washington · 18562 days ago · 27 km deep · 35 km away

Before

  1. 1.63 km WNW of Victoria, Canada · 18619 days ago · 17 km deep · 53 km away
  2. 1.83 km S of Orcas, Washington · 18620 days ago · 3 km deep · 19 km away
  3. 2.112 km SE of Verlot, Washington · 18620 days ago · 5 km deep · 97 km away
  4. 1.65 km SE of Oak Harbor, Washington · 18621 days ago · 17 km deep · 32 km away
  5. 1.98 km NW of Orcas, Washington · 18621 days ago · 16 km deep · 27 km away
  6. 2.56 km SE of Oak Harbor, Washington · 18622 days ago · 17 km deep · 34 km away
  7. 1.74 km ENE of Swede Heaven, Washington · 18622 days ago · -1 km deep · 80 km away
  8. 3.56 km SW of Clinton, Washington · 18624 days ago · 26 km deep · 71 km away
  9. 2.16 km WSW of Lake Cavanaugh, Washington · 18629 days ago · 2 km deep · 52 km away
  10. 1.91 km NW of Mill Creek, Washington · 18632 days ago · 24 km deep · 83 km away
  11. 1.96 km WSW of Lake Cavanaugh, Washington · 18633 days ago · 9 km deep · 52 km away
  12. 2.50 km ENE of Peaceful Valley, Washington · 18633 days ago · 11 km deep · 61 km away
  13. 2.06 km SW of Lake Cavanaugh, Washington · 18634 days ago · 11 km deep · 53 km away
  14. 2.66 km WSW of Lake Cavanaugh, Washington · 18634 days ago · 7 km deep · 52 km away
  15. 2.56 km WSW of Lake Cavanaugh, Washington · 18635 days ago · 3 km deep · 52 km away
  16. 1.83 km SSE of La Conner, Washington · 18637 days ago · -1 km deep · 26 km away
  17. 2.03 km WSW of Woodway, Washington · 18640 days ago · 11 km deep · 87 km away
  18. 1.98 km S of Chilliwack, Canada · 18640 days ago · 6 km deep · 81 km away
  19. 2.02 km SW of Lake Forest Park, Washington · 18641 days ago · 14 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10861933. Read Tue, Sep 22, 2026, 8:47 AM UTC.