Washington earthquakes

M1.7 earthquake 27 km E of Castle Rock, Washington

A magnitude 1.7 earthquake struck 27 km E of Castle Rock, Washington on Sat, Apr 24, 1982, 8:12 AM PST (16:12 UTC), 14 km (8 mi) below the surface.

A larger quake followed: M3.0 38 km NNE of Amboy, Washington. This one was a foreshock.

Castle Rock 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
1982-04-24 16:12:14 UTC
Depth
13.6 km (8.5 mi), shallow
Epicenter
46.245° N, 122.554° 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 0.3 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
83°
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: 73 in the 60 days after this one and 23 in the 30 days before it.

After

  1. 2.217 km ENE of Packwood, Washington · 16229 days ago · 5 km deep · 96 km away
  2. 2.721 km S of Morton, Washington · 16228 days ago · 8 km deep · 27 km away
  3. 1.5Washington · 16225 days ago · -1 km deep · 95 km away
  4. 1.722 km ESE of Packwood, Washington · 16223 days ago · 6 km deep · 95 km away
  5. 2.44 km WNW of Sandy, Oregon · 16219 days ago · 2 km deep · 95 km away
  6. 1.737 km NNE of Amboy, Washington · 16218 days ago · 1 km deep · 28 km away
  7. 1.737 km NNE of Amboy, Washington · 16215 days ago · 1 km deep · 29 km away
  8. 1.638 km NNE of Amboy, Washington · 16214 days ago · 0 km deep · 29 km away
  9. 1.537 km NNE of Amboy, Washington · 16213 days ago · 1 km deep · 28 km away
  10. 1.938 km S of Morton, Washington · 16213 days ago · 0 km deep · 29 km away
  11. 1.738 km NNE of Amboy, Washington · 16213 days ago · 0 km deep · 29 km away
  12. 1.68 km E of Ashford, Washington · 16212 days ago · 2 km deep · 75 km away
  13. 1.99 km E of Ashford, Washington · 16212 days ago · 4 km deep · 76 km away
  14. 1.98 km E of Ashford, Washington · 16211 days ago · 3 km deep · 75 km away
  15. 2.038 km NNE of Amboy, Washington · 16211 days ago · 0 km deep · 29 km away
  16. 1.538 km NNE of Amboy, Washington · 16211 days ago · 0 km deep · 28 km away
  17. 1.838 km NNE of Amboy, Washington · 16210 days ago · 0 km deep · 29 km away
  18. 1.836 km NNE of Amboy, Washington · 16210 days ago · 1 km deep · 29 km away
  19. 1.838 km NNE of Amboy, Washington · 16210 days ago · 0 km deep · 29 km away
  20. 1.838 km NNE of Amboy, Washington · 16210 days ago · 0 km deep · 28 km away
  21. 2.238 km NNE of Amboy, Washington · 16210 days ago · -1 km deep · 29 km away
  22. 1.838 km NNE of Amboy, Washington · 16210 days ago · 1 km deep · 28 km away
  23. 1.938 km NNE of Amboy, Washington · 16210 days ago · 0 km deep · 29 km away
  24. 3.038 km NNE of Amboy, Washington · 16210 days ago · 1 km deep · 28 km away
  25. 2.138 km NNE of Amboy, Washington · 16210 days ago · 0 km deep · 28 km away
  26. 2.036 km NNE of Amboy, Washington · 16210 days ago · 1 km deep · 28 km away
  27. 2.138 km NNE of Amboy, Washington · 16210 days ago · 0 km deep · 29 km away
  28. 1.838 km NNE of Amboy, Washington · 16210 days ago · 0 km deep · 28 km away
  29. 2.137 km NNE of Amboy, Washington · 16210 days ago · 0 km deep · 28 km away
  30. 1.938 km NNE of Amboy, Washington · 16209 days ago · -1 km deep · 28 km away
  31. 2.038 km NNE of Amboy, Washington · 16209 days ago · 1 km deep · 28 km away
  32. 1.838 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 28 km away
  33. 2.038 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 28 km away
  34. 2.038 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 28 km away
  35. 2.538 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 28 km away
  36. 2.338 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 28 km away
  37. 2.638 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 29 km away
  38. 2.138 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 28 km away
  39. 2.338 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 28 km away
  40. 2.038 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 29 km away
  41. 2.038 km NNE of Amboy, Washington · 16209 days ago · -1 km deep · 28 km away
  42. 1.838 km NNE of Amboy, Washington · 16209 days ago · -1 km deep · 28 km away
  43. 2.336 km NNE of Amboy, Washington · 16209 days ago · -1 km deep · 28 km away
  44. 1.838 km NNE of Amboy, Washington · 16209 days ago · -1 km deep · 28 km away
  45. 1.738 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 28 km away
  46. 2.038 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 28 km away
  47. 1.537 km NNE of Amboy, Washington · 16209 days ago · 1 km deep · 28 km away
  48. 1.838 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 28 km away
  49. 1.837 km NNE of Amboy, Washington · 16209 days ago · -1 km deep · 28 km away
  50. 1.938 km NNE of Amboy, Washington · 16209 days ago · 0 km deep · 29 km away
  51. 1.938 km NNE of Amboy, Washington · 16208 days ago · -1 km deep · 29 km away
  52. 2.037 km NNE of Amboy, Washington · 16208 days ago · 0 km deep · 28 km away
  53. 2.338 km NNE of Amboy, Washington · 16208 days ago · -1 km deep · 28 km away
  54. 1.736 km NNE of Amboy, Washington · 16208 days ago · -1 km deep · 27 km away
  55. 2.139 km NNE of Amboy, Washington · 16208 days ago · 0 km deep · 29 km away
  56. 1.67 km ESE of McKenna, Washington · 16208 days ago · 22 km deep · 76 km away
  57. 1.638 km NNE of Amboy, Washington · 16207 days ago · 0 km deep · 29 km away
  58. 1.637 km NNE of Amboy, Washington · 16207 days ago · -1 km deep · 29 km away
  59. 1.823 km S of Morton, Washington · 16198 days ago · 11 km deep · 26 km away
  60. 1.82 km NE of Brush Prairie, Washington · 16198 days ago · 14 km deep · 56 km away

The first 60 of 73.

Before

  1. 1.7Washington · 16230 days ago · 0 km deep · 27 km away
  2. 1.93 km NW of Packwood, Washington · 16233 days ago · 6 km deep · 78 km away
  3. 1.74 km ESE of Toledo, Washington · 16235 days ago · 22 km deep · 27 km away
  4. 1.726 km S of Morton, Washington · 16237 days ago · 8 km deep · 26 km away
  5. 2.021 km S of Morton, Washington · 16242 days ago · 11 km deep · 27 km away
  6. 2.222 km S of Morton, Washington · 16244 days ago · 8 km deep · 27 km away
  7. 2.436 km NNE of Amboy, Washington · 16247 days ago · 0 km deep · 27 km away
  8. 1.938 km NNE of Amboy, Washington · 16248 days ago · -1 km deep · 28 km away
  9. 2.038 km NNE of Amboy, Washington · 16248 days ago · -1 km deep · 29 km away
  10. 2.010 km ENE of Kalama, Washington · 16248 days ago · 14 km deep · 26 km away
  11. 2.138 km NNE of Amboy, Washington · 16249 days ago · 0 km deep · 29 km away
  12. 1.638 km NNE of Amboy, Washington · 16249 days ago · -1 km deep · 29 km away
  13. 3.338 km S of Morton, Washington · 16249 days ago · -1 km deep · 29 km away
  14. 1.538 km NNE of Amboy, Washington · 16249 days ago · -1 km deep · 29 km away
  15. 1.639 km NNE of Amboy, Washington · 16250 days ago · 0 km deep · 29 km away
  16. 1.538 km S of Morton, Washington · 16250 days ago · -1 km deep · 29 km away
  17. 1.638 km NNE of Amboy, Washington · 16250 days ago · -1 km deep · 28 km away
  18. 1.95 km E of Mossyrock, Washington · 16250 days ago · 19 km deep · 33 km away
  19. 2.222 km S of Morton, Washington · 16253 days ago · 11 km deep · 26 km away
  20. 1.525 km S of Morton, Washington · 16254 days ago · 10 km deep · 26 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10130483. Read Wed, Sep 30, 2026, 2:06 PM UTC.