Washington earthquakes

M1.8 earthquake 38 km S of Morton, Washington

A magnitude 1.8 earthquake struck 38 km S of Morton, Washington on Mon, Feb 2, 1981, 3:40 AM PST (11:40 UTC), -1 km (0 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
1.8 (md), micro
Local time
UTC
1981-02-02 11:40:14 UTC
Depth
-0.7 km (-0.4 mi), shallow
Epicenter
46.213° 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 0.5 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
72°
Stations used
12

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 5 in the 30 days before it.

After

  1. 1.713 km NNE of Mount Hood Village, Oregon · 16668 days ago · 1 km deep · 85 km away
  2. 2.9Washington · 16668 days ago · 0 km deep · 1 km away
  3. 3.138 km NNE of Amboy, Washington · 16667 days ago · 2 km deep · 1 km away
  4. 2.638 km NNE of Amboy, Washington · 16667 days ago · 1 km deep · 1 km away
  5. 1.737 km S of Morton, Washington · 16667 days ago · -1 km deep · 2 km away
  6. 2.738 km NNE of Amboy, Washington · 16667 days ago · 1 km deep · 2 km away
  7. 2.130 km SSE of Morton, Washington · 16666 days ago · 20 km deep · 11 km away
  8. 2.137 km NNE of Amboy, Washington · 16666 days ago · 1 km deep · 3 km away
  9. 2.9Washington · 16666 days ago · 0 km deep · 2 km away
  10. 2.437 km S of Morton, Washington · 16666 days ago · 0 km deep · 2 km away
  11. 2.2Washington · 16666 days ago · -1 km deep · 2 km away
  12. 2.540 km SSE of Morton, Washington · 16666 days ago · -1 km deep · 4 km away
  13. 2.938 km S of Morton, Washington · 16666 days ago · -1 km deep · 1 km away
  14. 2.935 km NNE of Amboy, Washington · 16666 days ago · 0 km deep · 4 km away
  15. 3.0Washington · 16666 days ago · 1 km deep · 1 km away
  16. 2.738 km NNE of Amboy, Washington · 16666 days ago · -1 km deep · 2 km away
  17. 2.9Washington · 16666 days ago · -1 km deep · 2 km away
  18. 2.738 km S of Morton, Washington · 16666 days ago · -1 km deep · 0 km away
  19. 2.337 km S of Morton, Washington · 16666 days ago · -1 km deep · 1 km away
  20. 2.637 km SSE of Morton, Washington · 16666 days ago · 0 km deep · 9 km away
  21. 2.738 km NNE of Amboy, Washington · 16666 days ago · -1 km deep · 0 km away
  22. 2.638 km NNE of Amboy, Washington · 16666 days ago · -1 km deep · 1 km away
  23. 2.637 km NNE of Amboy, Washington · 16666 days ago · -1 km deep · 1 km away
  24. 2.342 km NE of Amboy, Washington · 16666 days ago · 6 km deep · 9 km away
  25. 2.629 km NNE of Amboy, Washington · 16666 days ago · 10 km deep · 10 km away
  26. 1.814 km SW of Alder, Washington · 16665 days ago · 20 km deep · 58 km away
  27. 2.434 km NNE of Amboy, Washington · 16664 days ago · -1 km deep · 5 km away
  28. 2.526 km S of Morton, Washington · 16660 days ago · 2 km deep · 13 km away
  29. 1.925 km SSE of Morton, Washington · 16660 days ago · 2 km deep · 13 km away
  30. 5.223 km S of Morton, Washington · 16657 days ago · 6 km deep · 16 km away
  31. 3.825 km S of Morton, Washington · 16657 days ago · 8 km deep · 14 km away
  32. 2.225 km S of Morton, Washington · 16657 days ago · 6 km deep · 14 km away
  33. 2.522 km S of Morton, Washington · 16657 days ago · 9 km deep · 16 km away
  34. 2.422 km S of Morton, Washington · 16657 days ago · 6 km deep · 16 km away
  35. 1.823 km S of Morton, Washington · 16657 days ago · 6 km deep · 15 km away
  36. 2.125 km S of Morton, Washington · 16657 days ago · 7 km deep · 13 km away
  37. 2.022 km S of Morton, Washington · 16657 days ago · 7 km deep · 17 km away
  38. 2.023 km S of Morton, Washington · 16657 days ago · 7 km deep · 16 km away
  39. 3.523 km S of Morton, Washington · 16657 days ago · 9 km deep · 16 km away
  40. 3.425 km S of Morton, Washington · 16657 days ago · 11 km deep · 14 km away
  41. 1.723 km S of Morton, Washington · 16657 days ago · 8 km deep · 15 km away
  42. 2.925 km S of Morton, Washington · 16657 days ago · 10 km deep · 14 km away
  43. 1.522 km S of Morton, Washington · 16657 days ago · 8 km deep · 17 km away
  44. 2.421 km S of Morton, Washington · 16657 days ago · 4 km deep · 17 km away
  45. 1.822 km S of Morton, Washington · 16657 days ago · 8 km deep · 17 km away
  46. 1.822 km S of Morton, Washington · 16657 days ago · 7 km deep · 17 km away
  47. 1.922 km S of Morton, Washington · 16657 days ago · 10 km deep · 16 km away
  48. 1.923 km S of Morton, Washington · 16657 days ago · 8 km deep · 15 km away
  49. 3.822 km S of Morton, Washington · 16657 days ago · 10 km deep · 16 km away
  50. 1.822 km S of Morton, Washington · 16657 days ago · 10 km deep · 17 km away
  51. 1.722 km S of Morton, Washington · 16657 days ago · 10 km deep · 17 km away
  52. 1.624 km S of Morton, Washington · 16657 days ago · 10 km deep · 15 km away
  53. 1.922 km S of Morton, Washington · 16657 days ago · 6 km deep · 16 km away
  54. 1.524 km S of Morton, Washington · 16657 days ago · 8 km deep · 15 km away
  55. 2.822 km S of Morton, Washington · 16657 days ago · 8 km deep · 17 km away
  56. 1.622 km S of Morton, Washington · 16657 days ago · 10 km deep · 16 km away
  57. 1.522 km S of Morton, Washington · 16657 days ago · 8 km deep · 17 km away
  58. 2.025 km S of Morton, Washington · 16657 days ago · 10 km deep · 14 km away
  59. 1.724 km S of Morton, Washington · 16657 days ago · 7 km deep · 15 km away
  60. 3.0Washington · 16657 days ago · 7 km deep · 14 km away

The first 60 of 137.

Before

  1. 1.739 km NNE of Amboy, Washington · 16669 days ago · 0 km deep · 1 km away
  2. 1.621 km WSW of White Swan, Washington · 16669 days ago · -1 km deep · 94 km away
  3. 4.023 km SW of White Swan, Washington · 16669 days ago · 1 km deep · 92 km away
  4. 1.63 km SW of Felida, Washington · 16683 days ago · 21 km deep · 72 km away
  5. 1.737 km NNE of Amboy, Washington · 16696 days ago · 0 km deep · 1 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10096288. Read Wed, Sep 23, 2026, 4:30 AM UTC.