Washington earthquakes

M1.6 earthquake 15 km NNE of Packwood, Washington

A magnitude 1.6 earthquake struck 15 km NNE of Packwood, Washington on Fri, Aug 26, 1983, 4:22 PM PDT (23:22 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M1.9 20 km ENE of Ashford, Washington. This one was a foreshock.

Carbonado 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
1.6 (md), micro
Local time
UTC
1983-08-26 23:22:25 UTC
Depth
2.2 km (1.3 mi), shallow
Epicenter
46.730° N, 121.565° 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 0.8 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
82°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 30 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.920 km ENE of Ashford, Washington · 15732 days ago · 0 km deep · 20 km away
  2. 1.91 km WNW of Federal Way, Washington · 15726 days ago · 16 km deep · 89 km away
  3. 2.227 km S of Greenwater, Washington · 15724 days ago · -1 km deep · 23 km away
  4. 2.238 km S of Morton, Washington · 15717 days ago · -1 km deep · 75 km away
  5. 1.823 km ESE of Packwood, Washington · 15717 days ago · -1 km deep · 27 km away
  6. 2.211 km ESE of Carbonado, Washington · 15715 days ago · 18 km deep · 43 km away
  7. 2.310 km SE of Mossyrock, Washington · 15713 days ago · 14 km deep · 70 km away
  8. 1.638 km NNE of Amboy, Washington · 15709 days ago · -1 km deep · 76 km away
  9. 2.025 km SSE of Packwood, Washington · 15705 days ago · -1 km deep · 37 km away
  10. 2.125 km SSE of Packwood, Washington · 15702 days ago · 0 km deep · 37 km away
  11. 1.712 km NE of Snoqualmie, Washington · 15702 days ago · 12 km deep · 100 km away
  12. 1.625 km SSE of Packwood, Washington · 15701 days ago · 0 km deep · 37 km away
  13. 1.61 km N of Normandy Park, Washington · 15699 days ago · 17 km deep · 99 km away
  14. 1.638 km NNE of Amboy, Washington · 15698 days ago · -1 km deep · 76 km away
  15. 1.99 km SE of Riverbend, Washington · 15697 days ago · 2 km deep · 77 km away
  16. 2.219 km S of Morton, Washington · 15697 days ago · 8 km deep · 65 km away
  17. 1.914 km SW of Alder, Washington · 15695 days ago · -1 km deep · 66 km away
  18. 2.04 km S of Des Moines, Washington · 15694 days ago · 13 km deep · 91 km away
  19. 2.43 km SSE of Ahtanum, Washington · 15694 days ago · 15 km deep · 77 km away
  20. 3.05 km WNW of Wilderness Rim, Washington · 15694 days ago · 21 km deep · 84 km away
  21. 2.63 km S of Ahtanum, Washington · 15693 days ago · 14 km deep · 75 km away
  22. 1.917 km SE of Carbonado, Washington · 15692 days ago · -1 km deep · 36 km away
  23. 1.737 km NNE of Amboy, Washington · 15691 days ago · -1 km deep · 76 km away
  24. 1.637 km NNE of Amboy, Washington · 15690 days ago · -1 km deep · 76 km away
  25. 1.520 km S of Morton, Washington · 15684 days ago · 9 km deep · 66 km away
  26. 1.736 km NNE of Amboy, Washington · 15682 days ago · -1 km deep · 78 km away
  27. 1.58 km NW of Greenwater, Washington · 15681 days ago · -1 km deep · 54 km away
  28. 2.13 km E of Cle Elum, Washington · 15680 days ago · -1 km deep · 73 km away
  29. 1.71 km NNW of Snoqualmie, Washington · 15677 days ago · 1 km deep · 92 km away
  30. 2.55 km SW of Morton, Washington · 15675 days ago · 16 km deep · 62 km away

Before

  1. 2.238 km NNE of Amboy, Washington · 15733 days ago · -1 km deep · 75 km away
  2. 1.539 km S of Morton, Washington · 15743 days ago · -2 km deep · 74 km away
  3. 3.17 km ENE of Tanner, Washington · 15748 days ago · 12 km deep · 85 km away
  4. 1.838 km NNE of Amboy, Washington · 15756 days ago · -2 km deep · 75 km away
  5. 2.13 km NNE of Packwood, Washington · 15759 days ago · 4 km deep · 13 km away
  6. 1.82 km SSW of Browns Point, Washington · 15760 days ago · 8 km deep · 91 km away
  7. 1.62 km WSW of Wilderness Rim, Washington · 15761 days ago · 19 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10162518. Read Tue, Sep 22, 2026, 8:42 PM UTC.