Washington earthquakes

M1.7 earthquake 6 km WNW of La Conner, Washington

A magnitude 1.7 earthquake struck 6 km WNW of La Conner, Washington on Thu, Aug 4, 1983, 6:59 AM PDT (13:59 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M2.7 11 km WNW of Coupeville, Washington. This one was a foreshock.

La Conner 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
1.7 (md), micro
Local time
UTC
1983-08-04 13:59:51 UTC
Depth
21.8 km (13.6 mi), shallow
Epicenter
48.419° N, 122.575° 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 0.4 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
86°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.75 km WSW of Coupeville, Washington · 15755 days ago · 20 km deep · 28 km away
  2. 1.54 km W of Coupeville, Washington · 15753 days ago · 17 km deep · 26 km away
  3. 1.6Puget Sound region, Washington · 15750 days ago · 7 km deep · 86 km away
  4. 2.711 km WNW of Coupeville, Washington · 15740 days ago · 8 km deep · 25 km away
  5. 1.73 km ENE of Granite Falls, Washington · 15732 days ago · -1 km deep · 60 km away
  6. 2.27 km WNW of Orcas, Washington · 15732 days ago · 14 km deep · 41 km away
  7. 3.911 km W of Port Ludlow, Washington · 15731 days ago · 51 km deep · 58 km away
  8. 2.62 km SSE of Tulalip Bay, Washington · 15731 days ago · 14 km deep · 49 km away
  9. 2.53 km SE of Bangor Trident Base, Washington · 15728 days ago · 19 km deep · 81 km away
  10. 2.03 km NNE of Camano, Washington · 15727 days ago · 23 km deep · 24 km away
  11. 1.55 km W of Coupeville, Washington · 15725 days ago · 17 km deep · 27 km away
  12. 1.82 km W of Coupeville, Washington · 15724 days ago · 23 km deep · 25 km away
  13. 2.65 km SSW of Hansville, Washington · 15724 days ago · 22 km deep · 61 km away
  14. 2.29 km SSW of Everson, Washington · 15719 days ago · 12 km deep · 48 km away
  15. 1.81 km WNW of Lake Roesiger, Washington · 15718 days ago · 13 km deep · 67 km away
  16. 2.05 km W of Coupeville, Washington · 15715 days ago · 22 km deep · 25 km away
  17. 1.91 km NNE of Lake Roesiger, Washington · 15714 days ago · 11 km deep · 68 km away
  18. 1.82 km E of Granite Falls, Washington · 15712 days ago · -1 km deep · 60 km away
  19. 2.17 km NW of Lyman, Washington · 15701 days ago · 19 km deep · 38 km away
  20. 1.98 km SSE of Metchosin, Canada · 15697 days ago · 19 km deep · 68 km away
  21. 1.54 km SE of Oak Bay, Canada · 15697 days ago · 40 km deep · 51 km away
  22. 2.46 km ENE of Deming, Washington · 15696 days ago · 1 km deep · 57 km away
  23. 2.16 km ENE of Deming, Washington · 15696 days ago · 2 km deep · 57 km away

Before

  1. 2.11 km ENE of Clyde Hill, Washington · 15757 days ago · 24 km deep · 92 km away
  2. 2.31 km N of Seabeck, Washington · 15757 days ago · 48 km deep · 87 km away
  3. 1.55 km SSE of Swede Heaven, Washington · 15758 days ago · 9 km deep · 68 km away
  4. 2.03 km SW of Chico, Washington · 15762 days ago · 14 km deep · 92 km away
  5. 1.64 km S of Monroe, Washington · 15762 days ago · -1 km deep · 81 km away
  6. 2.110 km ENE of Lake Marcel-Stillwater, Washington · 15767 days ago · 17 km deep · 97 km away
  7. 2.217 km NNE of May Creek, Washington · 15769 days ago · 0 km deep · 87 km away
  8. 1.87 km SSE of Verlot, Washington · 15772 days ago · -1 km deep · 76 km away
  9. 2.54 km NNW of Verlot, Washington · 15777 days ago · 14 km deep · 65 km away
  10. 1.82 km ESE of Maltby, Washington · 15779 days ago · 22 km deep · 78 km away
  11. 2.00 km WSW of Port Ludlow, Washington · 15780 days ago · 55 km deep · 56 km away
  12. 2.45 km W of Brinnon, Washington · 15783 days ago · 47 km deep · 87 km away
  13. 1.78 km N of Sedro-Woolley, Washington · 15783 days ago · 12 km deep · 32 km away
  14. 1.95 km ENE of Verlot, Washington · 15784 days ago · 13 km deep · 72 km away
  15. 2.13 km WNW of Orcas, Washington · 15784 days ago · 10 km deep · 37 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10157093. Read Tue, Sep 22, 2026, 7:47 PM UTC.