Washington earthquakes

M1.5 earthquake 15 km E of Greenwater, Washington

A magnitude 1.5 earthquake struck 15 km E of Greenwater, Washington on Tue, Aug 6, 1985, 10:00 AM PDT (17:00 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
1.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1985-08-06 17:00:19 UTC
Depth
-1.2 km (-0.7 mi), shallow
Epicenter
47.153° N, 121.452° 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, 0.5 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
80°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 28 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.829 km NW of Leavenworth, Washington · 15030 days ago · -1 km deep · 85 km away
  2. 1.6Puget Sound region, Washington · 15029 days ago · 0 km deep · 56 km away
  3. 2.414 km SSE of Ashford, Washington · 15028 days ago · 8 km deep · 68 km away
  4. 1.58 km SSE of Greenwater, Washington · 15025 days ago · 0 km deep · 13 km away
  5. 1.72 km SSE of Crocker, Washington · 15023 days ago · 0 km deep · 49 km away
  6. 1.612 km ESE of Enumclaw, Washington · 15018 days ago · 1 km deep · 30 km away
  7. 1.811 km SW of Ellensburg, Washington · 15015 days ago · 9 km deep · 66 km away
  8. 1.54 km N of Seattle, Washington · 15014 days ago · 21 km deep · 86 km away
  9. 1.715 km ENE of Packwood, Washington · 15012 days ago · 5 km deep · 53 km away
  10. 1.813 km ESE of Ashford, Washington · 15002 days ago · -1 km deep · 57 km away
  11. 1.822 km E of Skykomish, Washington · 14998 days ago · 0 km deep · 65 km away
  12. 1.65 km NNW of Maplewood, Washington · 14997 days ago · 17 km deep · 91 km away
  13. 2.52 km SW of Des Moines, Washington · 14997 days ago · 14 km deep · 72 km away
  14. 1.52 km SW of Des Moines, Washington · 14996 days ago · 15 km deep · 72 km away
  15. 1.530 km NW of Leavenworth, Washington · 14996 days ago · -1 km deep · 85 km away
  16. 2.37 km SSE of Carbonado, Washington · 14995 days ago · 14 km deep · 45 km away
  17. 1.812 km W of Greenwater, Washington · 14993 days ago · 14 km deep · 28 km away
  18. 3.04 km WSW of Des Moines, Washington · 14992 days ago · 19 km deep · 75 km away
  19. 1.85 km E of Hobart, Washington · 14990 days ago · 10 km deep · 46 km away
  20. 2.03 km SSE of Issaquah, Washington · 14986 days ago · -1 km deep · 58 km away
  21. 1.92 km NNE of Packwood, Washington · 14985 days ago · 3 km deep · 60 km away
  22. 2.63 km NW of Redmond, Washington · 14983 days ago · 8 km deep · 80 km away
  23. 1.53 km S of Monroe, Washington · 14981 days ago · -1 km deep · 84 km away
  24. 2.23 km S of Issaquah, Washington · 14981 days ago · 0 km deep · 58 km away
  25. 2.43 km NW of Burien, Washington · 14978 days ago · 23 km deep · 79 km away
  26. 2.02 km NW of Burien, Washington · 14978 days ago · 22 km deep · 79 km away
  27. 2.117 km ESE of Carbonado, Washington · 14976 days ago · 16 km deep · 36 km away
  28. 1.5Washington · 14973 days ago · -1 km deep · 41 km away

Before

  1. 1.67 km NE of Ashford, Washington · 15031 days ago · 10 km deep · 55 km away
  2. 2.013 km E of Wilkeson, Washington · 15034 days ago · 10 km deep · 33 km away
  3. 1.76 km NW of Tieton, Washington · 15034 days ago · 5 km deep · 66 km away
  4. 1.64 km WSW of Monroe, Washington · 15035 days ago · -1 km deep · 87 km away
  5. 1.53 km SW of Mirrormont, Washington · 15035 days ago · 21 km deep · 54 km away
  6. 1.97 km SSE of Carbonado, Washington · 15036 days ago · 15 km deep · 44 km away
  7. 1.96 km S of Ashford, Washington · 15038 days ago · 8 km deep · 66 km away
  8. 1.84 km WSW of Wilderness Rim, Washington · 15041 days ago · 17 km deep · 42 km away
  9. 1.722 km S of Greenwater, Washington · 15042 days ago · 19 km deep · 25 km away
  10. 1.529 km NW of Leavenworth, Washington · 15043 days ago · 0 km deep · 84 km away
  11. 1.76 km SSW of Morton, Washington · 15053 days ago · 18 km deep · 97 km away
  12. 1.94 km ENE of Southworth, Washington · 15056 days ago · 47 km deep · 86 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10192863. Read Thu, Oct 1, 2026, 4:26 PM UTC.