Washington earthquakes

M1.6 earthquake 23 km ESE of Packwood, Washington

A magnitude 1.6 earthquake struck 23 km ESE of Packwood, Washington on Wed, Sep 9, 1981, 11:45 PM PDT (06:45 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.6 24 km ESE of Packwood, 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
1981-09-10 06:45:55 UTC
Depth
-1.0 km (-0.6 mi), shallow
Epicenter
46.508° N, 121.392° 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 0.2 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
63°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 26 in the 30 days before it.

After

  1. 2.423 km ESE of Packwood, Washington · 16456 days ago · -1 km deep · 1 km away
  2. 1.518 km NNE of Ashford, Washington · 16453 days ago · 9 km deep · 62 km away
  3. 1.517 km NW of Trout Lake, Washington · 16437 days ago · 3 km deep · 47 km away
  4. 1.823 km S of Morton, Washington · 16437 days ago · 8 km deep · 68 km away
  5. 2.624 km ESE of Packwood, Washington · 16428 days ago · 3 km deep · 2 km away
  6. 1.66 km SSE of Thorp, Washington · 16425 days ago · 10 km deep · 80 km away
  7. 1.922 km NW of Bickleton, Washington · 16424 days ago · 12 km deep · 80 km away
  8. 1.95 km SSE of Mineral, Washington · 16422 days ago · 19 km deep · 61 km away
  9. 2.32 km SW of Kittitas, Washington · 16421 days ago · 8 km deep · 89 km away
  10. 1.625 km ESE of Packwood, Washington · 16416 days ago · 0 km deep · 6 km away
  11. 1.638 km NNE of Amboy, Washington · 16412 days ago · 1 km deep · 71 km away
  12. 2.21 km NE of White Salmon, Washington · 16406 days ago · 3 km deep · 86 km away
  13. 2.11 km SW of Kittitas, Washington · 16406 days ago · 8 km deep · 89 km away
  14. 1.720 km S of Morton, Washington · 16396 days ago · 8 km deep · 67 km away

Before

  1. 2.024 km ESE of Packwood, Washington · 16456 days ago · 3 km deep · 1 km away
  2. 1.521 km NE of Ashford, Washington · 16458 days ago · 6 km deep · 55 km away
  3. 1.938 km NNE of Amboy, Washington · 16459 days ago · -1 km deep · 70 km away
  4. 1.637 km NNE of Amboy, Washington · 16459 days ago · -1 km deep · 70 km away
  5. 1.638 km NNE of Amboy, Washington · 16460 days ago · 0 km deep · 70 km away
  6. 1.938 km NNE of Amboy, Washington · 16462 days ago · -1 km deep · 70 km away
  7. 1.724 km S of Morton, Washington · 16463 days ago · 3 km deep · 66 km away
  8. 1.924 km S of Morton, Washington · 16463 days ago · 3 km deep · 66 km away
  9. 1.56 km S of Morton, Washington · 16463 days ago · 4 km deep · 68 km away
  10. 1.638 km NNE of Amboy, Washington · 16464 days ago · 0 km deep · 70 km away
  11. 1.838 km NNE of Amboy, Washington · 16465 days ago · 0 km deep · 70 km away
  12. 1.524 km ENE of Ashford, Washington · 16466 days ago · -1 km deep · 47 km away
  13. 1.637 km NNE of Amboy, Washington · 16466 days ago · 1 km deep · 71 km away
  14. 2.023 km ESE of Packwood, Washington · 16470 days ago · 5 km deep · 2 km away
  15. 1.525 km ENE of Ashford, Washington · 16472 days ago · 0 km deep · 47 km away
  16. 1.724 km ESE of Packwood, Washington · 16472 days ago · -1 km deep · 2 km away
  17. 3.422 km S of Morton, Washington · 16473 days ago · 7 km deep · 67 km away
  18. 1.522 km S of Morton, Washington · 16476 days ago · 7 km deep · 68 km away
  19. 2.321 km SSE of Packwood, Washington · 16479 days ago · 1 km deep · 18 km away
  20. 2.04 km SSW of Orting, Washington · 16479 days ago · 0 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10116588. Read Tue, Sep 29, 2026, 10:26 PM UTC.