Washington earthquakes

M1.5 earthquake 38 km NNE of Amboy, Washington

A magnitude 1.5 earthquake struck 38 km NNE of Amboy, Washington on Mon, May 20, 1985, 8:52 AM PDT (15:52 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M3.2 30 km SW of White Swan, Washington. This one was a foreshock.

Amboy 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
1.5 (md), micro
Local time
UTC
1985-05-20 15:52:01 UTC
Depth
-1.4 km (-0.9 mi), shallow
Epicenter
46.209° N, 122.188° 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
±0.10
Depth from
Operator assigned
Station coverage gap
85°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 201 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 1.638 km NNE of Amboy, Washington · 15107 days ago · -1 km deep · 0 km away
  2. 1.638 km NNE of Amboy, Washington · 15107 days ago · -1 km deep · 0 km away
  3. 1.938 km NNE of Amboy, Washington · 15107 days ago · -1 km deep · 0 km away
  4. 1.638 km NNE of Amboy, Washington · 15107 days ago · -1 km deep · 0 km away
  5. 1.638 km NNE of Amboy, Washington · 15107 days ago · -1 km deep · 1 km away
  6. 1.637 km NNE of Amboy, Washington · 15107 days ago · -1 km deep · 1 km away
  7. 1.738 km NNE of Amboy, Washington · 15106 days ago · -1 km deep · 1 km away
  8. 1.538 km NNE of Amboy, Washington · 15106 days ago · -1 km deep · 0 km away
  9. 1.738 km NNE of Amboy, Washington · 15106 days ago · -1 km deep · 0 km away
  10. 2.237 km NNE of Amboy, Washington · 15106 days ago · 1 km deep · 1 km away
  11. 1.737 km NNE of Amboy, Washington · 15106 days ago · -2 km deep · 1 km away
  12. 1.538 km NNE of Amboy, Washington · 15106 days ago · -2 km deep · 1 km away
  13. 1.838 km NNE of Amboy, Washington · 15106 days ago · -2 km deep · 1 km away
  14. 1.938 km NNE of Amboy, Washington · 15105 days ago · -2 km deep · 1 km away
  15. 1.637 km NNE of Amboy, Washington · 15105 days ago · 0 km deep · 1 km away
  16. 1.838 km NNE of Amboy, Washington · 15105 days ago · 0 km deep · 0 km away
  17. 1.638 km NNE of Amboy, Washington · 15105 days ago · -1 km deep · 1 km away
  18. 2.538 km NNE of Amboy, Washington · 15105 days ago · -1 km deep · 1 km away
  19. 1.538 km NNE of Amboy, Washington · 15105 days ago · -1 km deep · 1 km away
  20. 1.838 km NNE of Amboy, Washington · 15104 days ago · -1 km deep · 1 km away
  21. 2.238 km NNE of Amboy, Washington · 15104 days ago · -1 km deep · 1 km away
  22. 2.038 km NNE of Amboy, Washington · 15104 days ago · -2 km deep · 1 km away
  23. 2.038 km NNE of Amboy, Washington · 15104 days ago · -1 km deep · 1 km away
  24. 1.738 km NNE of Amboy, Washington · 15104 days ago · -2 km deep · 1 km away
  25. 1.838 km NNE of Amboy, Washington · 15104 days ago · -1 km deep · 1 km away
  26. 1.638 km NNE of Amboy, Washington · 15104 days ago · -2 km deep · 0 km away
  27. 1.538 km NNE of Amboy, Washington · 15104 days ago · -2 km deep · 1 km away
  28. 2.0Washington · 15104 days ago · -1 km deep · 1 km away
  29. 1.638 km S of Morton, Washington · 15104 days ago · -2 km deep · 0 km away
  30. 2.038 km NNE of Amboy, Washington · 15104 days ago · -2 km deep · 1 km away
  31. 1.538 km NNE of Amboy, Washington · 15104 days ago · -2 km deep · 1 km away
  32. 2.238 km NNE of Amboy, Washington · 15104 days ago · -2 km deep · 1 km away
  33. 1.538 km NNE of Amboy, Washington · 15103 days ago · -2 km deep · 1 km away
  34. 2.638 km NNE of Amboy, Washington · 15103 days ago · -1 km deep · 1 km away
  35. 2.138 km NNE of Amboy, Washington · 15103 days ago · -1 km deep · 1 km away
  36. 1.538 km NNE of Amboy, Washington · 15103 days ago · -2 km deep · 1 km away
  37. 1.638 km NNE of Amboy, Washington · 15103 days ago · -1 km deep · 1 km away
  38. 1.537 km NNE of Amboy, Washington · 15103 days ago · -1 km deep · 2 km away
  39. 1.638 km S of Morton, Washington · 15102 days ago · -1 km deep · 1 km away
  40. 1.738 km NNE of Amboy, Washington · 15102 days ago · -1 km deep · 1 km away
  41. 1.538 km NNE of Amboy, Washington · 15102 days ago · -1 km deep · 1 km away
  42. 1.538 km NNE of Amboy, Washington · 15102 days ago · -2 km deep · 1 km away
  43. 1.538 km NNE of Amboy, Washington · 15102 days ago · -2 km deep · 1 km away
  44. 1.638 km NNE of Amboy, Washington · 15102 days ago · -2 km deep · 0 km away
  45. 1.538 km NNE of Amboy, Washington · 15102 days ago · -2 km deep · 0 km away
  46. 1.538 km NNE of Amboy, Washington · 15102 days ago · -2 km deep · 1 km away
  47. 1.538 km NNE of Amboy, Washington · 15102 days ago · -2 km deep · 0 km away
  48. 1.838 km NNE of Amboy, Washington · 15102 days ago · -1 km deep · 1 km away
  49. 1.538 km NNE of Amboy, Washington · 15102 days ago · -2 km deep · 0 km away
  50. 1.538 km NNE of Amboy, Washington · 15102 days ago · -2 km deep · 1 km away
  51. 1.737 km NNE of Amboy, Washington · 15102 days ago · -2 km deep · 1 km away
  52. 1.5Washington · 15102 days ago · -2 km deep · 1 km away
  53. 1.738 km NNE of Amboy, Washington · 15101 days ago · -1 km deep · 1 km away
  54. 1.537 km NNE of Amboy, Washington · 15101 days ago · -2 km deep · 1 km away
  55. 1.537 km NNE of Amboy, Washington · 15101 days ago · -1 km deep · 1 km away
  56. 1.537 km NNE of Amboy, Washington · 15101 days ago · -2 km deep · 1 km away
  57. 1.637 km NNE of Amboy, Washington · 15101 days ago · -1 km deep · 1 km away
  58. 1.537 km NNE of Amboy, Washington · 15101 days ago · -2 km deep · 1 km away
  59. 1.537 km NNE of Amboy, Washington · 15101 days ago · -2 km deep · 1 km away
  60. 1.537 km NNE of Amboy, Washington · 15101 days ago · -1 km deep · 1 km away

The first 60 of 201.

Before

  1. 1.838 km NNE of Amboy, Washington · 15108 days ago · -1 km deep · 1 km away
  2. 1.538 km NNE of Amboy, Washington · 15109 days ago · -1 km deep · 1 km away
  3. 1.838 km NNE of Amboy, Washington · 15109 days ago · -1 km deep · 1 km away
  4. 1.522 km S of Morton, Washington · 15109 days ago · 11 km deep · 17 km away
  5. 1.638 km NNE of Amboy, Washington · 15112 days ago · -1 km deep · 0 km away
  6. 1.523 km ENE of Ashford, Washington · 15115 days ago · 2 km deep · 79 km away
  7. 2.139 km NNE of Amboy, Washington · 15117 days ago · -1 km deep · 1 km away
  8. 1.814 km NNE of Ashford, Washington · 15118 days ago · 6 km deep · 76 km away
  9. 2.79 km WSW of Packwood, Washington · 15119 days ago · 9 km deep · 51 km away
  10. 1.738 km NNE of Amboy, Washington · 15123 days ago · -1 km deep · 0 km away
  11. 1.75 km WSW of Packwood, Washington · 15124 days ago · 12 km deep · 55 km away
  12. 2.336 km NNE of Amboy, Washington · 15126 days ago · -1 km deep · 3 km away
  13. 2.438 km NNE of Amboy, Washington · 15126 days ago · -1 km deep · 1 km away
  14. 1.638 km NNE of Amboy, Washington · 15127 days ago · -1 km deep · 0 km away
  15. 2.022 km S of Morton, Washington · 15127 days ago · 10 km deep · 17 km away
  16. 2.622 km S of Morton, Washington · 15127 days ago · 9 km deep · 17 km away
  17. 2.111 km WSW of Mineral, Washington · 15132 days ago · 18 km deep · 52 km away
  18. 2.017 km SSE of Carbonado, Washington · 15134 days ago · 13 km deep · 82 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10190803. Read Tue, Sep 29, 2026, 9:53 PM UTC.