Washington earthquakes

M2.1 earthquake 38 km S of Morton, Washington

A magnitude 2.1 earthquake struck 38 km S of Morton, Washington on Fri, Oct 18, 1985, 1:16 PM PDT (20:16 UTC), -2 km (-1 mi) below the surface.

A larger quake followed: M2.3 4 km SW of Sandy, Oregon. 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
2.1 (md), micro
Local time
UTC
1985-10-18 20:16:21 UTC
Depth
-1.5 km (-0.9 mi), shallow
Epicenter
46.215° N, 122.201° 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 0.1 km horizontally, 3.3 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
111°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.810 km ESE of Ashford, Washington · 14942 days ago · 2 km deep · 61 km away
  2. 1.6Washington · 14937 days ago · 16 km deep · 37 km away
  3. 2.34 km SW of Sandy, Oregon · 14937 days ago · 20 km deep · 94 km away
  4. 2.013 km NNW of Morton, Washington · 14932 days ago · 17 km deep · 51 km away
  5. 2.038 km S of Morton, Washington · 14930 days ago · -2 km deep · 1 km away
  6. 2.313 km NE of Ashford, Washington · 14929 days ago · 7 km deep · 74 km away
  7. 2.921 km S of Morton, Washington · 14918 days ago · 10 km deep · 17 km away
  8. 1.528 km NW of Carson, Washington · 14907 days ago · 11 km deep · 34 km away
  9. 2.112 km N of Mossyrock, Washington · 14898 days ago · 20 km deep · 53 km away
  10. 1.87 km NNE of Elbe, Washington · 14892 days ago · -1 km deep · 69 km away

Before

  1. 1.64 km SE of Packwood, Washington · 14950 days ago · 0 km deep · 60 km away
  2. 1.523 km E of Castle Rock, Washington · 14953 days ago · 19 km deep · 32 km away
  3. 1.611 km NNE of La Center, Washington · 14954 days ago · 8 km deep · 43 km away
  4. 2.24 km S of Bingen, Washington · 14964 days ago · 7 km deep · 82 km away
  5. 2.528 km NE of Trout Lake, Washington · 14964 days ago · -1 km deep · 71 km away
  6. 2.728 km NE of Trout Lake, Washington · 14964 days ago · 1 km deep · 71 km away
  7. 1.5Washington · 14964 days ago · -1 km deep · 79 km away
  8. 2.117 km ESE of Carbonado, Washington · 14967 days ago · 16 km deep · 91 km away
  9. 1.637 km NNE of Amboy, Washington · 14970 days ago · -1 km deep · 2 km away
  10. 1.92 km NNE of Packwood, Washington · 14975 days ago · 3 km deep · 62 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10200618. Read Tue, Sep 22, 2026, 4:50 AM UTC.