Washington earthquakes

M2.0 earthquake 21 km S of Morton, Washington

A magnitude 2.0 earthquake struck 21 km S of Morton, Washington on Mon, Oct 11, 1982, 6:20 PM PDT (01:20 UTC), 10 km (7 mi) below the surface.

A larger quake followed: M2.7 Washington-Oregon border region. 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
2.0 (md), micro
Local time
UTC
1982-10-12 01:20:55 UTC
Depth
10.5 km (6.5 mi), shallow
Epicenter
46.363° N, 122.259° 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
±0.04
Depth from
From location
Station coverage gap
48°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.922 km S of Morton, Washington · 16042 days ago · 6 km deep · 2 km away
  2. 1.538 km S of Morton, Washington · 16035 days ago · -2 km deep · 17 km away
  3. 1.539 km NNE of Amboy, Washington · 16034 days ago · -2 km deep · 18 km away
  4. 1.538 km NNE of Amboy, Washington · 16030 days ago · -1 km deep · 18 km away
  5. 1.92 km NE of Brush Prairie, Washington · 16029 days ago · 10 km deep · 71 km away
  6. 1.538 km NNE of Amboy, Washington · 16029 days ago · -2 km deep · 19 km away
  7. 1.638 km NNE of Amboy, Washington · 16029 days ago · -2 km deep · 18 km away
  8. 1.620 km NNE of Ashford, Washington · 16027 days ago · 3 km deep · 67 km away
  9. 1.838 km NNE of Amboy, Washington · 16025 days ago · -2 km deep · 18 km away
  10. 1.58 km ENE of Onalaska, Washington · 16024 days ago · 26 km deep · 39 km away
  11. 1.824 km S of Morton, Washington · 16019 days ago · 10 km deep · 2 km away
  12. 1.538 km NNE of Amboy, Washington · 16019 days ago · -2 km deep · 18 km away
  13. 1.813 km NNE of Ashford, Washington · 16018 days ago · 8 km deep · 61 km away
  14. 1.638 km NNE of Amboy, Washington · 16016 days ago · -2 km deep · 19 km away
  15. 1.931 km S of Morton, Washington · 16015 days ago · 9 km deep · 10 km away
  16. 1.638 km NNE of Amboy, Washington · 16014 days ago · -1 km deep · 19 km away
  17. 2.7Washington-Oregon border region · 16011 days ago · 25 km deep · 70 km away
  18. 2.236 km SSE of Morton, Washington · 16007 days ago · 7 km deep · 17 km away
  19. 2.625 km S of Morton, Washington · 16004 days ago · 10 km deep · 3 km away
  20. 1.538 km NNE of Amboy, Washington · 15998 days ago · 0 km deep · 19 km away
  21. 1.520 km E of Kelso, Washington · 15997 days ago · 12 km deep · 38 km away
  22. 1.538 km S of Morton, Washington · 15995 days ago · -2 km deep · 18 km away
  23. 2.14 km WSW of Lake Shore, Washington · 15992 days ago · 16 km deep · 85 km away
  24. 2.138 km NNE of Amboy, Washington · 15992 days ago · -1 km deep · 18 km away

Before

  1. 1.725 km S of Morton, Washington · 16054 days ago · 8 km deep · 4 km away
  2. 1.517 km NW of Packwood, Washington · 16069 days ago · -1 km deep · 53 km away
  3. 1.823 km S of Morton, Washington · 16072 days ago · 9 km deep · 2 km away
  4. 1.936 km NNE of Amboy, Washington · 16075 days ago · -1 km deep · 19 km away
  5. 1.83 km NNE of Packwood, Washington · 16076 days ago · 4 km deep · 56 km away
  6. 1.612 km NE of Ashford, Washington · 16079 days ago · 9 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10145708. Read Tue, Sep 22, 2026, 3:43 AM UTC.