Washington earthquakes

M1.8 earthquake 7 km WNW of Orcas, Washington

A magnitude 1.8 earthquake struck 7 km WNW of Orcas, Washington on Thu, Nov 3, 1983, 1:04 AM PST (09:04 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M2.3 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
1.8 (md), micro
Local time
UTC
1983-11-03 09:04:07 UTC
Depth
13.2 km (8.2 mi), shallow
Epicenter
48.620° N, 123.035° 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
±0.11
Depth from
From location
Station coverage gap
54°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 1.8Washington · 15666 days ago · 24 km deep · 47 km away
  2. 2.07 km NE of Lofall, Washington · 15654 days ago · 19 km deep · 91 km away
  3. 1.55 km NNE of Bryant, Washington · 15651 days ago · 15 km deep · 77 km away
  4. 1.51 km SE of Coupeville, Washington · 15649 days ago · 20 km deep · 53 km away
  5. 1.67 km S of River Road, Washington · 15642 days ago · 0 km deep · 69 km away
  6. 1.51 km NE of Quilcene, Washington · 15642 days ago · 4 km deep · 88 km away
  7. 2.17 km SSW of La Conner, Washington · 15642 days ago · 17 km deep · 50 km away
  8. 2.3Washington · 15641 days ago · 19 km deep · 43 km away
  9. 2.22 km NW of Deming, Washington · 15640 days ago · 1 km deep · 63 km away
  10. 1.72 km N of Deming, Washington · 15640 days ago · 21 km deep · 65 km away
  11. 1.55 km N of Sedro-Woolley, Washington · 15638 days ago · -1 km deep · 60 km away
  12. 1.80 km NNE of Ferndale, Washington · 15630 days ago · 19 km deep · 41 km away
  13. 1.54 km NE of Conway, Washington · 15630 days ago · 5 km deep · 61 km away
  14. 1.62 km SSW of Bay View, Washington · 15626 days ago · 18 km deep · 43 km away
  15. 1.61 km SW of Bay View, Washington · 15626 days ago · 16 km deep · 43 km away
  16. 1.75 km SW of Mount Vernon, Washington · 15615 days ago · 18 km deep · 54 km away

Before

  1. 2.37 km WNW of Orcas, Washington · 15670 days ago · 18 km deep · 1 km away
  2. 2.45 km WSW of Lake Cavanaugh, Washington · 15671 days ago · 6 km deep · 78 km away
  3. 1.67 km WNW of Orcas, Washington · 15671 days ago · 16 km deep · 0 km away
  4. 1.55 km SW of Hansville, Washington · 15671 days ago · 21 km deep · 87 km away
  5. 2.28 km WNW of Orcas, Washington · 15678 days ago · 14 km deep · 2 km away
  6. 1.99 km WNW of Orcas, Washington · 15678 days ago · 10 km deep · 2 km away
  7. 1.56 km NNE of Orcas, Washington · 15679 days ago · 12 km deep · 10 km away
  8. 2.17 km WNW of Orcas, Washington · 15679 days ago · 15 km deep · 1 km away
  9. 2.48 km NW of Friday Harbor, Washington · 15685 days ago · 51 km deep · 6 km away
  10. 2.36 km WSW of Lake Cavanaugh, Washington · 15685 days ago · 11 km deep · 77 km away
  11. 1.710 km NNW of Six Mile, Canada · 15686 days ago · 26 km deep · 35 km away
  12. 1.63 km S of Mount Vernon, Washington · 15686 days ago · 15 km deep · 58 km away
  13. 1.712 km NNW of Concrete, Washington · 15688 days ago · -1 km deep · 89 km away
  14. 2.36 km WNW of Edison, Washington · 15691 days ago · 5 km deep · 38 km away
  15. 2.29 km NNW of Lake Cavanaugh, Washington · 15692 days ago · -1 km deep · 76 km away
  16. 1.92 km SW of Alger, Washington · 15698 days ago · 62 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10165688. Read Sun, Sep 27, 2026, 6:19 AM UTC.