Washington earthquakes

M1.8 earthquake 5 km SSW of Gorst, Washington

A magnitude 1.8 earthquake struck 5 km SSW of Gorst, Washington on Sun, Aug 30, 1970, 8:49 AM PDT (15:49 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M4.1 3 km NE of Dash Point, Washington. This one was a foreshock.

Gorst 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
1.8 (md), micro
Local time
UTC
1970-08-30 15:49:44 UTC
Depth
21.9 km (13.6 mi), shallow
Epicenter
47.480° N, 122.740° 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 0.1 km horizontally, 0.1 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
129°
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.97 km NNW of Freeland, Washington · 20483 days ago · 58 km deep · 68 km away
  2. 2.18 km N of Rochester, Washington · 20482 days ago · 47 km deep · 70 km away
  3. 2.99 km S of Carbonado, Washington · 20481 days ago · 3 km deep · 75 km away
  4. 3.28 km NE of Fall City, Washington · 20480 days ago · 15 km deep · 72 km away
  5. 2.13 km NW of Belfair, Washington · 20461 days ago · 21 km deep · 9 km away
  6. 2.34 km SSE of Carbonado, Washington · 20460 days ago · 12 km deep · 73 km away
  7. 1.70 km ENE of Carbonado, Washington · 20460 days ago · 3 km deep · 69 km away
  8. 1.92 km SSE of Carbonado, Washington · 20459 days ago · 3 km deep · 71 km away
  9. 1.58 km NNE of Brinnon, Washington · 20457 days ago · 18 km deep · 31 km away
  10. 2.84 km ENE of Kingston, Washington · 20457 days ago · 9 km deep · 44 km away
  11. 1.514 km W of Brinnon, Washington · 20454 days ago · 44 km deep · 34 km away
  12. 1.911 km E of Lake Marcel-Stillwater, Washington · 20454 days ago · 3 km deep · 77 km away
  13. 1.76 km SSE of Vashon, Washington · 20453 days ago · 20 km deep · 26 km away
  14. 2.13 km S of Shoreline, Washington · 20453 days ago · 14 km deep · 41 km away
  15. 2.04 km NE of Vashon, Washington · 20453 days ago · 22 km deep · 24 km away
  16. 2.34 km SE of Carbonado, Washington · 20451 days ago · 9 km deep · 73 km away
  17. 1.75 km NW of Bryn Mawr-Skyway, Washington · 20444 days ago · 26 km deep · 35 km away
  18. 1.74 km ENE of White Center, Washington · 20442 days ago · 25 km deep · 33 km away
  19. 2.722 km ENE of Ashford, Washington · 20439 days ago · 0 km deep · 100 km away
  20. 2.05 km SSW of Shoreline, Washington · 20438 days ago · 21 km deep · 38 km away
  21. 2.85 km SSE of Seabeck, Washington · 20436 days ago · 15 km deep · 13 km away
  22. 4.13 km NE of Dash Point, Washington · 20430 days ago · 12 km deep · 31 km away
  23. 2.111 km NNW of Snoqualmie Pass, Washington · 20429 days ago · 98 km deep · 95 km away
  24. 2.00 km NE of Yarrow Point, Washington · 20428 days ago · -1 km deep · 44 km away

Before

  1. 2.72 km SSE of Carbonado, Washington · 20492 days ago · 3 km deep · 71 km away
  2. 2.01 km ENE of Sammamish, Washington · 20492 days ago · 20 km deep · 54 km away
  3. 1.63 km SSE of Ames Lake, Washington · 20492 days ago · 20 km deep · 61 km away
  4. 2.211 km NE of Snoqualmie, Washington · 20493 days ago · 21 km deep · 77 km away
  5. 2.98 km NE of Fall City, Washington · 20493 days ago · 13 km deep · 72 km away
  6. 1.711 km E of Carnation, Washington · 20494 days ago · 4 km deep · 75 km away
  7. 2.810 km E of Carnation, Washington · 20494 days ago · 14 km deep · 75 km away
  8. 2.06 km SW of Alder, Washington · 20499 days ago · 25 km deep · 86 km away
  9. 2.12 km NNE of Yarrow Point, Washington · 20501 days ago · 22 km deep · 45 km away
  10. 2.15 km SSE of Orting, Washington · 20505 days ago · 0 km deep · 64 km away
  11. 2.92 km N of Union, Washington · 20507 days ago · 36 km deep · 30 km away
  12. 2.13 km SSW of Oak Harbor, Washington · 20509 days ago · 34 km deep · 88 km away
  13. 2.46 km ENE of Lofall, Washington · 20513 days ago · 18 km deep · 43 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10836878. Read Wed, Sep 30, 2026, 7:12 PM UTC.