Washington earthquakes

M2.8 earthquake 29 km ESE of Packwood, Washington

A magnitude 2.8 earthquake struck 29 km ESE of Packwood, Washington on Thu, Aug 6, 1981, 5:32 AM PDT (12:32 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.4 22 km S of Morton, 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
2.8 (md), micro
Local time
UTC
1981-08-06 12:32:28 UTC
Depth
2.9 km (1.8 mi), shallow
Epicenter
46.479° N, 121.333° 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 0.7 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
40°
Stations used
47

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 31 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.737 km NNE of Amboy, Washington · 16478 days ago · -1 km deep · 72 km away
  2. 1.923 km ENE of Ashford, Washington · 16477 days ago · 0 km deep · 55 km away
  3. 1.923 km ENE of Ashford, Washington · 16477 days ago · -1 km deep · 53 km away
  4. 1.638 km NNE of Amboy, Washington · 16477 days ago · -1 km deep · 72 km away
  5. 1.522 km ESE of Packwood, Washington · 16476 days ago · 2 km deep · 7 km away
  6. 1.537 km NNE of Amboy, Washington · 16473 days ago · -1 km deep · 73 km away
  7. 2.04 km SSW of Orting, Washington · 16472 days ago · 0 km deep · 93 km away
  8. 2.321 km SSE of Packwood, Washington · 16472 days ago · 1 km deep · 20 km away
  9. 1.522 km S of Morton, Washington · 16469 days ago · 7 km deep · 71 km away
  10. 3.422 km S of Morton, Washington · 16466 days ago · 7 km deep · 71 km away
  11. 1.724 km ESE of Packwood, Washington · 16465 days ago · -1 km deep · 6 km away
  12. 1.525 km ENE of Ashford, Washington · 16465 days ago · 0 km deep · 52 km away
  13. 2.023 km ESE of Packwood, Washington · 16463 days ago · 5 km deep · 6 km away
  14. 1.637 km NNE of Amboy, Washington · 16459 days ago · 1 km deep · 73 km away
  15. 1.524 km ENE of Ashford, Washington · 16459 days ago · -1 km deep · 52 km away
  16. 1.838 km NNE of Amboy, Washington · 16458 days ago · 0 km deep · 73 km away
  17. 1.638 km NNE of Amboy, Washington · 16457 days ago · 0 km deep · 73 km away
  18. 1.56 km S of Morton, Washington · 16456 days ago · 4 km deep · 73 km away
  19. 1.924 km S of Morton, Washington · 16456 days ago · 3 km deep · 70 km away
  20. 1.724 km S of Morton, Washington · 16456 days ago · 3 km deep · 70 km away
  21. 1.938 km NNE of Amboy, Washington · 16456 days ago · -1 km deep · 72 km away
  22. 1.638 km NNE of Amboy, Washington · 16453 days ago · 0 km deep · 72 km away
  23. 1.637 km NNE of Amboy, Washington · 16452 days ago · -1 km deep · 73 km away
  24. 1.938 km NNE of Amboy, Washington · 16452 days ago · -1 km deep · 72 km away
  25. 1.521 km NE of Ashford, Washington · 16451 days ago · 6 km deep · 61 km away
  26. 2.024 km ESE of Packwood, Washington · 16449 days ago · 3 km deep · 6 km away
  27. 1.623 km ESE of Packwood, Washington · 16449 days ago · -1 km deep · 6 km away
  28. 2.423 km ESE of Packwood, Washington · 16449 days ago · -1 km deep · 6 km away
  29. 1.518 km NNE of Ashford, Washington · 16446 days ago · 9 km deep · 67 km away
  30. 1.517 km NW of Trout Lake, Washington · 16430 days ago · 3 km deep · 47 km away
  31. 1.823 km S of Morton, Washington · 16430 days ago · 8 km deep · 71 km away

Before

  1. 1.821 km S of Morton, Washington · 16484 days ago · 14 km deep · 73 km away
  2. 1.930 km E of Packwood, Washington · 16485 days ago · 7 km deep · 13 km away
  3. 1.516 km NNE of Ashford, Washington · 16488 days ago · 8 km deep · 65 km away
  4. 1.521 km ESE of Packwood, Washington · 16488 days ago · 6 km deep · 8 km away
  5. 1.522 km S of Morton, Washington · 16491 days ago · 9 km deep · 71 km away
  6. 1.68 km ESE of McKenna, Washington · 16492 days ago · 20 km deep · 98 km away
  7. 1.623 km ENE of Ashford, Washington · 16494 days ago · -1 km deep · 53 km away
  8. 1.721 km S of Morton, Washington · 16495 days ago · 10 km deep · 72 km away
  9. 2.221 km S of Morton, Washington · 16495 days ago · 10 km deep · 72 km away
  10. 1.83 km NNE of Crocker, Washington · 16495 days ago · 2 km deep · 91 km away
  11. 1.7Washington · 16496 days ago · 11 km deep · 71 km away
  12. 1.721 km S of Morton, Washington · 16497 days ago · 10 km deep · 71 km away
  13. 2.920 km ENE of Yacolt, Washington · 16499 days ago · 7 km deep · 89 km away
  14. 2.523 km S of Morton, Washington · 16499 days ago · -1 km deep · 71 km away
  15. 3.120 km S of Morton, Washington · 16510 days ago · 8 km deep · 71 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10125563. Read Tue, Sep 22, 2026, 11:28 PM UTC.