Washington earthquakes

M1.5 earthquake 1 km N of Seattle, Washington

A magnitude 1.5 earthquake struck 1 km N of Seattle, Washington on Thu, Apr 11, 1974, 8:51 PM PDT (03:51 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M1.8 8 km E of Ashford, 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), micro
Local time
UTC
1974-04-12 03:51:36 UTC
Depth
-0.9 km (-0.5 mi), shallow
Epicenter
47.620° N, 122.330° 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
±0.11
Depth from
Operator assigned
Station coverage gap
114°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 31 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 1.88 km E of Ashford, Washington · 19154 days ago · 19 km deep · 100 km away
  2. 2.4Washington · 19154 days ago · 24 km deep · 94 km away
  3. 1.58 km NNE of Ashford, Washington · 19151 days ago · 7 km deep · 92 km away
  4. 2.13 km SW of Three Lakes, Washington · 19148 days ago · 9 km deep · 40 km away
  5. 1.50 km WNW of Maple Valley, Washington · 19148 days ago · 2 km deep · 32 km away
  6. 1.65 km WSW of Wilderness Rim, Washington · 19148 days ago · 16 km deep · 42 km away
  7. 1.60 km ENE of Edmonds, Washington · 19147 days ago · 8 km deep · 22 km away
  8. 1.60 km E of White Center, Washington · 19143 days ago · 23 km deep · 12 km away
  9. 1.60 km WNW of Bangor Trident Base, Washington · 19141 days ago · 17 km deep · 32 km away
  10. 1.525 km ENE of Ashford, Washington · 19129 days ago · 6 km deep · 93 km away
  11. 1.67 km NW of Belfair, Washington · 19124 days ago · 13 km deep · 45 km away
  12. 4.08 km ESE of Jamestown, Washington · 19122 days ago · 48 km deep · 72 km away
  13. 2.025 km N of Packwood, Washington · 19121 days ago · 8 km deep · 99 km away
  14. 2.117 km NE of Snoqualmie, Washington · 19119 days ago · 3 km deep · 50 km away
  15. 1.64 km SW of Wilderness Rim, Washington · 19117 days ago · 21 km deep · 45 km away
  16. 1.93 km SW of Wilderness Rim, Washington · 19117 days ago · 18 km deep · 45 km away
  17. 3.03 km WSW of Ravensdale, Washington · 19116 days ago · 18 km deep · 38 km away
  18. 1.93 km NE of Maple Heights-Lake Desire, Washington · 19115 days ago · 11 km deep · 26 km away
  19. 2.01 km E of Skokomish, Washington · 19114 days ago · 45 km deep · 68 km away
  20. 2.22 km WNW of Hobart, Washington · 19114 days ago · 15 km deep · 32 km away
  21. 3.34 km SE of Lake Roesiger, Washington · 19114 days ago · 17 km deep · 50 km away
  22. 1.94 km SE of Lake Roesiger, Washington · 19114 days ago · 11 km deep · 50 km away
  23. 1.52 km SSE of Lake Roesiger, Washington · 19113 days ago · 14 km deep · 49 km away
  24. 1.70 km E of Ravensdale, Washington · 19112 days ago · 16 km deep · 40 km away
  25. 1.61 km SSW of Ravensdale, Washington · 19112 days ago · 18 km deep · 40 km away
  26. 2.26 km NW of Roy, Washington · 19105 days ago · 12 km deep · 66 km away
  27. 1.61 km SSE of Seattle, Washington · 19103 days ago · 5 km deep · 3 km away
  28. 2.04 km WSW of Seattle, Washington · 19103 days ago · 2 km deep · 6 km away
  29. 1.73 km SW of Seattle, Washington · 19103 days ago · 3 km deep · 5 km away
  30. 1.93 km NE of Quilcene, Washington · 19098 days ago · 17 km deep · 45 km away
  31. 1.813 km NE of Ashford, Washington · 19097 days ago · 5 km deep · 90 km away

Before

  1. 2.30 km NE of Seattle, Washington · 19158 days ago · -1 km deep · 1 km away
  2. 2.01 km WSW of Mercer Island, Washington · 19161 days ago · 0 km deep · 9 km away
  3. 2.42 km SW of Medina, Washington · 19185 days ago · 5 km deep · 6 km away
  4. 1.52 km ENE of Bonney Lake, Washington · 19186 days ago · 17 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10858418. Read Tue, Sep 22, 2026, 9:38 PM UTC.