Washington earthquakes

M2.9 earthquake 20 km ENE of Yacolt, Washington

A magnitude 2.9 earthquake struck 20 km ENE of Yacolt, Washington on Tue, Jul 21, 1981, 3:11 PM PDT (22:11 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M3.4 22 km S of Morton, Washington. This one was a foreshock.

Yacolt 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
2.9 (md), micro
Local time
UTC
1981-07-21 22:11:02 UTC
Depth
7.3 km (4.5 mi), shallow
Epicenter
45.910° N, 122.145° 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, 0.6 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
83°
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 32 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.721 km S of Morton, Washington · 16496 days ago · 10 km deep · 51 km away
  2. 1.7Washington · 16495 days ago · 11 km deep · 47 km away
  3. 2.221 km S of Morton, Washington · 16494 days ago · 10 km deep · 51 km away
  4. 1.721 km S of Morton, Washington · 16494 days ago · 10 km deep · 51 km away
  5. 1.522 km S of Morton, Washington · 16490 days ago · 9 km deep · 51 km away
  6. 1.521 km ESE of Packwood, Washington · 16487 days ago · 6 km deep · 89 km away
  7. 1.821 km S of Morton, Washington · 16483 days ago · 14 km deep · 52 km away
  8. 2.829 km ESE of Packwood, Washington · 16482 days ago · 3 km deep · 89 km away
  9. 1.737 km NNE of Amboy, Washington · 16477 days ago · -1 km deep · 32 km away
  10. 1.638 km NNE of Amboy, Washington · 16476 days ago · -1 km deep · 33 km away
  11. 1.522 km ESE of Packwood, Washington · 16475 days ago · 2 km deep · 88 km away
  12. 1.537 km NNE of Amboy, Washington · 16472 days ago · -1 km deep · 33 km away
  13. 2.321 km SSE of Packwood, Washington · 16471 days ago · 1 km deep · 71 km away
  14. 1.67 km WSW of Felida, Washington · 16471 days ago · 21 km deep · 56 km away
  15. 1.522 km S of Morton, Washington · 16468 days ago · 7 km deep · 51 km away
  16. 3.422 km S of Morton, Washington · 16465 days ago · 7 km deep · 51 km away
  17. 1.724 km ESE of Packwood, Washington · 16464 days ago · -1 km deep · 90 km away
  18. 2.023 km ESE of Packwood, Washington · 16462 days ago · 5 km deep · 90 km away
  19. 1.637 km NNE of Amboy, Washington · 16458 days ago · 1 km deep · 33 km away
  20. 1.838 km NNE of Amboy, Washington · 16457 days ago · 0 km deep · 33 km away
  21. 1.638 km NNE of Amboy, Washington · 16456 days ago · 0 km deep · 33 km away
  22. 1.56 km S of Morton, Washington · 16455 days ago · 4 km deep · 66 km away
  23. 1.924 km S of Morton, Washington · 16455 days ago · 3 km deep · 48 km away
  24. 1.724 km S of Morton, Washington · 16455 days ago · 3 km deep · 48 km away
  25. 1.938 km NNE of Amboy, Washington · 16454 days ago · -1 km deep · 33 km away
  26. 1.638 km NNE of Amboy, Washington · 16452 days ago · 0 km deep · 33 km away
  27. 1.637 km NNE of Amboy, Washington · 16451 days ago · -1 km deep · 32 km away
  28. 1.938 km NNE of Amboy, Washington · 16451 days ago · -1 km deep · 33 km away
  29. 2.024 km ESE of Packwood, Washington · 16448 days ago · 3 km deep · 89 km away
  30. 1.623 km ESE of Packwood, Washington · 16448 days ago · -1 km deep · 88 km away
  31. 2.423 km ESE of Packwood, Washington · 16448 days ago · -1 km deep · 89 km away
  32. 1.632 km NNE of Detroit, Oregon · 16447 days ago · 8 km deep · 100 km away

Before

  1. 2.523 km S of Morton, Washington · 16498 days ago · -1 km deep · 50 km away
  2. 3.120 km S of Morton, Washington · 16509 days ago · 8 km deep · 52 km away
  3. 2.023 km ESE of Packwood, Washington · 16513 days ago · 5 km deep · 90 km away
  4. 2.223 km ESE of Packwood, Washington · 16517 days ago · 4 km deep · 91 km away
  5. 1.723 km ESE of Packwood, Washington · 16517 days ago · 3 km deep · 88 km away
  6. 2.223 km ESE of Packwood, Washington · 16517 days ago · 4 km deep · 90 km away
  7. 2.422 km ESE of Packwood, Washington · 16517 days ago · 5 km deep · 91 km away
  8. 2.611 km W of Pine Hollow, Oregon · 16517 days ago · 5 km deep · 91 km away
  9. 2.223 km ESE of Packwood, Washington · 16517 days ago · 4 km deep · 91 km away
  10. 1.524 km ESE of Packwood, Washington · 16519 days ago · 4 km deep · 90 km away
  11. 2.622 km S of Morton, Washington · 16523 days ago · 9 km deep · 51 km away
  12. 1.521 km S of Morton, Washington · 16524 days ago · 7 km deep · 52 km away
  13. 1.924 km ESE of Packwood, Washington · 16524 days ago · 4 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10117848. Read Mon, Sep 21, 2026, 9:23 PM UTC.