Washington earthquakes

M1.8 earthquake 38 km NNE of Amboy, Washington

A magnitude 1.8 earthquake struck 38 km NNE of Amboy, Washington on Wed, Mar 28, 1984, 8:39 AM PST (16:39 UTC), -2 km (-1 mi) below the surface.

A larger quake followed: M2.0 38 km NNE of Amboy, 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
1.8 (md), micro
Local time
UTC
1984-03-28 16:39:12 UTC
Depth
-1.5 km (-1.0 mi), shallow
Epicenter
46.207° 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
±0.08
Depth from
Operator assigned
Station coverage gap
88°
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: 137 in the 60 days after this one and 55 in the 30 days before it.

After

  1. 2.038 km NNE of Amboy, Washington · 15518 days ago · 0 km deep · 0 km away
  2. 1.838 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  3. 1.638 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 0 km away
  4. 2.1Washington · 15518 days ago · -1 km deep · 0 km away
  5. 2.038 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  6. 2.038 km NNE of Amboy, Washington · 15518 days ago · 0 km deep · 0 km away
  7. 2.338 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  8. 1.838 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 0 km away
  9. 2.038 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  10. 2.138 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  11. 2.138 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  12. 1.738 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 0 km away
  13. 1.838 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  14. 2.138 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  15. 1.838 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 0 km away
  16. 2.138 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  17. 2.038 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 0 km away
  18. 1.837 km NNE of Amboy, Washington · 15518 days ago · 0 km deep · 1 km away
  19. 1.638 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 1 km away
  20. 1.838 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 0 km away
  21. 1.838 km NNE of Amboy, Washington · 15518 days ago · 0 km deep · 0 km away
  22. 2.137 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 1 km away
  23. 1.838 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 0 km away
  24. 2.238 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 0 km away
  25. 1.838 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  26. 1.838 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  27. 2.138 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  28. 1.638 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  29. 1.738 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  30. 1.938 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  31. 1.738 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  32. 2.238 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  33. 2.238 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  34. 1.838 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  35. 1.638 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  36. 2.338 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  37. 1.738 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  38. 1.738 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  39. 2.238 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  40. 2.038 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  41. 1.538 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  42. 2.738 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  43. 1.738 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  44. 2.938 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  45. 1.938 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  46. 1.838 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  47. 2.338 km S of Morton, Washington · 15517 days ago · -1 km deep · 1 km away
  48. 1.738 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  49. 2.238 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  50. 1.838 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  51. 1.938 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  52. 1.938 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  53. 1.9Washington · 15517 days ago · -1 km deep · 0 km away
  54. 1.538 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  55. 1.538 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  56. 1.838 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 0 km away
  57. 1.738 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  58. 1.938 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  59. 1.638 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away
  60. 1.738 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 0 km away

The first 60 of 137.

Before

  1. 1.838 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  2. 1.938 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  3. 2.238 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  4. 2.038 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  5. 1.938 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  6. 2.038 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  7. 3.038 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  8. 1.638 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  9. 1.838 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 0 km away
  10. 2.038 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  11. 2.138 km NNE of Amboy, Washington · 15518 days ago · 0 km deep · 0 km away
  12. 2.138 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  13. 1.738 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  14. 2.138 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  15. 1.838 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  16. 2.338 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  17. 2.138 km NNE of Amboy, Washington · 15518 days ago · 0 km deep · 0 km away
  18. 1.738 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 0 km away
  19. 1.938 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 0 km away
  20. 2.138 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 1 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10179773. Read Tue, Sep 22, 2026, 9:41 AM UTC.