Washington earthquakes

M2.1 earthquake 30 km SSE of Morton, Washington

A magnitude 2.1 earthquake struck 30 km SSE of Morton, Washington on Wed, Feb 4, 1981, 10:06 AM PST (18:06 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M2.9 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
2.1 (md), micro
Local time
UTC
1981-02-04 18:06:39 UTC
Depth
19.5 km (12.1 mi), shallow
Epicenter
46.305° N, 122.125° 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 4.9 km horizontally, 4.1 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
309°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 132 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 2.137 km NNE of Amboy, Washington · 16665 days ago · 1 km deep · 13 km away
  2. 2.9Washington · 16665 days ago · 0 km deep · 11 km away
  3. 2.437 km S of Morton, Washington · 16665 days ago · 0 km deep · 10 km away
  4. 2.2Washington · 16665 days ago · -1 km deep · 14 km away
  5. 2.540 km SSE of Morton, Washington · 16665 days ago · -1 km deep · 11 km away
  6. 2.938 km S of Morton, Washington · 16665 days ago · -1 km deep · 11 km away
  7. 2.935 km NNE of Amboy, Washington · 16665 days ago · 0 km deep · 16 km away
  8. 3.0Washington · 16664 days ago · 1 km deep · 12 km away
  9. 2.738 km NNE of Amboy, Washington · 16664 days ago · -1 km deep · 12 km away
  10. 2.9Washington · 16664 days ago · -1 km deep · 11 km away
  11. 2.738 km S of Morton, Washington · 16664 days ago · -1 km deep · 11 km away
  12. 2.337 km S of Morton, Washington · 16664 days ago · -1 km deep · 10 km away
  13. 2.637 km SSE of Morton, Washington · 16664 days ago · 0 km deep · 7 km away
  14. 2.738 km NNE of Amboy, Washington · 16664 days ago · -1 km deep · 12 km away
  15. 2.638 km NNE of Amboy, Washington · 16664 days ago · -1 km deep · 12 km away
  16. 2.637 km NNE of Amboy, Washington · 16664 days ago · -1 km deep · 13 km away
  17. 2.342 km NE of Amboy, Washington · 16664 days ago · 6 km deep · 13 km away
  18. 2.629 km NNE of Amboy, Washington · 16664 days ago · 10 km deep · 21 km away
  19. 1.814 km SW of Alder, Washington · 16664 days ago · 20 km deep · 50 km away
  20. 2.434 km NNE of Amboy, Washington · 16662 days ago · -1 km deep · 16 km away
  21. 2.526 km S of Morton, Washington · 16658 days ago · 2 km deep · 7 km away
  22. 1.925 km SSE of Morton, Washington · 16658 days ago · 2 km deep · 7 km away
  23. 5.223 km S of Morton, Washington · 16655 days ago · 6 km deep · 10 km away
  24. 3.825 km S of Morton, Washington · 16655 days ago · 8 km deep · 9 km away
  25. 2.225 km S of Morton, Washington · 16655 days ago · 6 km deep · 9 km away
  26. 2.522 km S of Morton, Washington · 16655 days ago · 9 km deep · 11 km away
  27. 2.422 km S of Morton, Washington · 16655 days ago · 6 km deep · 10 km away
  28. 1.823 km S of Morton, Washington · 16655 days ago · 6 km deep · 10 km away
  29. 2.125 km S of Morton, Washington · 16655 days ago · 7 km deep · 9 km away
  30. 2.022 km S of Morton, Washington · 16655 days ago · 7 km deep · 11 km away
  31. 2.023 km S of Morton, Washington · 16655 days ago · 7 km deep · 10 km away
  32. 3.523 km S of Morton, Washington · 16655 days ago · 9 km deep · 10 km away
  33. 3.425 km S of Morton, Washington · 16655 days ago · 11 km deep · 9 km away
  34. 1.723 km S of Morton, Washington · 16655 days ago · 8 km deep · 10 km away
  35. 2.925 km S of Morton, Washington · 16655 days ago · 10 km deep · 9 km away
  36. 1.522 km S of Morton, Washington · 16655 days ago · 8 km deep · 11 km away
  37. 2.421 km S of Morton, Washington · 16655 days ago · 4 km deep · 11 km away
  38. 1.822 km S of Morton, Washington · 16655 days ago · 8 km deep · 11 km away
  39. 1.822 km S of Morton, Washington · 16655 days ago · 7 km deep · 11 km away
  40. 1.922 km S of Morton, Washington · 16655 days ago · 10 km deep · 11 km away
  41. 1.923 km S of Morton, Washington · 16655 days ago · 8 km deep · 10 km away
  42. 3.822 km S of Morton, Washington · 16655 days ago · 10 km deep · 11 km away
  43. 1.822 km S of Morton, Washington · 16655 days ago · 10 km deep · 11 km away
  44. 1.722 km S of Morton, Washington · 16655 days ago · 10 km deep · 11 km away
  45. 1.624 km S of Morton, Washington · 16655 days ago · 10 km deep · 9 km away
  46. 1.922 km S of Morton, Washington · 16655 days ago · 6 km deep · 10 km away
  47. 1.524 km S of Morton, Washington · 16655 days ago · 8 km deep · 9 km away
  48. 2.822 km S of Morton, Washington · 16655 days ago · 8 km deep · 11 km away
  49. 1.622 km S of Morton, Washington · 16655 days ago · 10 km deep · 11 km away
  50. 1.522 km S of Morton, Washington · 16655 days ago · 8 km deep · 11 km away
  51. 2.025 km S of Morton, Washington · 16655 days ago · 10 km deep · 9 km away
  52. 1.724 km S of Morton, Washington · 16655 days ago · 7 km deep · 9 km away
  53. 3.0Washington · 16655 days ago · 7 km deep · 9 km away
  54. 1.722 km S of Morton, Washington · 16655 days ago · 9 km deep · 11 km away
  55. 1.924 km S of Morton, Washington · 16655 days ago · 7 km deep · 10 km away
  56. 2.1Washington · 16655 days ago · 8 km deep · 9 km away
  57. 2.122 km S of Morton, Washington · 16655 days ago · 7 km deep · 11 km away
  58. 2.021 km S of Morton, Washington · 16655 days ago · 8 km deep · 11 km away
  59. 3.023 km S of Morton, Washington · 16655 days ago · 9 km deep · 10 km away
  60. 2.323 km S of Morton, Washington · 16655 days ago · 7 km deep · 10 km away

The first 60 of 132.

Before

  1. 2.738 km NNE of Amboy, Washington · 16665 days ago · 1 km deep · 13 km away
  2. 1.737 km S of Morton, Washington · 16666 days ago · -1 km deep · 10 km away
  3. 2.638 km NNE of Amboy, Washington · 16666 days ago · 1 km deep · 13 km away
  4. 3.138 km NNE of Amboy, Washington · 16666 days ago · 2 km deep · 12 km away
  5. 2.9Washington · 16666 days ago · 0 km deep · 12 km away
  6. 1.713 km NNE of Mount Hood Village, Oregon · 16667 days ago · 1 km deep · 94 km away
  7. 1.838 km S of Morton, Washington · 16667 days ago · -1 km deep · 11 km away
  8. 1.739 km NNE of Amboy, Washington · 16667 days ago · 0 km deep · 12 km away
  9. 1.621 km WSW of White Swan, Washington · 16668 days ago · -1 km deep · 89 km away
  10. 4.023 km SW of White Swan, Washington · 16668 days ago · 1 km deep · 87 km away
  11. 1.63 km SW of Felida, Washington · 16682 days ago · 21 km deep · 83 km away
  12. 1.737 km NNE of Amboy, Washington · 16694 days ago · 0 km deep · 12 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10097018. Read Mon, Sep 21, 2026, 4:18 PM UTC.