Washington earthquakes

M1.7 earthquake 9 km NNE of Snoqualmie, Washington

A magnitude 1.7 earthquake struck 9 km NNE of Snoqualmie, Washington on Fri, Feb 1, 1985, 10:11 AM PST (18:11 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M1.9 6 km WSW of Lake Cavanaugh, Washington. This one was a foreshock.

Snoqualmie 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
1.7 (md), micro
Local time
UTC
1985-02-01 18:11:58 UTC
Depth
14.0 km (8.7 mi), shallow
Epicenter
47.601° N, 121.755° 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 0.4 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
78°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 25 in the 30 days before it.

After

  1. 1.55 km S of Lake Roesiger, Washington · 15207 days ago · -1 km deep · 39 km away
  2. 1.60 km WNW of Everett, Washington · 15207 days ago · 18 km deep · 54 km away
  3. 1.77 km NE of Quilcene, Washington · 15206 days ago · 46 km deep · 85 km away
  4. 1.76 km WSW of Lake Cavanaugh, Washington · 15206 days ago · 12 km deep · 83 km away
  5. 1.96 km WSW of Lake Cavanaugh, Washington · 15206 days ago · 12 km deep · 83 km away
  6. 1.510 km NE of Snoqualmie, Washington · 15205 days ago · 13 km deep · 1 km away
  7. 1.815 km NNE of Ashford, Washington · 15203 days ago · 10 km deep · 81 km away
  8. 1.81 km SE of Maplewood, Washington · 15201 days ago · 46 km deep · 63 km away
  9. 2.03 km WSW of North Bend, Washington · 15200 days ago · 18 km deep · 15 km away
  10. 1.93 km WSW of Lake Marcel-Stillwater, Washington · 15200 days ago · 10 km deep · 18 km away
  11. 1.55 km W of Wilderness Rim, Washington · 15193 days ago · 25 km deep · 18 km away
  12. 1.64 km N of Bryant, Washington · 15190 days ago · 14 km deep · 81 km away
  13. 1.85 km SW of Wilderness Rim, Washington · 15189 days ago · 18 km deep · 21 km away
  14. 1.84 km NNE of East Renton Highlands, Washington · 15188 days ago · 15 km deep · 27 km away
  15. 1.57 km WSW of Port Ludlow, Washington · 15185 days ago · 53 km deep · 84 km away
  16. 2.72 km ENE of Silvana, Washington · 15185 days ago · 4 km deep · 76 km away
  17. 2.21 km SSE of Freeland, Washington · 15184 days ago · 25 km deep · 72 km away
  18. 3.73 km E of Bethel, Washington · 15181 days ago · 47 km deep · 64 km away
  19. 3.13 km N of Bryant, Washington · 15176 days ago · 15 km deep · 80 km away
  20. 1.51 km SSE of Carnation, Washington · 15174 days ago · 11 km deep · 12 km away
  21. 1.79 km NW of Belfair, Washington · 15174 days ago · 13 km deep · 89 km away
  22. 1.59 km E of Ashford, Washington · 15173 days ago · 5 km deep · 94 km away
  23. 1.65 km E of Granite Falls, WA · 15173 days ago · -1 km deep · 56 km away
  24. 2.53 km SSW of Greenwater, Washington · 15164 days ago · 16 km deep · 53 km away
  25. 1.91 km SE of Shoreline, Washington · 15164 days ago · 21 km deep · 46 km away
  26. 3.52 km ENE of Rosedale, Washington · 15162 days ago · 53 km deep · 71 km away
  27. 1.64 km WSW of Monroe, Washington · 15160 days ago · -1 km deep · 33 km away
  28. 3.00 km SSW of Bellevue, Washington · 15160 days ago · 7 km deep · 34 km away
  29. 1.71 km SSE of Medina, Washington · 15160 days ago · 1 km deep · 35 km away
  30. 2.634 km NNW of Leavenworth, Washington · 15157 days ago · 1 km deep · 74 km away
  31. 2.71 km WSW of Bellevue, Washington · 15157 days ago · 2 km deep · 34 km away
  32. 2.02 km SW of Bellevue, Washington · 15156 days ago · 8 km deep · 35 km away
  33. 1.56 km ENE of Snoqualmie, Washington · 15155 days ago · -1 km deep · 5 km away
  34. 1.54 km SSW of Orting, Washington · 15153 days ago · 0 km deep · 69 km away
  35. 2.01 km SSE of Swede Heaven, Washington · 15152 days ago · 1 km deep · 75 km away
  36. 3.36 km WSW of Lake Cavanaugh, Washington · 15150 days ago · 11 km deep · 83 km away

Before

  1. 2.73 km SW of Wilderness Rim, Washington · 15210 days ago · 17 km deep · 20 km away
  2. 1.93 km E of Granite Falls, Washington · 15213 days ago · -1 km deep · 56 km away
  3. 1.75 km ENE of Big Lake, Washington · 15213 days ago · 8 km deep · 96 km away
  4. 1.65 km E of Lake Bosworth, Washington · 15215 days ago · -1 km deep · 51 km away
  5. 2.25 km SW of Woodway, Washington · 15216 days ago · 18 km deep · 54 km away
  6. 2.65 km SW of Woodway, Washington · 15217 days ago · 18 km deep · 54 km away
  7. 2.713 km NNE of Ashford, Washington · 15218 days ago · 12 km deep · 84 km away
  8. 1.74 km NNE of Bangor Trident Base, Washington · 15219 days ago · 17 km deep · 73 km away
  9. 1.73 km SW of Easton, Washington · 15220 days ago · 4 km deep · 59 km away
  10. 1.73 km E of Hobart, Washington · 15221 days ago · 3 km deep · 24 km away
  11. 1.92 km SW of Easton, Washington · 15224 days ago · 5 km deep · 59 km away
  12. 2.48 km NNE of Lake Marcel-Stillwater, Washington · 15228 days ago · 1 km deep · 19 km away
  13. 1.78 km SSE of Leavenworth, Washington · 15229 days ago · 1 km deep · 85 km away
  14. 3.38 km N of Quilcene, Washington · 15229 days ago · 21 km deep · 90 km away
  15. 2.58 km NNE of Lake Marcel-Stillwater, Washington · 15230 days ago · 0 km deep · 19 km away
  16. 1.86 km ESE of Carnation, Washington · 15230 days ago · 12 km deep · 7 km away
  17. 2.32 km ENE of City of Sammamish, Washington · 15230 days ago · 6 km deep · 19 km away
  18. 1.510 km ENE of Ashford, Washington · 15231 days ago · 9 km deep · 89 km away
  19. 1.74 km ENE of Bonney Lake, Washington · 15231 days ago · 6 km deep · 53 km away
  20. 1.64 km SW of Wilderness Rim, Washington · 15232 days ago · 18 km deep · 20 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10185308. Read Tue, Sep 22, 2026, 4:35 AM UTC.