Washington earthquakes

M1.8 earthquake 3 km NNW of Seabeck, Washington

A magnitude 1.8 earthquake struck 3 km NNW of Seabeck, Washington on Thu, Aug 22, 1985, 7:18 AM PDT (14:18 UTC), 50 km (31 mi) below the surface.

A larger quake followed: M2.3 2 km ENE of Keyport, Washington. This one was a foreshock.

Seabeck forecastMore in Washington

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
1.8 (md), micro
Local time
UTC
1985-08-22 14:18:14 UTC
Depth
49.8 km (31.0 mi), shallow
Epicenter
47.667° N, 122.847° 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 1.0 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
34°
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: 28 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.54 km N of Seattle, Washington · 15005 days ago · 21 km deep · 38 km away
  2. 1.55 km SSE of Edison, Washington · 15002 days ago · 15 km deep · 100 km away
  3. 1.51 km ESE of Keyport, Washington · 14998 days ago · 23 km deep · 18 km away
  4. 1.81 km NNE of Port Townsend, Washington · 14998 days ago · 20 km deep · 51 km away
  5. 2.32 km ENE of Keyport, Washington · 14995 days ago · 19 km deep · 20 km away
  6. 1.65 km NNW of Maplewood, Washington · 14988 days ago · 17 km deep · 32 km away
  7. 2.52 km SW of Des Moines, Washington · 14988 days ago · 14 km deep · 49 km away
  8. 1.52 km SW of Des Moines, Washington · 14988 days ago · 15 km deep · 49 km away
  9. 2.37 km SSE of Carbonado, Washington · 14986 days ago · 14 km deep · 96 km away
  10. 2.526 km SE of Neilton, Washington · 14986 days ago · 1 km deep · 71 km away
  11. 1.812 km W of Greenwater, Washington · 14985 days ago · 14 km deep · 96 km away
  12. 3.04 km WSW of Des Moines, Washington · 14984 days ago · 19 km deep · 46 km away
  13. 1.85 km E of Hobart, Washington · 14981 days ago · 10 km deep · 76 km away
  14. 2.21 km SSW of Mount Vernon, Washington · 14980 days ago · 16 km deep · 90 km away
  15. 1.51 km NNW of Freeland, Washington · 14978 days ago · 18 km deep · 46 km away
  16. 2.03 km SSE of Issaquah, Washington · 14977 days ago · -1 km deep · 65 km away
  17. 2.63 km NW of Redmond, Washington · 14974 days ago · 8 km deep · 53 km away
  18. 1.53 km S of Monroe, Washington · 14972 days ago · -1 km deep · 68 km away
  19. 2.23 km S of Issaquah, Washington · 14972 days ago · 0 km deep · 65 km away
  20. 1.82 km WNW of Navy Yard City, Washington · 14971 days ago · 13 km deep · 17 km away
  21. 2.43 km NW of Burien, Washington · 14970 days ago · 23 km deep · 40 km away
  22. 2.02 km NW of Burien, Washington · 14970 days ago · 22 km deep · 41 km away
  23. 1.6Washington · 14969 days ago · 27 km deep · 92 km away
  24. 2.87 km N of Quilcene, Washington · 14961 days ago · 20 km deep · 25 km away
  25. 2.07 km WNW of Gorst, Washington · 14957 days ago · 21 km deep · 14 km away
  26. 1.94 km E of Granite Falls, Washington · 14954 days ago · -1 km deep · 84 km away
  27. 2.70 km ENE of Riverbend, Washington · 14952 days ago · 15 km deep · 86 km away
  28. 2.69 km W of Belfair, Washington · 14950 days ago · 15 km deep · 27 km away

Before

  1. 1.612 km ESE of Enumclaw, Washington · 15009 days ago · 1 km deep · 95 km away
  2. 1.61 km NW of Lake Roesiger, Washington · 15011 days ago · 12 km deep · 77 km away
  3. 1.72 km SSE of Crocker, Washington · 15014 days ago · 0 km deep · 88 km away
  4. 1.6Puget Sound region, Washington · 15020 days ago · 0 km deep · 89 km away
  5. 2.013 km E of Wilkeson, Washington · 15025 days ago · 10 km deep · 98 km away
  6. 1.64 km WSW of Monroe, Washington · 15026 days ago · -1 km deep · 64 km away
  7. 1.53 km SW of Mirrormont, Washington · 15027 days ago · 21 km deep · 67 km away
  8. 1.97 km SSE of Carbonado, Washington · 15027 days ago · 15 km deep · 96 km away
  9. 3.36 km S of Oak Bay, Canada · 15029 days ago · 18 km deep · 87 km away
  10. 2.03 km E of Granite Falls, Washington · 15030 days ago · -1 km deep · 84 km away
  11. 1.84 km WSW of Wilderness Rim, Washington · 15033 days ago · 17 km deep · 81 km away
  12. 2.17 km NE of Hoodsport, Washington · 15035 days ago · 10 km deep · 29 km away
  13. 2.56 km NE of Hoodsport, Washington · 15036 days ago · 6 km deep · 30 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10195423. Read Wed, Sep 23, 2026, 1:57 AM UTC.