Washington earthquakes

M1.5 earthquake 20 km S of Morton, Washington

A magnitude 1.5 earthquake struck 20 km S of Morton, Washington on Thu, Feb 16, 1984, 2:23 AM PST (10:23 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M3.3 12 km WSW of La Grande, 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
1.5 (md), micro
Local time
UTC
1984-02-16 10:23:48 UTC
Depth
15.0 km (9.3 mi), shallow
Epicenter
46.372° N, 122.284° 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, 0.4 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
57°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 192 in the 60 days after this one and 101 in the 30 days before it.

After

  1. 1.838 km NNE of Amboy, Washington · 15564 days ago · 0 km deep · 21 km away
  2. 2.538 km NNE of Amboy, Washington · 15561 days ago · -1 km deep · 20 km away
  3. 2.010 km WSW of Ryderwood, Washington · 15560 days ago · 17 km deep · 69 km away
  4. 1.56 km WNW of Tumwater, Washington · 15549 days ago · -1 km deep · 90 km away
  5. 1.511 km NNE of Ashford, Washington · 15548 days ago · 11 km deep · 59 km away
  6. 1.68 km E of Wilkeson, Washington · 15540 days ago · 9 km deep · 87 km away
  7. 1.838 km NNE of Amboy, Washington · 15539 days ago · -1 km deep · 20 km away
  8. 1.9Washington-Oregon border region · 15539 days ago · 0 km deep · 85 km away
  9. 1.9Washington · 15539 days ago · -1 km deep · 71 km away
  10. 1.624 km S of Morton, Washington · 15536 days ago · 10 km deep · 4 km away
  11. 2.538 km NNE of Amboy, Washington · 15535 days ago · -1 km deep · 20 km away
  12. 1.538 km NNE of Amboy, Washington · 15534 days ago · -2 km deep · 20 km away
  13. 2.01 km W of Wilkeson, Washington · 15534 days ago · 5 km deep · 83 km away
  14. 1.538 km NNE of Amboy, Washington · 15533 days ago · -2 km deep · 20 km away
  15. 1.738 km NNE of Amboy, Washington · 15533 days ago · -1 km deep · 20 km away
  16. 1.538 km NNE of Amboy, Washington · 15532 days ago · -1 km deep · 20 km away
  17. 1.738 km NNE of Amboy, Washington · 15532 days ago · -1 km deep · 20 km away
  18. 1.638 km NNE of Amboy, Washington · 15532 days ago · -2 km deep · 20 km away
  19. 1.638 km NNE of Amboy, Washington · 15532 days ago · -2 km deep · 20 km away
  20. 2.138 km NNE of Amboy, Washington · 15532 days ago · -1 km deep · 20 km away
  21. 2.338 km NNE of Amboy, Washington · 15531 days ago · -2 km deep · 20 km away
  22. 1.838 km NNE of Amboy, Washington · 15530 days ago · -1 km deep · 20 km away
  23. 1.738 km NNE of Amboy, Washington · 15530 days ago · -1 km deep · 20 km away
  24. 2.138 km NNE of Amboy, Washington · 15530 days ago · 0 km deep · 20 km away
  25. 2.023 km ENE of Ashford, Washington · 15529 days ago · 4 km deep · 67 km away
  26. 1.538 km NNE of Amboy, Washington · 15529 days ago · -1 km deep · 20 km away
  27. 1.738 km NNE of Amboy, Washington · 15529 days ago · 0 km deep · 20 km away
  28. 1.838 km NNE of Amboy, Washington · 15529 days ago · -1 km deep · 20 km away
  29. 1.6Washington · 15528 days ago · -1 km deep · 20 km away
  30. 1.638 km NNE of Amboy, Washington · 15528 days ago · -2 km deep · 20 km away
  31. 1.838 km NNE of Amboy, Washington · 15528 days ago · -2 km deep · 20 km away
  32. 1.638 km NNE of Amboy, Washington · 15528 days ago · -2 km deep · 20 km away
  33. 1.838 km NNE of Amboy, Washington · 15528 days ago · -2 km deep · 20 km away
  34. 1.538 km NNE of Amboy, Washington · 15528 days ago · -1 km deep · 20 km away
  35. 1.638 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  36. 1.538 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  37. 1.838 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  38. 1.8Washington · 15527 days ago · -2 km deep · 20 km away
  39. 1.638 km NNE of Amboy, Washington · 15527 days ago · -2 km deep · 20 km away
  40. 1.838 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  41. 1.538 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  42. 2.138 km NNE of Amboy, Washington · 15527 days ago · -2 km deep · 20 km away
  43. 1.538 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  44. 1.838 km NNE of Amboy, Washington · 15527 days ago · -2 km deep · 20 km away
  45. 2.038 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 21 km away
  46. 1.638 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  47. 1.738 km NNE of Amboy, Washington · 15527 days ago · -2 km deep · 20 km away
  48. 1.538 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  49. 1.638 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  50. 1.638 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  51. 1.838 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  52. 1.638 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  53. 1.838 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  54. 1.838 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  55. 1.638 km NNE of Amboy, Washington · 15527 days ago · -2 km deep · 20 km away
  56. 2.038 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  57. 2.038 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  58. 1.838 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  59. 1.738 km NNE of Amboy, Washington · 15527 days ago · -1 km deep · 20 km away
  60. 1.838 km NNE of Amboy, Washington · 15527 days ago · -2 km deep · 20 km away

The first 60 of 192.

Before

  1. 1.823 km ESE of Packwood, Washington · 15570 days ago · 3 km deep · 70 km away
  2. 1.738 km NNE of Amboy, Washington · 15571 days ago · 0 km deep · 20 km away
  3. 1.638 km NNE of Amboy, Washington · 15571 days ago · -1 km deep · 20 km away
  4. 1.623 km S of Morton, Washington · 15571 days ago · 11 km deep · 4 km away
  5. 2.137 km NNE of Amboy, Washington · 15571 days ago · 0 km deep · 20 km away
  6. 1.938 km NNE of Amboy, Washington · 15572 days ago · -1 km deep · 20 km away
  7. 2.31 km SSW of Crocker, Washington · 15572 days ago · 11 km deep · 79 km away
  8. 2.238 km NNE of Amboy, Washington · 15573 days ago · -1 km deep · 20 km away
  9. 1.738 km NNE of Amboy, Washington · 15573 days ago · 0 km deep · 20 km away
  10. 1.538 km NNE of Amboy, Washington · 15575 days ago · -2 km deep · 20 km away
  11. 1.938 km NNE of Amboy, Washington · 15575 days ago · -1 km deep · 20 km away
  12. 1.838 km S of Morton, Washington · 15575 days ago · -2 km deep · 19 km away
  13. 1.738 km NNE of Amboy, Washington · 15575 days ago · -1 km deep · 21 km away
  14. 2.039 km NNE of Amboy, Washington · 15576 days ago · -1 km deep · 20 km away
  15. 2.137 km NNE of Amboy, Washington · 15576 days ago · -2 km deep · 20 km away
  16. 2.038 km NNE of Amboy, Washington · 15576 days ago · -2 km deep · 21 km away
  17. 2.038 km NNE of Amboy, Washington · 15576 days ago · -1 km deep · 20 km away
  18. 1.838 km NNE of Amboy, Washington · 15576 days ago · -1 km deep · 20 km away
  19. 1.937 km NNE of Amboy, Washington · 15576 days ago · -2 km deep · 21 km away
  20. 2.238 km NNE of Amboy, Washington · 15576 days ago · -2 km deep · 20 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10177823. Read Wed, Sep 30, 2026, 7:18 PM UTC.