Washington earthquakes

M1.5 earthquake 3 km SW of Mirrormont, Washington

A magnitude 1.5 earthquake struck 3 km SW of Mirrormont, Washington on Thu, Aug 1, 1985, 11:30 PM PDT (06:30 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M1.6 4 km WSW of Monroe, Washington. This one was a foreshock.

Mirrormont 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
1.5 (md), micro
Local time
UTC
1985-08-02 06:30:25 UTC
Depth
21.3 km (13.2 mi), shallow
Epicenter
47.434° N, 122.028° 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 0.6 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
54°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 40 in the 60 days after this one and 22 in the 30 days before it.

After

  1. 1.64 km WSW of Monroe, Washington · 15026 days ago · -1 km deep · 45 km away
  2. 2.013 km E of Wilkeson, Washington · 15025 days ago · 10 km deep · 40 km away
  3. 1.67 km NE of Ashford, Washington · 15023 days ago · 10 km deep · 70 km away
  4. 1.54 km SW of Swede Heaven, Washington · 15022 days ago · 4 km deep · 93 km away
  5. 1.515 km E of Greenwater, Washington · 15022 days ago · -1 km deep · 54 km away
  6. 1.829 km NW of Leavenworth, Washington · 15021 days ago · -1 km deep · 95 km away
  7. 1.6Puget Sound region, Washington · 15020 days ago · 0 km deep · 47 km away
  8. 2.414 km SSE of Ashford, Washington · 15019 days ago · 8 km deep · 88 km away
  9. 1.58 km SSE of Greenwater, Washington · 15016 days ago · 0 km deep · 51 km away
  10. 1.72 km SSE of Crocker, Washington · 15014 days ago · 0 km deep · 41 km away
  11. 1.61 km NW of Lake Roesiger, Washington · 15011 days ago · 12 km deep · 62 km away
  12. 1.612 km ESE of Enumclaw, Washington · 15009 days ago · 1 km deep · 34 km away
  13. 1.83 km NNW of Seabeck, Washington · 15006 days ago · 50 km deep · 67 km away
  14. 1.54 km N of Seattle, Washington · 15005 days ago · 21 km deep · 33 km away
  15. 1.715 km ENE of Packwood, Washington · 15004 days ago · 5 km deep · 94 km away
  16. 1.51 km ESE of Keyport, Washington · 14998 days ago · 23 km deep · 52 km away
  17. 1.81 km NNE of Port Townsend, Washington · 14998 days ago · 20 km deep · 94 km away
  18. 2.32 km ENE of Keyport, Washington · 14995 days ago · 19 km deep · 52 km away
  19. 1.813 km ESE of Ashford, Washington · 14993 days ago · -1 km deep · 80 km away
  20. 1.822 km E of Skykomish, Washington · 14989 days ago · 0 km deep · 77 km away
  21. 1.65 km NNW of Maplewood, Washington · 14988 days ago · 17 km deep · 41 km away
  22. 2.52 km SW of Des Moines, Washington · 14988 days ago · 14 km deep · 24 km away
  23. 1.52 km SW of Des Moines, Washington · 14987 days ago · 15 km deep · 24 km away
  24. 1.530 km NW of Leavenworth, Washington · 14987 days ago · -1 km deep · 95 km away
  25. 2.37 km SSE of Carbonado, Washington · 14986 days ago · 14 km deep · 46 km away
  26. 1.812 km W of Greenwater, Washington · 14984 days ago · 14 km deep · 34 km away
  27. 3.04 km WSW of Des Moines, Washington · 14984 days ago · 19 km deep · 27 km away
  28. 1.85 km E of Hobart, Washington · 14981 days ago · 10 km deep · 10 km away
  29. 1.51 km NNW of Freeland, Washington · 14978 days ago · 18 km deep · 75 km away
  30. 2.03 km SSE of Issaquah, Washington · 14977 days ago · -1 km deep · 7 km away
  31. 1.92 km NNE of Packwood, Washington · 14976 days ago · 3 km deep · 94 km away
  32. 2.63 km NW of Redmond, Washington · 14974 days ago · 8 km deep · 31 km away
  33. 1.53 km S of Monroe, Washington · 14972 days ago · -1 km deep · 44 km away
  34. 2.23 km S of Issaquah, Washington · 14972 days ago · 0 km deep · 7 km away
  35. 1.516 km SE of Darrington, Washington · 14972 days ago · 9 km deep · 93 km away
  36. 1.82 km WNW of Navy Yard City, Washington · 14971 days ago · 13 km deep · 52 km away
  37. 2.43 km NW of Burien, Washington · 14970 days ago · 23 km deep · 27 km away
  38. 2.02 km NW of Burien, Washington · 14970 days ago · 22 km deep · 27 km away
  39. 1.83 km SSW of Swede Heaven, Washington · 14969 days ago · 2 km deep · 94 km away
  40. 2.117 km ESE of Carbonado, Washington · 14967 days ago · 16 km deep · 50 km away

Before

  1. 1.97 km SSE of Carbonado, Washington · 15027 days ago · 15 km deep · 46 km away
  2. 2.33 km SW of Swede Heaven, Washington · 15028 days ago · 2 km deep · 94 km away
  3. 1.84 km SSW of Swede Heaven, Washington · 15028 days ago · 2 km deep · 92 km away
  4. 1.74 km SSW of Swede Heaven, Washington · 15029 days ago · 0 km deep · 93 km away
  5. 1.96 km S of Ashford, Washington · 15030 days ago · 8 km deep · 82 km away
  6. 2.03 km E of Granite Falls, Washington · 15030 days ago · -1 km deep · 73 km away
  7. 3.23 km SW of Swede Heaven, Washington · 15030 days ago · 2 km deep · 94 km away
  8. 1.84 km WSW of Wilderness Rim, Washington · 15032 days ago · 17 km deep · 15 km away
  9. 1.722 km S of Greenwater, Washington · 15033 days ago · 19 km deep · 61 km away
  10. 1.529 km NW of Leavenworth, Washington · 15034 days ago · 0 km deep · 95 km away
  11. 2.17 km NE of Hoodsport, Washington · 15035 days ago · 10 km deep · 79 km away
  12. 2.56 km NE of Hoodsport, Washington · 15036 days ago · 6 km deep · 80 km away
  13. 2.27 km NNE of Hoodsport, Washington · 15037 days ago · 8 km deep · 80 km away
  14. 1.53 km N of Bryant, Washington · 15040 days ago · 14 km deep · 94 km away
  15. 1.54 km SSE of Lake McMurray, Washington · 15043 days ago · 13 km deep · 94 km away
  16. 1.84 km WSW of Gorst, Washington · 15044 days ago · 15 km deep · 56 km away
  17. 2.03 km N of Bryant, Washington · 15045 days ago · 15 km deep · 93 km away
  18. 1.94 km ENE of Southworth, Washington · 15047 days ago · 47 km deep · 33 km away
  19. 1.51 km NE of Kingston, Washington · 15048 days ago · 21 km deep · 54 km away
  20. 3.10 km NE of Inglewood-Finn Hill, Washington · 15053 days ago · 18 km deep · 36 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10191953. Read Tue, Sep 22, 2026, 10:32 PM UTC.