Washington earthquakes

M1.6 earthquake 20 km S of Morton, Washington

A magnitude 1.6 earthquake struck 20 km S of Morton, Washington on Sun, Jan 19, 1986, 6:19 PM PST (02:19 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M1.8 12 km ENE of Yacolt, 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
1986-01-20 02:19:03 UTC
Depth
7.9 km (4.9 mi), shallow
Epicenter
46.373° N, 122.249° 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, 0.3 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
83°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 17 in the 30 days before it.

After

  1. 1.812 km ENE of Yacolt, Washington · 14853 days ago · 6 km deep · 53 km away
  2. 1.5Washington-Oregon border region · 14845 days ago · -1 km deep · 86 km away
  3. 1.638 km NNE of Amboy, Washington · 14844 days ago · -2 km deep · 19 km away
  4. 1.638 km NNE of Amboy, Washington · 14842 days ago · -2 km deep · 19 km away
  5. 1.838 km NNE of Amboy, Washington · 14835 days ago · -2 km deep · 19 km away
  6. 2.138 km NNE of Amboy, Washington · 14828 days ago · -1 km deep · 19 km away
  7. 1.632 km NE of Amboy, Washington · 14818 days ago · 3 km deep · 32 km away
  8. 1.511 km SE of Greenwater, Washington · 14818 days ago · 6 km deep · 94 km away
  9. 1.933 km NE of Amboy, Washington · 14816 days ago · 5 km deep · 32 km away
  10. 1.738 km NNE of Amboy, Washington · 14814 days ago · -1 km deep · 20 km away
  11. 1.838 km NNE of Amboy, Washington · 14812 days ago · -2 km deep · 19 km away
  12. 2.638 km NNE of Amboy, Washington · 14810 days ago · -2 km deep · 19 km away
  13. 2.437 km NNE of Amboy, Washington · 14807 days ago · -1 km deep · 20 km away
  14. 3.14 km NE of Amboy, Washington · 14806 days ago · 13 km deep · 50 km away
  15. 1.833 km NE of Amboy, Washington · 14805 days ago · 3 km deep · 31 km away
  16. 1.95 km SW of La Grande, Washington · 14803 days ago · -1 km deep · 48 km away
  17. 1.538 km NNE of Amboy, Washington · 14802 days ago · -2 km deep · 20 km away
  18. 1.538 km NNE of Amboy, Washington · 14798 days ago · -1 km deep · 20 km away

Before

  1. 1.637 km S of Morton, Washington · 14857 days ago · 0 km deep · 17 km away
  2. 3.019 km SSE of Carbonado, Washington · 14873 days ago · 10 km deep · 67 km away
  3. 1.723 km ESE of Packwood, Washington · 14874 days ago · -1 km deep · 67 km away
  4. 1.522 km ESE of Packwood, Washington · 14874 days ago · -1 km deep · 67 km away
  5. 2.54 km NNE of La Center, WA · 14874 days ago · 16 km deep · 61 km away
  6. 1.538 km NNE of Amboy, Washington · 14877 days ago · -2 km deep · 19 km away
  7. 1.514 km SSE of Ashford, Washington · 14879 days ago · 8 km deep · 39 km away
  8. 1.59 km ENE of Kalama, Washington · 14880 days ago · 14 km deep · 53 km away
  9. 1.87 km NNE of Elbe, Washington · 14880 days ago · 4 km deep · 52 km away
  10. 3.018 km SE of Carbonado, Washington · 14880 days ago · 6 km deep · 72 km away
  11. 1.524 km S of Morton, Washington · 14881 days ago · 7 km deep · 3 km away
  12. 2.424 km S of Morton, Washington · 14881 days ago · 6 km deep · 4 km away
  13. 3.124 km S of Morton, Washington · 14881 days ago · 6 km deep · 4 km away
  14. 1.725 km E of Castle Rock, Washington · 14882 days ago · 17 km deep · 27 km away
  15. 1.66 km NE of Amboy, Washington · 14885 days ago · 16 km deep · 48 km away
  16. 2.238 km NNE of Amboy, Washington · 14886 days ago · -1 km deep · 20 km away
  17. 1.537 km NNE of Amboy, Washington · 14887 days ago · -2 km deep · 19 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10201813. Read Wed, Sep 23, 2026, 2:19 PM UTC.