Washington earthquakes

M1.6 earthquake 32 km SSE of Morton, Washington

A magnitude 1.6 earthquake struck 32 km SSE of Morton, Washington on Thu, Mar 25, 1982, 9:48 PM PST (05:48 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M2.3 29 km NNE of Amboy, 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
1.6 (md), micro
Local time
UTC
1982-03-26 05:48:34 UTC
Depth
-1.3 km (-0.8 mi), shallow
Epicenter
46.292° N, 122.101° 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 64.9 km horizontally, 48.4 km in depth
Depth from
Operator assigned
Station coverage gap
253°, 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: 81 in the 60 days after this one and 89 in the 30 days before it.

After

  1. 2.329 km NNE of Amboy, Washington · 16251 days ago · 5 km deep · 22 km away
  2. 1.923 km S of Morton, Washington · 16250 days ago · 10 km deep · 12 km away
  3. 1.525 km S of Morton, Washington · 16246 days ago · 10 km deep · 12 km away
  4. 2.222 km S of Morton, Washington · 16245 days ago · 11 km deep · 13 km away
  5. 1.95 km E of Mossyrock, Washington · 16241 days ago · 19 km deep · 35 km away
  6. 1.638 km NNE of Amboy, Washington · 16241 days ago · -1 km deep · 12 km away
  7. 1.538 km S of Morton, Washington · 16241 days ago · -1 km deep · 10 km away
  8. 1.639 km NNE of Amboy, Washington · 16241 days ago · 0 km deep · 11 km away
  9. 1.538 km NNE of Amboy, Washington · 16241 days ago · -1 km deep · 12 km away
  10. 3.338 km S of Morton, Washington · 16241 days ago · -1 km deep · 11 km away
  11. 1.638 km NNE of Amboy, Washington · 16240 days ago · -1 km deep · 12 km away
  12. 2.138 km NNE of Amboy, Washington · 16240 days ago · 0 km deep · 12 km away
  13. 2.010 km ENE of Kalama, Washington · 16240 days ago · 14 km deep · 55 km away
  14. 2.038 km NNE of Amboy, Washington · 16240 days ago · -1 km deep · 12 km away
  15. 1.938 km NNE of Amboy, Washington · 16239 days ago · -1 km deep · 12 km away
  16. 2.436 km NNE of Amboy, Washington · 16239 days ago · 0 km deep · 13 km away
  17. 2.222 km S of Morton, Washington · 16236 days ago · 8 km deep · 13 km away
  18. 2.021 km S of Morton, Washington · 16233 days ago · 11 km deep · 15 km away
  19. 1.726 km S of Morton, Washington · 16228 days ago · 8 km deep · 11 km away
  20. 1.74 km ESE of Toledo, Washington · 16226 days ago · 22 km deep · 55 km away
  21. 1.93 km NW of Packwood, Washington · 16225 days ago · 6 km deep · 48 km away
  22. 1.7Washington · 16221 days ago · 0 km deep · 13 km away
  23. 1.727 km E of Castle Rock, Washington · 16221 days ago · 14 km deep · 35 km away
  24. 2.217 km ENE of Packwood, Washington · 16220 days ago · 5 km deep · 65 km away
  25. 2.721 km S of Morton, Washington · 16220 days ago · 8 km deep · 14 km away
  26. 1.5Washington · 16217 days ago · -1 km deep · 61 km away
  27. 1.722 km ESE of Packwood, Washington · 16214 days ago · 6 km deep · 61 km away
  28. 2.44 km WNW of Sandy, Oregon · 16210 days ago · 2 km deep · 100 km away
  29. 1.737 km NNE of Amboy, Washington · 16210 days ago · 1 km deep · 12 km away
  30. 1.737 km NNE of Amboy, Washington · 16207 days ago · 1 km deep · 13 km away
  31. 1.638 km NNE of Amboy, Washington · 16205 days ago · 0 km deep · 12 km away
  32. 1.537 km NNE of Amboy, Washington · 16205 days ago · 1 km deep · 13 km away
  33. 1.938 km S of Morton, Washington · 16205 days ago · 0 km deep · 10 km away
  34. 1.738 km NNE of Amboy, Washington · 16204 days ago · 0 km deep · 12 km away
  35. 1.68 km E of Ashford, Washington · 16204 days ago · 2 km deep · 53 km away
  36. 1.99 km E of Ashford, Washington · 16203 days ago · 4 km deep · 54 km away
  37. 1.98 km E of Ashford, Washington · 16203 days ago · 3 km deep · 53 km away
  38. 2.038 km NNE of Amboy, Washington · 16202 days ago · 0 km deep · 12 km away
  39. 1.538 km NNE of Amboy, Washington · 16202 days ago · 0 km deep · 12 km away
  40. 1.838 km NNE of Amboy, Washington · 16202 days ago · 0 km deep · 12 km away
  41. 1.836 km NNE of Amboy, Washington · 16202 days ago · 1 km deep · 14 km away
  42. 1.838 km NNE of Amboy, Washington · 16202 days ago · 0 km deep · 12 km away
  43. 1.838 km NNE of Amboy, Washington · 16202 days ago · 0 km deep · 12 km away
  44. 2.238 km NNE of Amboy, Washington · 16202 days ago · -1 km deep · 11 km away
  45. 1.838 km NNE of Amboy, Washington · 16202 days ago · 1 km deep · 12 km away
  46. 1.938 km NNE of Amboy, Washington · 16202 days ago · 0 km deep · 11 km away
  47. 3.038 km NNE of Amboy, Washington · 16201 days ago · 1 km deep · 12 km away
  48. 2.138 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 12 km away
  49. 2.036 km NNE of Amboy, Washington · 16201 days ago · 1 km deep · 13 km away
  50. 2.138 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 12 km away
  51. 1.838 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 12 km away
  52. 2.137 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 12 km away
  53. 1.938 km NNE of Amboy, Washington · 16201 days ago · -1 km deep · 11 km away
  54. 2.038 km NNE of Amboy, Washington · 16201 days ago · 1 km deep · 12 km away
  55. 1.838 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 12 km away
  56. 2.038 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 12 km away
  57. 2.038 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 12 km away
  58. 2.538 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 12 km away
  59. 2.338 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 12 km away
  60. 2.638 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 11 km away

The first 60 of 81.

Before

  1. 1.736 km NE of Amboy, Washington · 16252 days ago · 0 km deep · 13 km away
  2. 1.623 km S of Morton, Washington · 16255 days ago · 11 km deep · 13 km away
  3. 1.637 km NNE of Amboy, Washington · 16255 days ago · 1 km deep · 12 km away
  4. 2.138 km NNE of Amboy, Washington · 16256 days ago · 0 km deep · 12 km away
  5. 2.038 km NNE of Amboy, Washington · 16256 days ago · 0 km deep · 12 km away
  6. 1.638 km NNE of Amboy, Washington · 16256 days ago · -1 km deep · 12 km away
  7. 1.838 km NNE of Amboy, Washington · 16256 days ago · 0 km deep · 12 km away
  8. 1.537 km NNE of Amboy, Washington · 16256 days ago · -1 km deep · 13 km away
  9. 1.615 km NNE of Ashford, Washington · 16256 days ago · 8 km deep · 67 km away
  10. 2.423 km S of Morton, Washington · 16256 days ago · 10 km deep · 13 km away
  11. 1.538 km NNE of Amboy, Washington · 16257 days ago · -1 km deep · 12 km away
  12. 1.638 km NNE of Amboy, Washington · 16257 days ago · -1 km deep · 12 km away
  13. 1.538 km NNE of Amboy, Washington · 16257 days ago · -1 km deep · 12 km away
  14. 1.738 km NNE of Amboy, Washington · 16257 days ago · -1 km deep · 12 km away
  15. 1.538 km NNE of Amboy, Washington · 16257 days ago · -1 km deep · 12 km away
  16. 1.938 km NNE of Amboy, Washington · 16257 days ago · -1 km deep · 12 km away
  17. 1.738 km NNE of Amboy, Washington · 16257 days ago · -1 km deep · 12 km away
  18. 1.838 km NNE of Amboy, Washington · 16257 days ago · -1 km deep · 12 km away
  19. 2.238 km NNE of Amboy, Washington · 16257 days ago · -1 km deep · 12 km away
  20. 2.138 km NNE of Amboy, Washington · 16257 days ago · -1 km deep · 12 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10140893. Read Tue, Sep 22, 2026, 2:04 AM UTC.