Washington earthquakes

M1.8 earthquake 13 km ESE of Ashford, Washington

A magnitude 1.8 earthquake struck 13 km ESE of Ashford, Washington on Wed, Sep 4, 1985, 3:43 PM PDT (22:43 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M3.0 4 km WSW of Des Moines, Washington. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.8 (md), micro
Local time
UTC
1985-09-04 22:43:06 UTC
Depth
-1.2 km (-0.8 mi), shallow
Epicenter
46.723° N, 121.855° 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, 0.2 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
58°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 2.5Washington · 14994 days ago · 6 km deep · 53 km away
  2. 1.65 km NNW of Maplewood, Washington · 14990 days ago · 17 km deep · 97 km away
  3. 2.52 km SW of Des Moines, Washington · 14989 days ago · 14 km deep · 83 km away
  4. 1.52 km SW of Des Moines, Washington · 14989 days ago · 15 km deep · 83 km away
  5. 1.829 km S of Morton, Washington · 14988 days ago · 10 km deep · 55 km away
  6. 2.37 km SSE of Carbonado, Washington · 14988 days ago · 14 km deep · 35 km away
  7. 1.812 km W of Greenwater, Washington · 14986 days ago · 14 km deep · 49 km away
  8. 3.04 km WSW of Des Moines, Washington · 14985 days ago · 19 km deep · 84 km away
  9. 1.639 km NNE of Amboy, Washington · 14984 days ago · -2 km deep · 62 km away
  10. 1.85 km E of Hobart, Washington · 14983 days ago · 10 km deep · 79 km away
  11. 2.03 km SSE of Issaquah, Washington · 14979 days ago · -1 km deep · 87 km away
  12. 1.92 km NNE of Packwood, Washington · 14978 days ago · 3 km deep · 18 km away
  13. 2.23 km S of Issaquah, Washington · 14974 days ago · 0 km deep · 87 km away
  14. 1.637 km NNE of Amboy, Washington · 14973 days ago · -1 km deep · 64 km away
  15. 2.43 km NW of Burien, Washington · 14971 days ago · 23 km deep · 94 km away
  16. 2.02 km NW of Burien, Washington · 14971 days ago · 22 km deep · 94 km away
  17. 2.117 km ESE of Carbonado, Washington · 14969 days ago · 16 km deep · 30 km away
  18. 1.5Washington · 14966 days ago · -1 km deep · 16 km away
  19. 2.728 km NE of Trout Lake, Washington · 14966 days ago · 1 km deep · 74 km away
  20. 2.528 km NE of Trout Lake, Washington · 14966 days ago · -1 km deep · 74 km away
  21. 1.523 km E of Castle Rock, Washington · 14955 days ago · 19 km deep · 74 km away
  22. 2.70 km ENE of Riverbend, Washington · 14954 days ago · 15 km deep · 83 km away
  23. 1.64 km SE of Packwood, Washington · 14952 days ago · 0 km deep · 23 km away
  24. 2.138 km S of Morton, Washington · 14951 days ago · -2 km deep · 62 km away
  25. 1.810 km ESE of Ashford, Washington · 14944 days ago · 2 km deep · 4 km away
  26. 1.84 km WSW of Wilderness Rim, Washington · 14942 days ago · 15 km deep · 79 km away
  27. 1.6Washington · 14939 days ago · 16 km deep · 47 km away

Before

  1. 1.538 km NNE of Amboy, Washington · 14999 days ago · -2 km deep · 63 km away
  2. 1.715 km ENE of Packwood, Washington · 15005 days ago · 5 km deep · 28 km away
  3. 1.538 km NNE of Amboy, Washington · 15007 days ago · -2 km deep · 63 km away
  4. 1.538 km NNE of Amboy, Washington · 15008 days ago · -2 km deep · 63 km away
  5. 1.811 km SW of Ellensburg, Washington · 15008 days ago · 9 km deep · 94 km away
  6. 1.738 km S of Morton, Washington · 15009 days ago · -2 km deep · 62 km away
  7. 1.612 km ESE of Enumclaw, Washington · 15011 days ago · 1 km deep · 48 km away
  8. 1.72 km SSE of Crocker, Washington · 15016 days ago · 0 km deep · 42 km away
  9. 1.58 km SSE of Greenwater, Washington · 15018 days ago · 0 km deep · 45 km away
  10. 2.414 km SSE of Ashford, Washington · 15020 days ago · 8 km deep · 11 km away
  11. 1.6Puget Sound region, Washington · 15022 days ago · 0 km deep · 40 km away
  12. 1.515 km E of Greenwater, Washington · 15024 days ago · -1 km deep · 57 km away
  13. 1.67 km NE of Ashford, Washington · 15024 days ago · 10 km deep · 13 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10192313. Read Thu, Sep 24, 2026, 10:57 AM UTC.