Washington earthquakes

M1.5 earthquake 22 km ENE of Ashford, Washington

A magnitude 1.5 earthquake struck 22 km ENE of Ashford, Washington on Fri, Apr 6, 1990, 10:03 PM PDT (05:03 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.9 13 km SSW of Morton, 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
1.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-04-07 05:03:50 UTC
Depth
-1.3 km (-0.8 mi), shallow
Epicenter
46.845° N, 121.766° 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 0.3 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
61°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 33 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.32 km SE of Maple Heights-Lake Desire, Washington · 13322 days ago · 19 km deep · 69 km away
  2. 2.32 km SE of Maple Heights-Lake Desire, Washington · 13322 days ago · 16 km deep · 68 km away
  3. 1.829 km SSW of White Swan, Washington · 13319 days ago · 0 km deep · 100 km away
  4. 2.329 km SSW of White Swan, Washington · 13319 days ago · -1 km deep · 99 km away
  5. 1.510 km E of Ashford, Washington · 13319 days ago · 7 km deep · 13 km away
  6. 1.838 km NNE of Amboy, Washington · 13318 days ago · -2 km deep · 79 km away
  7. 1.814 km SE of Mossyrock, Washington · 13318 days ago · 17 km deep · 66 km away
  8. 1.56 km W of Burley, Washington · 13310 days ago · 19 km deep · 95 km away
  9. 2.19 km W of Packwood, Washington · 13308 days ago · 8 km deep · 28 km away
  10. 2.410 km W of Packwood, Washington · 13308 days ago · 7 km deep · 28 km away
  11. 1.837 km NNE of Amboy, Washington · 13307 days ago · -2 km deep · 79 km away
  12. 1.538 km NNE of Amboy, Washington · 13305 days ago · -2 km deep · 79 km away
  13. 2.138 km NNE of Amboy, Washington · 13302 days ago · 2 km deep · 79 km away
  14. 2.237 km NNE of Amboy, Washington · 13299 days ago · 3 km deep · 79 km away
  15. 2.337 km NNE of Amboy, Washington · 13299 days ago · 3 km deep · 79 km away
  16. 1.727 km ENE of Ashford, Washington · 13299 days ago · -2 km deep · 6 km away
  17. 1.538 km NNE of Amboy, Washington · 13290 days ago · -2 km deep · 79 km away
  18. 2.913 km SSW of Morton, Washington · 13285 days ago · 18 km deep · 63 km away
  19. 1.514 km NE of Ashford, Washington · 13285 days ago · 7 km deep · 9 km away
  20. 2.03 km SSW of Rosedale, Washington · 13283 days ago · 26 km deep · 86 km away
  21. 2.224 km S of Morton, Washington · 13283 days ago · 3 km deep · 66 km away
  22. 2.215 km WSW of Ellensburg, Washington · 13280 days ago · 4 km deep · 80 km away
  23. 2.623 km ENE of Ashford, Washington · 13279 days ago · -2 km deep · 1 km away
  24. 1.823 km S of Morton, Washington · 13278 days ago · 11 km deep · 67 km away
  25. 1.92 km ESE of Alder, Washington · 13278 days ago · 17 km deep · 39 km away
  26. 1.63 km ENE of Burley, Washington · 13277 days ago · 42 km deep · 90 km away
  27. 1.838 km NNE of Amboy, Washington · 13277 days ago · -1 km deep · 78 km away
  28. 1.737 km NNE of Amboy, Washington · 13274 days ago · -2 km deep · 79 km away
  29. 1.838 km NNE of Amboy, Washington · 13273 days ago · -2 km deep · 78 km away
  30. 1.738 km NNE of Amboy, Washington · 13272 days ago · -2 km deep · 78 km away
  31. 1.738 km NNE of Amboy, Washington · 13272 days ago · -1 km deep · 78 km away
  32. 2.023 km ENE of Ashford, Washington · 13271 days ago · -1 km deep · 1 km away
  33. 2.0Washington · 13270 days ago · 0 km deep · 78 km away

Before

  1. 1.910 km ENE of Snoqualmie, Washington · 13327 days ago · 12 km deep · 81 km away
  2. 2.637 km NNE of Amboy, Washington · 13328 days ago · -2 km deep · 79 km away
  3. 1.538 km NNE of Amboy, Washington · 13330 days ago · 3 km deep · 79 km away
  4. 2.14 km WSW of Rosedale, Washington · 13331 days ago · 23 km deep · 88 km away
  5. 1.52 km NNE of Tanner, Washington · 13335 days ago · 14 km deep · 72 km away
  6. 3.013 km NE of Ashford, Washington · 13339 days ago · 9 km deep · 11 km away
  7. 3.0Puget Sound region, Washington · 13347 days ago · 6 km deep · 67 km away
  8. 1.51 km ESE of Maple Heights-Lake Desire, Washington · 13348 days ago · 15 km deep · 70 km away
  9. 1.724 km N of Amboy, Washington · 13349 days ago · 6 km deep · 95 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10256048. Read Thu, Oct 1, 2026, 2:11 PM UTC.