Washington earthquakes

M1.7 earthquake 14 km SSW of Alder, Washington

A magnitude 1.7 earthquake struck 14 km SSW of Alder, Washington on Thu, Mar 29, 1984, 3:32 PM PST (23:32 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M1.9 39 km NNE of Amboy, Washington. This one was a foreshock.

Morton 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
1.7 (md), micro
Local time
UTC
1984-03-29 23:32:39 UTC
Depth
3.6 km (2.3 mi), shallow
Epicenter
46.691° N, 122.381° 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 0.6 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.16
Depth from
Operator assigned
Station coverage gap
139°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 85 in the 60 days after this one and 107 in the 30 days before it.

After

  1. 1.638 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  2. 1.638 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  3. 1.939 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 55 km away
  4. 1.738 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  5. 1.939 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 55 km away
  6. 1.838 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 55 km away
  7. 1.738 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  8. 1.738 km NNE of Amboy, Washington · 15516 days ago · -1 km deep · 56 km away
  9. 2.238 km NNE of Amboy, Washington · 15516 days ago · -1 km deep · 56 km away
  10. 1.738 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  11. 2.038 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  12. 1.938 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 55 km away
  13. 1.938 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  14. 1.538 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  15. 2.238 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  16. 1.738 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  17. 1.938 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  18. 1.838 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  19. 1.638 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  20. 1.738 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  21. 2.039 km S of Morton, Washington · 15516 days ago · -2 km deep · 55 km away
  22. 1.838 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  23. 2.238 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  24. 2.138 km NNE of Amboy, Washington · 15516 days ago · -1 km deep · 56 km away
  25. 2.138 km NNE of Amboy, Washington · 15516 days ago · -1 km deep · 56 km away
  26. 1.838 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  27. 1.838 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 55 km away
  28. 2.438 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  29. 2.038 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  30. 2.338 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  31. 2.036 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 58 km away
  32. 2.238 km NNE of Amboy, Washington · 15516 days ago · -2 km deep · 56 km away
  33. 1.938 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  34. 2.438 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  35. 1.938 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  36. 2.438 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  37. 2.338 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  38. 1.938 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  39. 2.438 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  40. 2.037 km NNE of Amboy, Washington · 15515 days ago · -1 km deep · 56 km away
  41. 1.838 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  42. 2.038 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  43. 1.838 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  44. 1.638 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  45. 1.738 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  46. 2.238 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  47. 1.838 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  48. 1.838 km NNE of Amboy, Washington · 15515 days ago · -1 km deep · 56 km away
  49. 1.838 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  50. 1.738 km NNE of Amboy, Washington · 15515 days ago · -2 km deep · 56 km away
  51. 2.238 km NNE of Amboy, Washington · 15514 days ago · -2 km deep · 56 km away
  52. 2.238 km NNE of Amboy, Washington · 15514 days ago · -2 km deep · 55 km away
  53. 2.238 km NNE of Amboy, Washington · 15514 days ago · -2 km deep · 56 km away
  54. 2.421 km S of Morton, Washington · 15512 days ago · 8 km deep · 38 km away
  55. 1.93 km WNW of Wauna, Washington · 15511 days ago · 22 km deep · 81 km away
  56. 1.938 km NNE of Amboy, Washington · 15508 days ago · -1 km deep · 56 km away
  57. 3.312 km WSW of La Grande, Washington · 15507 days ago · 66 km deep · 14 km away
  58. 2.016 km SE of Carbonado, Washington · 15507 days ago · 7 km deep · 47 km away
  59. 1.89 km SSE of Onalaska, Washington · 15507 days ago · 17 km deep · 32 km away
  60. 2.038 km NNE of Amboy, Washington · 15507 days ago · 0 km deep · 56 km away

The first 60 of 85.

Before

  1. 1.85 km W of Burley, Washington · 15517 days ago · 23 km deep · 85 km away
  2. 2.138 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 56 km away
  3. 1.738 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 56 km away
  4. 1.738 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 56 km away
  5. 1.638 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 56 km away
  6. 1.938 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 56 km away
  7. 1.738 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 56 km away
  8. 1.838 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 56 km away
  9. 1.538 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 56 km away
  10. 1.538 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 56 km away
  11. 1.9Washington · 15517 days ago · -1 km deep · 56 km away
  12. 1.938 km NNE of Amboy, Washington · 15517 days ago · -2 km deep · 56 km away
  13. 1.938 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 56 km away
  14. 1.838 km NNE of Amboy, Washington · 15517 days ago · -1 km deep · 56 km away
  15. 2.238 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 56 km away
  16. 1.738 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 56 km away
  17. 2.338 km S of Morton, Washington · 15518 days ago · -1 km deep · 54 km away
  18. 1.838 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 56 km away
  19. 1.938 km NNE of Amboy, Washington · 15518 days ago · -2 km deep · 56 km away
  20. 2.938 km NNE of Amboy, Washington · 15518 days ago · -1 km deep · 56 km away

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From the USGS Earthquake Hazards Program and its partner networks, event uw10181918. Read Tue, Sep 22, 2026, 4:04 PM UTC.