Washington earthquakes

M1.5 earthquake 7 km WSW of Port Ludlow, Washington

A magnitude 1.5 earthquake struck 7 km WSW of Port Ludlow, Washington on Sat, Feb 23, 1985, 2:16 PM PST (22:16 UTC), 53 km (33 mi) below the surface.

A larger quake followed: M2.7 2 km ENE of Silvana, Washington. This one was a foreshock.

Port Ludlow 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
1985-02-23 22:16:14 UTC
Depth
53.0 km (33.0 mi), shallow
Epicenter
47.908° N, 122.786° 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 1.1 km horizontally, 1.5 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
49°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 33 in the 60 days after this one and 21 in the 30 days before it.

After

  1. 2.72 km ENE of Silvana, Washington · 15185 days ago · 4 km deep · 54 km away
  2. 2.21 km SSE of Freeland, Washington · 15184 days ago · 25 km deep · 22 km away
  3. 3.73 km E of Bethel, Washington · 15181 days ago · 47 km deep · 49 km away
  4. 3.13 km N of Bryant, Washington · 15176 days ago · 15 km deep · 62 km away
  5. 1.51 km SSE of Carnation, Washington · 15174 days ago · 11 km deep · 72 km away
  6. 1.79 km NW of Belfair, Washington · 15174 days ago · 13 km deep · 46 km away
  7. 1.65 km E of Granite Falls, WA · 15173 days ago · -1 km deep · 69 km away
  8. 1.77 km ESE of Alger, Washington · 15171 days ago · 0 km deep · 85 km away
  9. 1.527 km ENE of Amanda Park, Washington · 15168 days ago · 9 km deep · 70 km away
  10. 1.616 km NW of Amanda Park, Washington · 15164 days ago · 25 km deep · 100 km away
  11. 1.91 km SE of Shoreline, Washington · 15164 days ago · 21 km deep · 39 km away
  12. 3.52 km ENE of Rosedale, Washington · 15163 days ago · 53 km deep · 65 km away
  13. 1.64 km WSW of Monroe, Washington · 15160 days ago · -1 km deep · 57 km away
  14. 3.00 km SSW of Bellevue, Washington · 15160 days ago · 7 km deep · 55 km away
  15. 1.71 km SSE of Medina, Washington · 15160 days ago · 1 km deep · 54 km away
  16. 1.59 km WNW of Ault Field, Washington · 15157 days ago · 48 km deep · 51 km away
  17. 2.71 km WSW of Bellevue, Washington · 15157 days ago · 2 km deep · 54 km away
  18. 2.02 km SW of Bellevue, Washington · 15157 days ago · 8 km deep · 54 km away
  19. 1.56 km ENE of Snoqualmie, Washington · 15155 days ago · -1 km deep · 87 km away
  20. 2.01 km SSE of Swede Heaven, Washington · 15152 days ago · 1 km deep · 89 km away
  21. 3.36 km WSW of Lake Cavanaugh, Washington · 15150 days ago · 11 km deep · 67 km away
  22. 2.53 km SE of Swede Heaven, Washington · 15146 days ago · 0 km deep · 90 km away
  23. 1.90 km NW of Bellevue, Washington · 15144 days ago · 0 km deep · 54 km away
  24. 1.70 km NW of Lake Roesiger, Washington · 15143 days ago · 13 km deep · 64 km away
  25. 2.25 km W of Shoreline, Washington · 15137 days ago · 18 km deep · 33 km away
  26. 1.90 km E of Clyde Hill, Washington · 15133 days ago · 23 km deep · 53 km away
  27. 1.53 km WNW of North Sultan, Washington · 15132 days ago · 0 km deep · 70 km away
  28. 1.79 km NE of Snoqualmie, Washington · 15132 days ago · 14 km deep · 84 km away
  29. 1.816 km ESE of Verlot, Washington · 15131 days ago · 4 km deep · 91 km away
  30. 1.66 km SSW of Acme, Washington · 15129 days ago · -1 km deep · 93 km away
  31. 1.90 km SE of Clyde Hill, Washington · 15127 days ago · 26 km deep · 53 km away
  32. 1.65 km NNW of Woods Creek, Washington · 15125 days ago · 15 km deep · 63 km away
  33. 1.74 km SSE of Monroe, Washington · 15125 days ago · -1 km deep · 63 km away

Before

  1. 1.84 km NNE of East Renton Highlands, Washington · 15188 days ago · 15 km deep · 67 km away
  2. 1.85 km SW of Wilderness Rim, Washington · 15189 days ago · 18 km deep · 90 km away
  3. 1.64 km N of Bryant, Washington · 15190 days ago · 14 km deep · 62 km away
  4. 1.55 km W of Wilderness Rim, Washington · 15194 days ago · 25 km deep · 87 km away
  5. 2.59 km WNW of Shelton, Washington · 15199 days ago · 14 km deep · 81 km away
  6. 1.93 km WSW of Lake Marcel-Stillwater, Washington · 15200 days ago · 10 km deep · 67 km away
  7. 2.03 km WSW of North Bend, Washington · 15201 days ago · 18 km deep · 86 km away
  8. 1.81 km SE of Maplewood, Washington · 15201 days ago · 46 km deep · 60 km away
  9. 1.510 km NE of Snoqualmie, Washington · 15206 days ago · 13 km deep · 85 km away
  10. 1.96 km WSW of Lake Cavanaugh, Washington · 15206 days ago · 12 km deep · 67 km away
  11. 1.76 km WSW of Lake Cavanaugh, Washington · 15206 days ago · 12 km deep · 68 km away
  12. 1.77 km NE of Quilcene, Washington · 15206 days ago · 46 km deep · 4 km away
  13. 1.916 km W of Port Angeles, Washington · 15206 days ago · 44 km deep · 70 km away
  14. 1.60 km WNW of Everett, Washington · 15207 days ago · 18 km deep · 44 km away
  15. 1.55 km S of Lake Roesiger, Washington · 15207 days ago · -1 km deep · 64 km away
  16. 1.79 km NNE of Snoqualmie, Washington · 15208 days ago · 14 km deep · 84 km away
  17. 2.73 km SW of Wilderness Rim, Washington · 15210 days ago · 17 km deep · 91 km away
  18. 1.93 km E of Granite Falls, Washington · 15213 days ago · -1 km deep · 68 km away
  19. 1.75 km ENE of Big Lake, Washington · 15213 days ago · 8 km deep · 73 km away
  20. 2.34 km E of Edison, Washington · 15213 days ago · 14 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10187828. Read Tue, Sep 22, 2026, 8:01 AM UTC.