Washington earthquakes

M1.5 earthquake 22 km S of Morton, Washington

A magnitude 1.5 earthquake struck 22 km S of Morton, Washington on Wed, Dec 22, 1982, 9:33 AM PST (17:33 UTC), 2 km (2 mi) below the surface.

A larger quake followed: M2.4 2 km S of Buckley, 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
1982-12-22 17:33:23 UTC
Depth
2.5 km (1.5 mi), shallow
Epicenter
46.358° N, 122.243° 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 0.2 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.04
Depth from
Operator assigned
Station coverage gap
82°
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: 31 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.513 km NE of Ashford, Washington · 15979 days ago · 6 km deep · 60 km away
  2. 2.42 km S of Buckley, Washington · 15971 days ago · 13 km deep · 89 km away
  3. 1.838 km NNE of Amboy, Washington · 15969 days ago · -2 km deep · 17 km away
  4. 1.538 km NNE of Amboy, Washington · 15969 days ago · -1 km deep · 18 km away
  5. 1.622 km ESE of Packwood, Washington · 15966 days ago · 3 km deep · 67 km away
  6. 1.538 km NNE of Amboy, Washington · 15965 days ago · -1 km deep · 18 km away
  7. 1.537 km NNE of Amboy, Washington · 15962 days ago · -1 km deep · 18 km away
  8. 1.825 km ENE of Ashford, Washington · 15960 days ago · 1 km deep · 69 km away
  9. 1.510 km WNW of Packwood, Washington · 15958 days ago · 4 km deep · 48 km away
  10. 1.62 km ENE of Brush Prairie, Washington · 15957 days ago · 15 km deep · 72 km away
  11. 2.338 km NNE of Amboy, Washington · 15955 days ago · -2 km deep · 17 km away
  12. 1.717 km N of Mossyrock, Washington · 15954 days ago · 6 km deep · 41 km away
  13. 2.010 km SW of Packwood, Washington · 15953 days ago · 9 km deep · 42 km away
  14. 1.924 km S of Morton, Washington · 15953 days ago · 6 km deep · 2 km away
  15. 3.06 km E of Carbonado, Washington · 15947 days ago · 6 km deep · 82 km away
  16. 1.6Washington-Oregon border region · 15944 days ago · 9 km deep · 79 km away
  17. 2.611 km WNW of Deer Island, Oregon · 15942 days ago · 19 km deep · 72 km away
  18. 1.924 km ESE of Packwood, Washington · 15941 days ago · 5 km deep · 69 km away
  19. 1.711 km WSW of Mineral, Washington · 15940 days ago · 18 km deep · 36 km away
  20. 1.911 km WSW of Mineral, Washington · 15940 days ago · 17 km deep · 35 km away
  21. 2.210 km WSW of Mineral, Washington · 15940 days ago · 17 km deep · 35 km away
  22. 2.837 km NNE of Amboy, Washington · 15938 days ago · 0 km deep · 18 km away
  23. 2.09 km ESE of Carbonado, Washington · 15938 days ago · 2 km deep · 82 km away
  24. 1.738 km NNE of Amboy, Washington · 15937 days ago · -1 km deep · 18 km away
  25. 1.76 km NNW of Woodland, Washington · 15937 days ago · 16 km deep · 60 km away
  26. 2.235 km NNE of Amboy, Washington · 15936 days ago · 1 km deep · 20 km away
  27. 2.22 km WSW of Chehalis, Washington · 15935 days ago · 51 km deep · 66 km away
  28. 1.66 km E of West Side Highway, Washington · 15930 days ago · 10 km deep · 50 km away
  29. 1.67 km W of Mossyrock, Washington · 15929 days ago · 19 km deep · 31 km away
  30. 1.913 km WSW of Greenwater, Washington · 15928 days ago · 14 km deep · 91 km away
  31. 1.53 km SSW of Puyallup, Washington · 15924 days ago · 21 km deep · 89 km away

Before

  1. 2.723 km ESE of Packwood, Washington · 15982 days ago · 4 km deep · 68 km away
  2. 1.538 km S of Morton, Washington · 15985 days ago · -2 km deep · 16 km away
  3. 1.538 km NNE of Amboy, Washington · 15985 days ago · -1 km deep · 17 km away
  4. 2.413 km WSW of Greenwater, Washington · 15987 days ago · 14 km deep · 91 km away
  5. 1.930 km S of Mossyrock, Washington · 15990 days ago · 15 km deep · 22 km away
  6. 2.222 km S of Morton, Washington · 15990 days ago · 14 km deep · 3 km away
  7. 2.138 km NNE of Amboy, Washington · 15992 days ago · -1 km deep · 18 km away
  8. 2.14 km WSW of Lake Shore, Washington · 15992 days ago · 16 km deep · 85 km away
  9. 1.538 km S of Morton, Washington · 15995 days ago · -2 km deep · 17 km away
  10. 1.520 km E of Kelso, Washington · 15998 days ago · 12 km deep · 38 km away
  11. 1.538 km NNE of Amboy, Washington · 15998 days ago · 0 km deep · 18 km away
  12. 2.625 km S of Morton, Washington · 16004 days ago · 10 km deep · 3 km away
  13. 2.236 km SSE of Morton, Washington · 16007 days ago · 7 km deep · 16 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10147788. Read Tue, Sep 22, 2026, 9:05 AM UTC.