Washington earthquakes

M1.9 earthquake Washington

A magnitude 1.9 earthquake struck in Washington on Tue, Mar 25, 1986, 8:00 PM PST (04:00 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M2.9 2 km S of Swede Heaven, Washington. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.9 (md), micro
Local time
UTC
1986-03-26 04:00:53 UTC
Depth
21.3 km (13.3 mi), shallow
Epicenter
48.209° N, 122.815° 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 0.5 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
56°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.63 km WNW of Picnic Point, Washington · 14790 days ago · 9 km deep · 48 km away
  2. 1.72 km S of Swede Heaven, Washington · 14790 days ago · 0 km deep · 81 km away
  3. 2.92 km S of Swede Heaven, Washington · 14790 days ago · 1 km deep · 80 km away
  4. 1.73 km SSW of Swede Heaven, Washington · 14790 days ago · 3 km deep · 79 km away
  5. 3.1Washington · 14789 days ago · 1 km deep · 80 km away
  6. 1.72 km SSW of Swede Heaven, Washington · 14789 days ago · 2 km deep · 80 km away
  7. 3.62 km S of Swede Heaven, Washington · 14789 days ago · 2 km deep · 80 km away
  8. 2.4Washington · 14789 days ago · 3 km deep · 80 km away
  9. 2.12 km S of Swede Heaven, Washington · 14789 days ago · 1 km deep · 80 km away
  10. 1.83 km ENE of East Renton Highlands, Washington · 14788 days ago · 0 km deep · 96 km away
  11. 3.32 km S of Swede Heaven, Washington · 14788 days ago · 1 km deep · 80 km away
  12. 2.24 km ENE of Carnation, Washington · 14787 days ago · 17 km deep · 93 km away
  13. 2.32 km SSW of Swede Heaven, Washington · 14786 days ago · 1 km deep · 80 km away
  14. 2.40 km ESE of Clyde Hill, Washington · 14786 days ago · 24 km deep · 79 km away
  15. 2.04 km NNW of Woods Creek, Washington · 14779 days ago · 16 km deep · 74 km away
  16. 2.310 km NW of Friday Harbor, Washington · 14776 days ago · 12 km deep · 50 km away
  17. 1.82 km S of Swede Heaven, Washington · 14774 days ago · 0 km deep · 80 km away
  18. 1.72 km SSW of Swede Heaven, Washington · 14773 days ago · 3 km deep · 80 km away
  19. 1.72 km SSW of Swede Heaven, Washington · 14773 days ago · 2 km deep · 80 km away
  20. 1.52 km SSW of Swede Heaven, Washington · 14773 days ago · 3 km deep · 80 km away
  21. 2.48 km SE of Glacier, Washington · 14768 days ago · 0 km deep · 99 km away
  22. 3.05 km ENE of Ferndale, Washington · 14766 days ago · 17 km deep · 76 km away
  23. 1.57 km NNE of Lake Cavanaugh, Washington · 14753 days ago · 2 km deep · 65 km away
  24. 2.36 km S of Hansville, Washington · 14752 days ago · 25 km deep · 44 km away
  25. 2.63 km NNW of Kingston, Washington · 14752 days ago · 25 km deep · 48 km away
  26. 1.615 km E of North Saanich, Canada · 14732 days ago · 20 km deep · 60 km away

Before

  1. 1.52 km SW of Swede Heaven, Washington · 14793 days ago · 3 km deep · 79 km away
  2. 1.813 km SE of Oak Bay, Canada · 14804 days ago · 49 km deep · 31 km away
  3. 2.29 km NNW of Friday Harbor, Washington · 14807 days ago · 10 km deep · 48 km away
  4. 2.03 km ESE of Key Center, Washington · 14809 days ago · 13 km deep · 98 km away
  5. 1.74 km E of Lake Marcel-Stillwater, Washington · 14809 days ago · 17 km deep · 91 km away
  6. 2.13 km SSE of Klahanie, Washington · 14815 days ago · 15 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10204938. Read Wed, Sep 23, 2026, 11:20 AM UTC.