Washington earthquakes

M1.5 earthquake 38 km S of Morton, Washington

A magnitude 1.5 earthquake struck 38 km S of Morton, Washington on Tue, Dec 7, 1982, 4:21 AM PST (12:21 UTC), -2 km (-1 mi) below the surface.

A larger quake followed: M2.1 4 km WSW of Lake Shore, 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
1982-12-07 12:21:03 UTC
Depth
-1.6 km (-1.0 mi), shallow
Epicenter
46.213° N, 122.186° 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, 7.1 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
126°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 34 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 2.14 km WSW of Lake Shore, Washington · 15992 days ago · 16 km deep · 74 km away
  2. 2.138 km NNE of Amboy, Washington · 15992 days ago · -1 km deep · 1 km away
  3. 2.222 km S of Morton, Washington · 15990 days ago · 14 km deep · 18 km away
  4. 1.930 km S of Mossyrock, Washington · 15990 days ago · 15 km deep · 24 km away
  5. 1.538 km NNE of Amboy, Washington · 15985 days ago · -1 km deep · 1 km away
  6. 1.538 km S of Morton, Washington · 15985 days ago · -2 km deep · 0 km away
  7. 2.723 km ESE of Packwood, Washington · 15982 days ago · 4 km deep · 70 km away
  8. 1.522 km S of Morton, Washington · 15980 days ago · 2 km deep · 17 km away
  9. 1.513 km NE of Ashford, Washington · 15979 days ago · 6 km deep · 74 km away
  10. 1.838 km NNE of Amboy, Washington · 15969 days ago · -2 km deep · 2 km away
  11. 1.538 km NNE of Amboy, Washington · 15969 days ago · -1 km deep · 1 km away
  12. 1.622 km ESE of Packwood, Washington · 15966 days ago · 3 km deep · 69 km away
  13. 1.538 km NNE of Amboy, Washington · 15965 days ago · -1 km deep · 1 km away
  14. 1.537 km NNE of Amboy, Washington · 15961 days ago · -1 km deep · 2 km away
  15. 1.825 km ENE of Ashford, Washington · 15960 days ago · 1 km deep · 80 km away
  16. 1.510 km WNW of Packwood, Washington · 15958 days ago · 4 km deep · 58 km away
  17. 1.62 km ENE of Brush Prairie, Washington · 15957 days ago · 15 km deep · 59 km away
  18. 2.338 km NNE of Amboy, Washington · 15954 days ago · -2 km deep · 1 km away
  19. 1.717 km N of Mossyrock, Washington · 15953 days ago · 6 km deep · 58 km away
  20. 2.010 km SW of Packwood, Washington · 15953 days ago · 9 km deep · 49 km away
  21. 1.924 km S of Morton, Washington · 15953 days ago · 6 km deep · 14 km away
  22. 3.06 km E of Carbonado, Washington · 15947 days ago · 6 km deep · 97 km away
  23. 1.6Washington-Oregon border region · 15944 days ago · 9 km deep · 66 km away
  24. 2.611 km WNW of Deer Island, Oregon · 15942 days ago · 19 km deep · 67 km away
  25. 1.924 km ESE of Packwood, Washington · 15941 days ago · 5 km deep · 71 km away
  26. 1.711 km WSW of Mineral, Washington · 15940 days ago · 18 km deep · 52 km away
  27. 1.911 km WSW of Mineral, Washington · 15940 days ago · 17 km deep · 52 km away
  28. 2.210 km WSW of Mineral, Washington · 15940 days ago · 17 km deep · 51 km away
  29. 2.837 km NNE of Amboy, Washington · 15938 days ago · 0 km deep · 2 km away
  30. 2.09 km ESE of Carbonado, Washington · 15938 days ago · 2 km deep · 96 km away
  31. 1.738 km NNE of Amboy, Washington · 15937 days ago · -1 km deep · 1 km away
  32. 1.76 km NNW of Woodland, Washington · 15937 days ago · 16 km deep · 53 km away
  33. 2.235 km NNE of Amboy, Washington · 15936 days ago · 1 km deep · 4 km away
  34. 2.22 km WSW of Chehalis, Washington · 15935 days ago · 51 km deep · 79 km away

Before

  1. 1.520 km E of Kelso, Washington · 15998 days ago · 12 km deep · 36 km away
  2. 1.538 km NNE of Amboy, Washington · 15998 days ago · 0 km deep · 1 km away
  3. 2.625 km S of Morton, Washington · 16004 days ago · 10 km deep · 14 km away
  4. 2.236 km SSE of Morton, Washington · 16007 days ago · 7 km deep · 6 km away
  5. 2.7Washington-Oregon border region · 16011 days ago · 25 km deep · 63 km away
  6. 1.638 km NNE of Amboy, Washington · 16015 days ago · -1 km deep · 1 km away
  7. 1.931 km S of Morton, Washington · 16016 days ago · 9 km deep · 8 km away
  8. 1.638 km NNE of Amboy, Washington · 16016 days ago · -2 km deep · 1 km away
  9. 1.813 km NNE of Ashford, Washington · 16018 days ago · 8 km deep · 75 km away
  10. 1.538 km NNE of Amboy, Washington · 16019 days ago · -2 km deep · 1 km away
  11. 1.824 km S of Morton, Washington · 16019 days ago · 10 km deep · 15 km away
  12. 1.58 km ENE of Onalaska, Washington · 16024 days ago · 26 km deep · 56 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10145163. Read Tue, Sep 22, 2026, 8:17 AM UTC.