Washington earthquakes

M1.7 earthquake 22 km S of Morton, Washington

A magnitude 1.7 earthquake struck 22 km S of Morton, Washington on Mon, Feb 23, 1981, 6:48 PM PST (02:48 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M2.0 22 km S of Morton, 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
1981-02-24 02:48:32 UTC
Depth
9.4 km (5.8 mi), shallow
Epicenter
46.358° N, 122.251° 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 0.4 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
52°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 70 in the 60 days after this one and 113 in the 30 days before it.

After

  1. 2.022 km S of Morton, Washington · 16644 days ago · 7 km deep · 1 km away
  2. 2.018 km S of Morton, Washington · 16644 days ago · 4 km deep · 4 km away
  3. 2.123 km S of Morton, Washington · 16643 days ago · 6 km deep · 2 km away
  4. 1.722 km S of Morton, Washington · 16642 days ago · 8 km deep · 1 km away
  5. 2.523 km S of Morton, Washington · 16642 days ago · 6 km deep · 2 km away
  6. 1.823 km S of Morton, Washington · 16641 days ago · 6 km deep · 1 km away
  7. 1.521 km S of Morton, Washington · 16641 days ago · 10 km deep · 1 km away
  8. 1.823 km S of Morton, Washington · 16640 days ago · 7 km deep · 2 km away
  9. 2.123 km S of Morton, Washington · 16640 days ago · 6 km deep · 1 km away
  10. 1.822 km S of Morton, Washington · 16639 days ago · 11 km deep · 0 km away
  11. 1.624 km S of Morton, Washington · 16638 days ago · 7 km deep · 3 km away
  12. 1.721 km S of Morton, Washington · 16638 days ago · 8 km deep · 1 km away
  13. 1.523 km S of Morton, Washington · 16637 days ago · 8 km deep · 2 km away
  14. 1.921 km S of Morton, Washington · 16635 days ago · 8 km deep · 1 km away
  15. 2.121 km S of Morton, Washington · 16632 days ago · 8 km deep · 0 km away
  16. 2.220 km S of Morton, Washington · 16629 days ago · 6 km deep · 2 km away
  17. 2.022 km S of Morton, Washington · 16629 days ago · 10 km deep · 1 km away
  18. 2.026 km S of Morton, Washington · 16625 days ago · 13 km deep · 4 km away
  19. 2.122 km S of Morton, Washington · 16621 days ago · 11 km deep · 1 km away
  20. 1.838 km NE of Amboy, Washington · 16621 days ago · 7 km deep · 25 km away
  21. 1.734 km NNE of Amboy, Washington · 16615 days ago · 1 km deep · 20 km away
  22. 1.825 km S of Morton, Washington · 16613 days ago · 7 km deep · 3 km away
  23. 1.824 km S of Morton, Washington · 16613 days ago · 11 km deep · 2 km away
  24. 2.735 km SSE of Morton, Washington · 16613 days ago · -1 km deep · 13 km away
  25. 1.537 km SSE of Morton, Washington · 16610 days ago · -1 km deep · 16 km away
  26. 1.637 km S of Morton, Washington · 16605 days ago · 1 km deep · 16 km away
  27. 2.237 km NNE of Amboy, Washington · 16605 days ago · -2 km deep · 18 km away
  28. 1.9Washington · 16603 days ago · 1 km deep · 19 km away
  29. 2.438 km NNE of Amboy, Washington · 16602 days ago · 0 km deep · 18 km away
  30. 1.638 km NNE of Amboy, Washington · 16601 days ago · -1 km deep · 17 km away
  31. 1.922 km S of Morton, Washington · 16601 days ago · 10 km deep · 0 km away
  32. 2.122 km S of Morton, Washington · 16601 days ago · 11 km deep · 0 km away
  33. 1.637 km NNE of Amboy, Washington · 16601 days ago · -1 km deep · 19 km away
  34. 2.039 km S of Morton, Washington · 16601 days ago · -1 km deep · 17 km away
  35. 1.737 km NE of Amboy, Washington · 16601 days ago · -1 km deep · 20 km away
  36. 1.738 km NNE of Amboy, Washington · 16601 days ago · -1 km deep · 18 km away
  37. 1.938 km NNE of Amboy, Washington · 16601 days ago · -1 km deep · 18 km away
  38. 1.938 km NNE of Amboy, Washington · 16601 days ago · -1 km deep · 18 km away
  39. 1.837 km NNE of Amboy, Washington · 16601 days ago · 0 km deep · 19 km away
  40. 1.737 km NNE of Amboy, Washington · 16601 days ago · 0 km deep · 19 km away
  41. 1.836 km NNE of Amboy, Washington · 16600 days ago · -1 km deep · 19 km away
  42. 2.038 km NNE of Amboy, Washington · 16600 days ago · -1 km deep · 18 km away
  43. 2.037 km NNE of Amboy, Washington · 16600 days ago · -1 km deep · 18 km away
  44. 1.638 km S of Morton, Washington · 16600 days ago · 0 km deep · 17 km away
  45. 2.338 km S of Morton, Washington · 16600 days ago · -1 km deep · 17 km away
  46. 2.038 km NNE of Amboy, Washington · 16600 days ago · 1 km deep · 18 km away
  47. 1.537 km NNE of Amboy, Washington · 16600 days ago · 2 km deep · 17 km away
  48. 1.837 km NNE of Amboy, Washington · 16600 days ago · -1 km deep · 18 km away
  49. 1.736 km NNE of Amboy, Washington · 16600 days ago · 1 km deep · 19 km away
  50. 1.737 km NNE of Amboy, Washington · 16600 days ago · 0 km deep · 18 km away
  51. 1.936 km NNE of Amboy, Washington · 16600 days ago · 0 km deep · 19 km away
  52. 2.538 km NNE of Amboy, Washington · 16600 days ago · -1 km deep · 19 km away
  53. 1.537 km SSE of Morton, Washington · 16600 days ago · -1 km deep · 16 km away
  54. 1.634 km NNE of Amboy, Washington · 16600 days ago · -1 km deep · 21 km away
  55. 1.938 km NNE of Amboy, Washington · 16600 days ago · 0 km deep · 18 km away
  56. 1.636 km NNE of Amboy, Washington · 16600 days ago · -1 km deep · 19 km away
  57. 2.039 km NNE of Amboy, Washington · 16600 days ago · -1 km deep · 17 km away
  58. 1.637 km NNE of Amboy, Washington · 16600 days ago · -1 km deep · 18 km away
  59. 2.322 km S of Morton, Washington · 16599 days ago · 9 km deep · 0 km away
  60. 1.937 km NNE of Amboy, Washington · 16597 days ago · 0 km deep · 18 km away

The first 60 of 70.

Before

  1. 2.124 km S of Morton, Washington · 16647 days ago · 9 km deep · 3 km away
  2. 1.824 km S of Morton, Washington · 16648 days ago · 9 km deep · 2 km away
  3. 1.924 km S of Morton, Washington · 16648 days ago · 9 km deep · 2 km away
  4. 1.919 km S of Morton, Washington · 16648 days ago · 10 km deep · 3 km away
  5. 2.121 km S of Morton, Washington · 16648 days ago · 8 km deep · 1 km away
  6. 2.524 km S of Morton, Washington · 16648 days ago · 8 km deep · 2 km away
  7. 2.324 km S of Morton, Washington · 16649 days ago · 8 km deep · 2 km away
  8. 1.523 km S of Morton, Washington · 16649 days ago · 10 km deep · 2 km away
  9. 2.122 km S of Morton, Washington · 16649 days ago · 7 km deep · 1 km away
  10. 2.424 km S of Morton, Washington · 16650 days ago · 7 km deep · 3 km away
  11. 2.122 km S of Morton, Washington · 16650 days ago · 8 km deep · 1 km away
  12. 1.7Washington · 16650 days ago · 12 km deep · 2 km away
  13. 2.223 km S of Morton, Washington · 16650 days ago · 7 km deep · 1 km away
  14. 1.923 km S of Morton, Washington · 16651 days ago · 8 km deep · 1 km away
  15. 2.224 km S of Morton, Washington · 16651 days ago · 7 km deep · 3 km away
  16. 1.925 km S of Morton, Washington · 16651 days ago · 9 km deep · 3 km away
  17. 1.822 km S of Morton, Washington · 16651 days ago · 8 km deep · 1 km away
  18. 1.623 km S of Morton, Washington · 16651 days ago · 5 km deep · 2 km away
  19. 2.221 km S of Morton, Washington · 16652 days ago · 7 km deep · 1 km away
  20. 2.423 km S of Morton, Washington · 16653 days ago · 7 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10111828. Read Tue, Sep 22, 2026, 3:13 AM UTC.