Washington earthquakes

M1.7 earthquake 4 km WNW of Orcas, Washington

A magnitude 1.7 earthquake struck 4 km WNW of Orcas, Washington on Fri, May 18, 1984, 1:30 AM PDT (08:30 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M2.1 16 km S of Glacier, 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
1.7 (md), micro
Local time
UTC
1984-05-18 08:30:48 UTC
Depth
15.1 km (9.4 mi), shallow
Epicenter
48.613° N, 123.007° 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, 0.5 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
60°
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: 25 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.116 km S of Glacier, Washington · 15465 days ago · -1 km deep · 80 km away
  2. 1.6Washington · 15465 days ago · -1 km deep · 79 km away
  3. 2.115 km W of Quilcene, Washington · 15463 days ago · 46 km deep · 86 km away
  4. 2.1Washington-British Columbia border region · 15460 days ago · 17 km deep · 37 km away
  5. 2.211 km NNE of Hamilton, Washington · 15456 days ago · 2 km deep · 78 km away
  6. 1.69 km N of Hamilton, Washington · 15456 days ago · -1 km deep · 75 km away
  7. 1.61 km SSE of Friday Harbor, Washington · 15453 days ago · 49 km deep · 10 km away
  8. 2.05 km WNW of Sedro-Woolley, Washington · 15452 days ago · 13 km deep · 53 km away
  9. 1.65 km NW of Sedro-Woolley, Washington · 15452 days ago · 31 km deep · 54 km away
  10. 1.51 km ENE of West Lake Stevens, Washington · 15451 days ago · 58 km deep · 97 km away
  11. 1.72 km NNW of Alger, Washington · 15449 days ago · 12 km deep · 48 km away
  12. 2.03 km NNW of North Saanich, Canada · 15449 days ago · 21 km deep · 33 km away
  13. 2.15 km N of Burlington, Washington · 15446 days ago · 15 km deep · 52 km away
  14. 1.64 km W of Lynden, Washington · 15444 days ago · 17 km deep · 52 km away
  15. 2.66 km SE of Edison, Washington · 15440 days ago · 9 km deep · 46 km away
  16. 2.25 km ENE of Bay View, Washington · 15438 days ago · 14 km deep · 46 km away
  17. 2.36 km W of Rockport, Washington · 15438 days ago · 2 km deep · 99 km away
  18. 2.016 km W of Coupeville, Washington · 15433 days ago · 46 km deep · 42 km away
  19. 1.86 km NW of Bangor Trident Base, Washington · 15432 days ago · 13 km deep · 96 km away
  20. 2.16 km NNW of Freeland, Washington · 15421 days ago · 29 km deep · 70 km away
  21. 2.99 km N of Lyman, Washington · 15414 days ago · 2 km deep · 70 km away
  22. 1.73 km ENE of Granite Falls, Washington · 15414 days ago · 1 km deep · 99 km away
  23. 1.98 km ESE of Quilcene, Washington · 15414 days ago · 22 km deep · 92 km away
  24. 1.54 km S of Everson, Washington · 15412 days ago · 15 km deep · 57 km away
  25. 2.48 km N of Lyman, Washington · 15411 days ago · 0 km deep · 70 km away

Before

  1. 2.05 km ENE of Anacortes, Washington · 15475 days ago · 17 km deep · 35 km away
  2. 2.19 km NNW of Carlsborg, Washington · 15478 days ago · 40 km deep · 53 km away
  3. 1.74 km E of Granite Falls, Washington · 15480 days ago · -1 km deep · 100 km away
  4. 1.94 km SSW of River Road, Washington · 15483 days ago · -1 km deep · 66 km away
  5. 1.66 km NW of Burlington, Washington · 15486 days ago · 18 km deep · 47 km away
  6. 1.96 km SSE of Concrete, Washington · 15486 days ago · 3 km deep · 97 km away
  7. 1.73 km S of Alger, Washington · 15490 days ago · 18 km deep · 50 km away
  8. 2.09 km E of Orcas, Washington · 15492 days ago · 6 km deep · 14 km away
  9. 1.72 km SSW of Everett, Washington · 15496 days ago · 26 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10176033. Read Tue, Sep 22, 2026, 5:27 PM UTC.