Washington earthquakes

M1.6 earthquake 12 km SW of Seabeck, Washington

A magnitude 1.6 earthquake struck 12 km SW of Seabeck, Washington on Thu, Dec 1, 1983, 12:05 PM PST (20:05 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M2.3 1 km E of Clyde Hill, 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
1.6 (md), micro
Local time
UTC
1983-12-01 20:05:46 UTC
Depth
11.8 km (7.3 mi), shallow
Epicenter
47.555° N, 122.932° 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, 0.6 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
99°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 2.31 km E of Clyde Hill, Washington · 15632 days ago · 24 km deep · 56 km away
  2. 1.94 km NNW of Aberdeen, Washington · 15627 days ago · 32 km deep · 91 km away
  3. 3.01 km N of Black Diamond, Washington · 15621 days ago · 12 km deep · 74 km away
  4. 1.65 km E of Tanner, Washington · 15621 days ago · -1 km deep · 95 km away
  5. 1.84 km E of Granite Falls, Washington · 15618 days ago · -1 km deep · 97 km away
  6. 2.22 km NNE of Redmond, Washington · 15610 days ago · 15 km deep · 63 km away
  7. 2.83 km N of Bainbridge Island, Washington · 15602 days ago · 18 km deep · 33 km away
  8. 1.92 km NNE of Kent, Washington · 15601 days ago · 38 km deep · 55 km away
  9. 1.69 km NNE of Lake Marcel-Stillwater, Washington · 15601 days ago · -1 km deep · 84 km away
  10. 1.57 km SSE of Quilcene, Washington · 15599 days ago · 50 km deep · 24 km away
  11. 1.81 km WNW of Lake Forest Park, Washington · 15599 days ago · 16 km deep · 53 km away
  12. 1.54 km NE of Granite Falls, Washington · 15596 days ago · 12 km deep · 97 km away
  13. 1.83 km N of Bainbridge Island, Washington · 15596 days ago · 18 km deep · 34 km away
  14. 1.72 km SSE of Fall City, Washington · 15590 days ago · -1 km deep · 79 km away
  15. 2.013 km SE of Carbonado, Washington · 15588 days ago · 17 km deep · 99 km away
  16. 1.63 km NNW of Gorst, Washington · 15582 days ago · 14 km deep · 15 km away
  17. 2.31 km SSW of Navy Yard City, Washington · 15581 days ago · 21 km deep · 19 km away
  18. 1.65 km NNE of Lake Roesiger, Washington · 15580 days ago · 15 km deep · 94 km away
  19. 1.81 km ESE of Enetai, Washington · 15576 days ago · 29 km deep · 27 km away

Before

  1. 2.17 km SSW of La Conner, Washington · 15637 days ago · 17 km deep · 91 km away
  2. 1.51 km NE of Quilcene, Washington · 15637 days ago · 4 km deep · 31 km away
  3. 1.67 km S of River Road, Washington · 15637 days ago · 0 km deep · 53 km away
  4. 1.98 km NNE of Lake Marcel-Stillwater, Washington · 15638 days ago · -1 km deep · 83 km away
  5. 2.36 km SE of Black Diamond, Washington · 15640 days ago · 14 km deep · 80 km away
  6. 1.51 km SE of Coupeville, Washington · 15644 days ago · 20 km deep · 75 km away
  7. 2.07 km NE of Lofall, Washington · 15649 days ago · 19 km deep · 42 km away
  8. 1.73 km NNW of White Center, Washington · 15650 days ago · 21 km deep · 42 km away
  9. 1.94 km NNW of Bryn Mawr-Skyway, Washington · 15651 days ago · 11 km deep · 49 km away
  10. 1.65 km NE of Mirrormont, Washington · 15655 days ago · 15 km deep · 74 km away
  11. 1.8Washington · 15661 days ago · 24 km deep · 74 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10167978. Read Tue, Sep 22, 2026, 11:33 AM UTC.