Washington earthquakes

M3.1 earthquake 12 km S of Morton, Washington

A magnitude 3.1 earthquake struck 12 km S of Morton, Washington on Sun, Aug 5, 1984, 12:11 PM PDT (19:11 UTC), 10 km (6 mi) below the surface.

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
3.1 (md), minor
Local time
UTC
1984-08-05 19:11:50 UTC
Depth
10.4 km (6.5 mi), shallow
Epicenter
46.447° N, 122.261° 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 0.7 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
74°
Stations used
44

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 75 in the 60 days after this one and 27 in the 30 days before it.

After

  1. 1.92 km NW of Lakeland South, Washington · 15393 days ago · 9 km deep · 94 km away
  2. 1.738 km NNE of Amboy, Washington · 15392 days ago · -1 km deep · 28 km away
  3. 1.7Washington · 15390 days ago · 15 km deep · 20 km away
  4. 2.138 km NNE of Amboy, Washington · 15389 days ago · -1 km deep · 28 km away
  5. 2.138 km NNE of Amboy, Washington · 15388 days ago · -1 km deep · 28 km away
  6. 1.838 km NNE of Amboy, Washington · 15388 days ago · -2 km deep · 27 km away
  7. 1.838 km NNE of Amboy, Washington · 15387 days ago · -1 km deep · 28 km away
  8. 1.838 km NNE of Amboy, Washington · 15384 days ago · -1 km deep · 27 km away
  9. 2.337 km NNE of Amboy, Washington · 15384 days ago · -1 km deep · 28 km away
  10. 1.738 km NNE of Amboy, Washington · 15384 days ago · -2 km deep · 27 km away
  11. 2.038 km NNE of Amboy, Washington · 15382 days ago · -2 km deep · 28 km away
  12. 1.811 km ESE of Black Diamond, Washington · 15382 days ago · 12 km deep · 96 km away
  13. 1.938 km NE of Amboy, Washington · 15378 days ago · -2 km deep · 29 km away
  14. 1.538 km NNE of Amboy, Washington · 15377 days ago · -2 km deep · 28 km away
  15. 2.337 km NNE of Amboy, Washington · 15377 days ago · -1 km deep · 28 km away
  16. 2.037 km NNE of Amboy, Washington · 15376 days ago · -1 km deep · 28 km away
  17. 2.22 km ENE of Brush Prairie, Washington · 15376 days ago · 15 km deep · 81 km away
  18. 1.938 km NNE of Amboy, Washington · 15374 days ago · -1 km deep · 28 km away
  19. 2.338 km NNE of Amboy, Washington · 15373 days ago · -1 km deep · 28 km away
  20. 1.638 km NNE of Amboy, Washington · 15372 days ago · -1 km deep · 27 km away
  21. 1.838 km NNE of Amboy, Washington · 15370 days ago · -2 km deep · 28 km away
  22. 1.538 km NNE of Amboy, Washington · 15370 days ago · -1 km deep · 28 km away
  23. 1.638 km NNE of Amboy, Washington · 15370 days ago · -1 km deep · 28 km away
  24. 2.438 km NNE of Amboy, Washington · 15370 days ago · -1 km deep · 28 km away
  25. 1.838 km NNE of Amboy, Washington · 15370 days ago · -1 km deep · 27 km away
  26. 1.720 km S of Morton, Washington · 15370 days ago · 8 km deep · 8 km away
  27. 2.338 km NNE of Amboy, Washington · 15370 days ago · -1 km deep · 28 km away
  28. 2.438 km NNE of Amboy, Washington · 15370 days ago · -2 km deep · 27 km away
  29. 1.938 km NNE of Amboy, Washington · 15369 days ago · -1 km deep · 27 km away
  30. 1.638 km NNE of Amboy, Washington · 15368 days ago · -1 km deep · 28 km away
  31. 2.038 km NNE of Amboy, Washington · 15368 days ago · -1 km deep · 28 km away
  32. 1.538 km NNE of Amboy, Washington · 15367 days ago · -2 km deep · 27 km away
  33. 1.51 km SSE of Ridgefield, Washington · 15367 days ago · 10 km deep · 81 km away
  34. 1.638 km NNE of Amboy, Washington · 15367 days ago · -2 km deep · 28 km away
  35. 1.538 km NNE of Amboy, Washington · 15367 days ago · 0 km deep · 27 km away
  36. 1.538 km NNE of Amboy, Washington · 15367 days ago · -1 km deep · 28 km away
  37. 2.238 km NNE of Amboy, Washington · 15366 days ago · -1 km deep · 28 km away
  38. 1.638 km NNE of Amboy, Washington · 15366 days ago · -2 km deep · 27 km away
  39. 1.9Washington · 15366 days ago · -1 km deep · 27 km away
  40. 1.638 km NNE of Amboy, Washington · 15365 days ago · -1 km deep · 27 km away
  41. 1.938 km NNE of Amboy, Washington · 15365 days ago · -1 km deep · 28 km away
  42. 1.812 km WNW of Greenwater, Washington · 15365 days ago · 16 km deep · 92 km away
  43. 2.138 km NNE of Amboy, Washington · 15365 days ago · -1 km deep · 28 km away
  44. 1.538 km NNE of Amboy, Washington · 15365 days ago · -1 km deep · 28 km away
  45. 1.538 km NNE of Amboy, Washington · 15364 days ago · -2 km deep · 27 km away
  46. 1.838 km NNE of Amboy, Washington · 15363 days ago · 0 km deep · 28 km away
  47. 2.538 km NNE of Amboy, Washington · 15363 days ago · -2 km deep · 27 km away
  48. 1.738 km NNE of Amboy, Washington · 15362 days ago · -2 km deep · 28 km away
  49. 1.838 km NNE of Amboy, Washington · 15362 days ago · -2 km deep · 28 km away
  50. 1.738 km NNE of Amboy, Washington · 15361 days ago · -1 km deep · 27 km away
  51. 1.838 km NNE of Amboy, Washington · 15361 days ago · -2 km deep · 27 km away
  52. 1.837 km NNE of Amboy, Washington · 15361 days ago · 0 km deep · 28 km away
  53. 1.838 km NNE of Amboy, Washington · 15361 days ago · -2 km deep · 27 km away
  54. 1.538 km NNE of Amboy, Washington · 15361 days ago · -1 km deep · 27 km away
  55. 1.738 km NNE of Amboy, Washington · 15361 days ago · -1 km deep · 27 km away
  56. 1.538 km NNE of Amboy, Washington · 15360 days ago · -1 km deep · 27 km away
  57. 1.838 km NNE of Amboy, Washington · 15360 days ago · -1 km deep · 28 km away
  58. 1.738 km NNE of Amboy, Washington · 15360 days ago · -2 km deep · 27 km away
  59. 1.838 km NNE of Amboy, Washington · 15360 days ago · -2 km deep · 27 km away
  60. 1.838 km NNE of Amboy, Washington · 15360 days ago · -1 km deep · 27 km away

The first 60 of 75.

Before

  1. 1.513 km NW of Amboy, Washington · 15400 days ago · 10 km deep · 58 km away
  2. 1.938 km NNE of Amboy, Washington · 15400 days ago · -1 km deep · 28 km away
  3. 1.838 km NNE of Amboy, Washington · 15401 days ago · -1 km deep · 28 km away
  4. 2.237 km NNE of Amboy, Washington · 15401 days ago · -1 km deep · 28 km away
  5. 1.638 km NNE of Amboy, Washington · 15402 days ago · -1 km deep · 28 km away
  6. 1.72 km NE of Brush Prairie, Washington · 15402 days ago · 15 km deep · 80 km away
  7. 1.734 km NE of Amboy, Washington · 15402 days ago · 8 km deep · 33 km away
  8. 1.837 km NNE of Amboy, Washington · 15404 days ago · -1 km deep · 28 km away
  9. 1.638 km NNE of Amboy, Washington · 15406 days ago · -1 km deep · 27 km away
  10. 2.437 km NE of Amboy, Washington · 15406 days ago · -1 km deep · 29 km away
  11. 2.238 km NNE of Amboy, Washington · 15406 days ago · -1 km deep · 27 km away
  12. 1.82 km NW of Hockinson, Washington · 15407 days ago · 15 km deep · 79 km away
  13. 2.038 km NNE of Amboy, Washington · 15408 days ago · -1 km deep · 27 km away
  14. 2.238 km NNE of Amboy, Washington · 15408 days ago · -1 km deep · 27 km away
  15. 2.038 km NNE of Amboy, Washington · 15408 days ago · -1 km deep · 28 km away
  16. 1.738 km NNE of Amboy, Washington · 15408 days ago · -1 km deep · 28 km away
  17. 1.838 km NNE of Amboy, Washington · 15411 days ago · -1 km deep · 27 km away
  18. 2.538 km NNE of Amboy, Washington · 15412 days ago · -1 km deep · 28 km away
  19. 1.937 km NNE of Amboy, Washington · 15413 days ago · 1 km deep · 28 km away
  20. 2.814 km S of Morton, Washington · 15416 days ago · 14 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10177938. Read Wed, Sep 30, 2026, 2:23 AM UTC.