Washington earthquakes

M1.8 earthquake Washington

A magnitude 1.8 earthquake struck in Washington on Mon, Aug 7, 1989, 3:03 PM PDT (22:03 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.7 37 km NNE of Amboy, 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
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1989-08-07 22:03:26 UTC
Depth
-1.0 km (-0.6 mi), shallow
Epicenter
46.842° N, 121.791° 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 1.4 km horizontally, 0.1 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
163°
Stations used
5

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 12 in the 30 days before it.

After

  1. 1.538 km NNE of Amboy, Washington · 13568 days ago · -2 km deep · 77 km away
  2. 1.638 km NNE of Amboy, Washington · 13563 days ago · -2 km deep · 77 km away
  3. 2.337 km NNE of Amboy, Washington · 13563 days ago · 0 km deep · 78 km away
  4. 1.94 km NNE of Snoqualmie, Washington · 13562 days ago · 9 km deep · 80 km away
  5. 1.89 km E of Ashford, Washington · 13562 days ago · 2 km deep · 13 km away
  6. 1.923 km ENE of Ashford, Washington · 13562 days ago · -2 km deep · 3 km away
  7. 1.814 km ENE of Enumclaw, Washington · 13561 days ago · 15 km deep · 44 km away
  8. 2.124 km ENE of Ashford, Washington · 13560 days ago · -1 km deep · 4 km away
  9. 1.724 km ENE of Ashford, Washington · 13559 days ago · -2 km deep · 4 km away
  10. 1.938 km NNE of Amboy, Washington · 13557 days ago · -1 km deep · 77 km away
  11. 1.64 km ESE of Newcastle, Washington · 13554 days ago · 9 km deep · 80 km away
  12. 2.737 km NNE of Amboy, Washington · 13551 days ago · -2 km deep · 78 km away
  13. 1.737 km NNE of Amboy, Washington · 13551 days ago · -1 km deep · 78 km away
  14. 1.737 km NNE of Amboy, Washington · 13551 days ago · -2 km deep · 78 km away
  15. 1.737 km NNE of Amboy, Washington · 13551 days ago · -2 km deep · 78 km away
  16. 1.938 km NNE of Amboy, Washington · 13539 days ago · -2 km deep · 77 km away
  17. 2.524 km ENE of Ashford, Washington · 13538 days ago · -2 km deep · 4 km away
  18. 2.124 km ENE of Ashford, Washington · 13538 days ago · -2 km deep · 4 km away
  19. 1.90 km NE of Edgewood, Washington · 13537 days ago · 6 km deep · 59 km away
  20. 1.526 km SSE of Mossyrock, Washington · 13536 days ago · 0 km deep · 75 km away
  21. 1.629 km SSE of Mossyrock, Washington · 13536 days ago · 5 km deep · 78 km away
  22. 1.76 km NE of Hobart, Washington · 13535 days ago · 10 km deep · 69 km away
  23. 1.85 km ENE of Lake Marcel-Stillwater, Washington · 13534 days ago · -1 km deep · 97 km away
  24. 2.06 km ESE of McKenna, Washington · 13531 days ago · 21 km deep · 52 km away
  25. 1.529 km SW of Nile, Washington · 13531 days ago · 2 km deep · 45 km away
  26. 2.023 km S of Morton, Washington · 13530 days ago · 8 km deep · 65 km away
  27. 1.529 km ENE of Kelso, Washington · 13530 days ago · -1 km deep · 91 km away
  28. 2.136 km SSE of Morton, Washington · 13524 days ago · 6 km deep · 70 km away
  29. 1.61 km S of Issaquah, Washington · 13522 days ago · -1 km deep · 77 km away
  30. 1.64 km NE of Key Center, Washington · 13520 days ago · 21 km deep · 91 km away
  31. 2.523 km ENE of Ashford, Washington · 13509 days ago · -2 km deep · 3 km away

Before

  1. 1.913 km E of Wilkeson, Washington · 13569 days ago · 7 km deep · 29 km away
  2. 2.40 km N of Cliffdell, Washington · 13575 days ago · 5 km deep · 56 km away
  3. 1.537 km S of Morton, Washington · 13575 days ago · -1 km deep · 78 km away
  4. 1.71 km SW of Issaquah, Washington · 13578 days ago · -1 km deep · 78 km away
  5. 2.18 km NE of Snoqualmie, Washington · 13578 days ago · 5 km deep · 83 km away
  6. 1.92 km ESE of Grapeview, Washington · 13578 days ago · 17 km deep · 93 km away
  7. 1.518 km NNE of Ashford, Washington · 13581 days ago · 10 km deep · 15 km away
  8. 1.71 km SE of Kapowsin, Washington · 13582 days ago · 13 km deep · 35 km away
  9. 2.28 km NNW of Tieton, Washington · 13582 days ago · 0 km deep · 76 km away
  10. 1.510 km NNW of Tieton, Washington · 13582 days ago · 5 km deep · 74 km away
  11. 2.912 km WSW of Packwood, Washington · 13586 days ago · 2 km deep · 33 km away
  12. 1.838 km NNE of Amboy, Washington · 13597 days ago · 2 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10246588. Read Thu, Oct 1, 2026, 10:39 AM UTC.