Washington earthquakes

M1.7 earthquake 23 km N of Packwood, Washington

A magnitude 1.7 earthquake struck 23 km N of Packwood, Washington on Sun, Aug 26, 1990, 1:55 AM PDT (08:55 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.7 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
1.7 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-08-26 08:55:01 UTC
Depth
2.7 km (1.7 mi), shallow
Epicenter
46.817° N, 121.727° 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, 0.4 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
136°
Stations used
6

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 13 in the 30 days before it.

After

  1. 1.517 km SSW of Skykomish, Washington · 13185 days ago · 95 km deep · 86 km away
  2. 2.02 km SSW of North Bend, Washington · 13182 days ago · -1 km deep · 74 km away
  3. 1.538 km NNE of Amboy, Washington · 13182 days ago · 2 km deep · 77 km away
  4. 1.95 km WSW of Black Diamond, Washington · 13180 days ago · 20 km deep · 58 km away
  5. 1.64 km SSE of Bethel, Washington · 13179 days ago · 8 km deep · 98 km away
  6. 2.224 km N of Packwood, Washington · 13179 days ago · -1 km deep · 2 km away
  7. 1.537 km NNE of Amboy, Washington · 13179 days ago · 1 km deep · 78 km away
  8. 2.138 km NNE of Amboy, Washington · 13179 days ago · 0 km deep · 77 km away
  9. 1.838 km NNE of Amboy, Washington · 13179 days ago · 0 km deep · 77 km away
  10. 2.54 km W of Burley, Washington · 13178 days ago · 22 km deep · 98 km away
  11. 1.85 km SSW of Fall City, Washington · 13178 days ago · 14 km deep · 80 km away
  12. 1.637 km NNE of Amboy, Washington · 13175 days ago · 0 km deep · 77 km away
  13. 1.537 km NE of Amboy, Washington · 13175 days ago · 14 km deep · 83 km away
  14. 2.337 km NNE of Amboy, Washington · 13172 days ago · -1 km deep · 78 km away
  15. 2.04 km E of Mossyrock, Washington · 13171 days ago · 20 km deep · 62 km away
  16. 1.717 km ENE of Ashford, Washington · 13170 days ago · -1 km deep · 8 km away
  17. 1.524 km ENE of Ashford, Washington · 13170 days ago · -2 km deep · 5 km away
  18. 1.537 km NNE of Amboy, Washington · 13170 days ago · 5 km deep · 78 km away
  19. 2.7Washington · 13165 days ago · 20 km deep · 8 km away
  20. 2.237 km NNE of Amboy, Washington · 13164 days ago · -2 km deep · 78 km away
  21. 1.525 km ENE of Ashford, Washington · 13162 days ago · -2 km deep · 7 km away
  22. 1.85 km WSW of Snoqualmie, Washington · 13161 days ago · 20 km deep · 79 km away
  23. 1.84 km WNW of Cliffdell, Washington · 13158 days ago · -1 km deep · 49 km away
  24. 2.638 km NNE of Amboy, Washington · 13156 days ago · 0 km deep · 77 km away
  25. 1.638 km NE of Amboy, Washington · 13156 days ago · -1 km deep · 77 km away
  26. 1.60 km ENE of Mercer Island, Washington · 13153 days ago · 20 km deep · 92 km away
  27. 2.019 km S of Morton, Washington · 13148 days ago · 19 km deep · 63 km away
  28. 1.51 km E of Clyde Hill, Washington · 13146 days ago · 24 km deep · 98 km away
  29. 1.83 km SW of Snoqualmie, Washington · 13140 days ago · 19 km deep · 77 km away
  30. 2.027 km ENE of Ashford, Washington · 13139 days ago · -2 km deep · 8 km away
  31. 1.55 km NW of Federal Way, Washington · 13132 days ago · 18 km deep · 77 km away

Before

  1. 1.537 km NNE of Amboy, Washington · 13185 days ago · 3 km deep · 77 km away
  2. 1.61 km S of Normandy Park, Washington · 13188 days ago · 15 km deep · 81 km away
  3. 1.812 km E of Carnation, Washington · 13193 days ago · -1 km deep · 93 km away
  4. 1.73 km E of Union Hill-Novelty Hill, Washington · 13193 days ago · 11 km deep · 98 km away
  5. 2.038 km NNE of Amboy, Washington · 13194 days ago · -2 km deep · 77 km away
  6. 1.512 km NNE of Naches, Washington · 13199 days ago · 13 km deep · 81 km away
  7. 1.72 km SW of North Bend, Washington · 13200 days ago · -1 km deep · 74 km away
  8. 1.737 km NNE of Amboy, Washington · 13205 days ago · -2 km deep · 78 km away
  9. 1.91 km ESE of Pacific, Washington · 13205 days ago · 10 km deep · 62 km away
  10. 2.012 km S of Ashford, Washington · 13207 days ago · 12 km deep · 31 km away
  11. 1.612 km N of Mossyrock, Washington · 13208 days ago · 20 km deep · 60 km away
  12. 1.89 km S of Carbonado, Washington · 13209 days ago · 12 km deep · 32 km away
  13. 3.023 km ENE of Ashford, Washington · 13214 days ago · -1 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10266898. Read Thu, Oct 1, 2026, 6:09 PM UTC.