Washington earthquakes

M1.5 earthquake 3 km WNW of Ashford, Washington

A magnitude 1.5 earthquake struck 3 km WNW of Ashford, Washington on Mon, Mar 31, 1986, 10:28 AM PST (18:28 UTC), 25 km (15 mi) below the surface.

A larger quake followed: M1.7 38 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
1.5 (md), micro
Local time
UTC
1986-03-31 18:28:47 UTC
Depth
24.6 km (15.3 mi), shallow
Epicenter
46.770° N, 122.068° 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 1.5 km horizontally, 2.1 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
144°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 116 in the 60 days after this one and 19 in the 30 days before it.

After

  1. 1.537 km NNE of Amboy, Washington · 14773 days ago · -1 km deep · 64 km away
  2. 1.738 km NNE of Amboy, Washington · 14772 days ago · -1 km deep · 64 km away
  3. 2.739 km NNE of Amboy, Washington · 14770 days ago · -1 km deep · 63 km away
  4. 1.838 km NNE of Amboy, Washington · 14769 days ago · -2 km deep · 64 km away
  5. 2.438 km NNE of Amboy, Washington · 14769 days ago · -1 km deep · 63 km away
  6. 2.538 km NNE of Amboy, Washington · 14767 days ago · -1 km deep · 63 km away
  7. 1.737 km NNE of Amboy, Washington · 14767 days ago · -2 km deep · 64 km away
  8. 1.95 km ESE of Mossyrock, Washington · 14767 days ago · 18 km deep · 38 km away
  9. 2.038 km NNE of Amboy, Washington · 14766 days ago · -1 km deep · 63 km away
  10. 1.538 km NNE of Amboy, Washington · 14765 days ago · 1 km deep · 64 km away
  11. 1.538 km NNE of Amboy, Washington · 14765 days ago · 1 km deep · 64 km away
  12. 1.837 km NNE of Amboy, WA · 14765 days ago · -1 km deep · 65 km away
  13. 1.536 km NNE of Amboy, Washington · 14765 days ago · 1 km deep · 65 km away
  14. 1.938 km NNE of Amboy, Washington · 14765 days ago · -1 km deep · 64 km away
  15. 1.838 km NNE of Amboy, Washington · 14765 days ago · -1 km deep · 64 km away
  16. 1.536 km NNE of Amboy, Washington · 14764 days ago · 1 km deep · 65 km away
  17. 1.938 km NNE of Amboy, Washington · 14764 days ago · -1 km deep · 63 km away
  18. 1.638 km NNE of Amboy, Washington · 14764 days ago · -1 km deep · 64 km away
  19. 2.038 km NNE of Amboy, Washington · 14764 days ago · 1 km deep · 63 km away
  20. 1.538 km NNE of Amboy, Washington · 14762 days ago · -2 km deep · 64 km away
  21. 2.237 km NNE of Amboy, Washington · 14761 days ago · 0 km deep · 64 km away
  22. 1.623 km W of Cliffdell, Washington · 14759 days ago · 3 km deep · 55 km away
  23. 2.838 km NNE of Amboy, Washington · 14758 days ago · -2 km deep · 63 km away
  24. 1.938 km NNE of Amboy, Washington · 14757 days ago · -1 km deep · 64 km away
  25. 1.51 km WNW of North Bend, Washington · 14757 days ago · 16 km deep · 84 km away
  26. 2.038 km NNE of Amboy, Washington · 14756 days ago · -1 km deep · 64 km away
  27. 1.638 km NNE of Amboy, Washington · 14756 days ago · -1 km deep · 63 km away
  28. 1.837 km NNE of Amboy, Washington · 14754 days ago · 0 km deep · 64 km away
  29. 1.937 km NNE of Amboy, Washington · 14754 days ago · 0 km deep · 64 km away
  30. 2.125 km S of Morton, Washington · 14752 days ago · 10 km deep · 51 km away
  31. 2.038 km NNE of Amboy, Washington · 14752 days ago · 0 km deep · 64 km away
  32. 1.537 km NNE of Amboy, Washington · 14751 days ago · 0 km deep · 64 km away
  33. 1.538 km NNE of Amboy, Washington · 14751 days ago · -1 km deep · 64 km away
  34. 1.537 km NNE of Amboy, Washington · 14751 days ago · 0 km deep · 64 km away
  35. 1.538 km NNE of Amboy, Washington · 14751 days ago · 0 km deep · 64 km away
  36. 1.538 km NNE of Amboy, Washington · 14751 days ago · 0 km deep · 64 km away
  37. 2.637 km NNE of Amboy, Washington · 14751 days ago · 0 km deep · 64 km away
  38. 2.738 km NNE of Amboy, Washington · 14751 days ago · 0 km deep · 64 km away
  39. 2.038 km NNE of Amboy, Washington · 14750 days ago · 0 km deep · 64 km away
  40. 1.637 km NNE of Amboy, Washington · 14750 days ago · 0 km deep · 64 km away
  41. 1.738 km NNE of Amboy, Washington · 14750 days ago · 0 km deep · 64 km away
  42. 2.037 km NNE of Amboy, Washington · 14750 days ago · 0 km deep · 64 km away
  43. 2.037 km NNE of Amboy, Washington · 14750 days ago · 0 km deep · 64 km away
  44. 1.638 km NNE of Amboy, Washington · 14749 days ago · 0 km deep · 63 km away
  45. 1.838 km NNE of Amboy, Washington · 14749 days ago · 0 km deep · 64 km away
  46. 1.838 km NNE of Amboy, Washington · 14749 days ago · 0 km deep · 64 km away
  47. 1.837 km NNE of Amboy, Washington · 14749 days ago · 0 km deep · 64 km away
  48. 2.637 km NNE of Amboy, Washington · 14749 days ago · 0 km deep · 64 km away
  49. 2.237 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  50. 2.738 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  51. 1.837 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  52. 2.638 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  53. 2.237 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  54. 1.937 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  55. 1.837 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  56. 2.437 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  57. 2.237 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  58. 2.737 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  59. 2.437 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away
  60. 2.238 km NNE of Amboy, Washington · 14748 days ago · 0 km deep · 64 km away

The first 60 of 116.

Before

  1. 2.40 km ESE of Clyde Hill, Washington · 14785 days ago · 24 km deep · 96 km away
  2. 1.83 km ENE of East Renton Highlands, Washington · 14787 days ago · 0 km deep · 81 km away
  3. 1.77 km SSW of Snoqualmie Pass, Washington · 14789 days ago · 13 km deep · 78 km away
  4. 1.6Washington · 14790 days ago · 4 km deep · 33 km away
  5. 1.86 km SSW of Morton, Washington · 14792 days ago · 19 km deep · 35 km away
  6. 1.92 km SE of Buckley, Washington · 14792 days ago · 10 km deep · 42 km away
  7. 1.538 km NNE of Amboy, Washington · 14797 days ago · -1 km deep · 64 km away
  8. 1.538 km NNE of Amboy, Washington · 14800 days ago · -2 km deep · 64 km away
  9. 1.95 km SW of La Grande, Washington · 14802 days ago · -1 km deep · 23 km away
  10. 1.833 km NE of Amboy, Washington · 14804 days ago · 3 km deep · 74 km away
  11. 3.14 km NE of Amboy, Washington · 14805 days ago · 13 km deep · 96 km away
  12. 2.94 km NNE of Ruston, Washington · 14805 days ago · 7 km deep · 70 km away
  13. 2.437 km NNE of Amboy, Washington · 14806 days ago · -1 km deep · 64 km away
  14. 2.03 km ESE of Key Center, Washington · 14808 days ago · 13 km deep · 79 km away
  15. 2.638 km NNE of Amboy, Washington · 14809 days ago · -2 km deep · 63 km away
  16. 1.838 km NNE of Amboy, Washington · 14811 days ago · -2 km deep · 64 km away
  17. 2.04 km NE of Snoqualmie, Washington · 14813 days ago · 10 km deep · 90 km away
  18. 1.738 km NNE of Amboy, Washington · 14813 days ago · -1 km deep · 64 km away
  19. 2.13 km SSE of Klahanie, Washington · 14814 days ago · 15 km deep · 86 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10206203. Read Tue, Sep 22, 2026, 9:14 AM UTC.