Washington earthquakes

M2.4 earthquake 7 km NE of Marrowstone, Washington

A magnitude 2.4 earthquake struck 7 km NE of Marrowstone, Washington on Thu, Oct 27, 1988, 11:15 PM PDT (06:15 UTC), 54 km (33 mi) below the surface.

A larger quake followed: M2.9 0 km SSW of Seabeck, 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
2.4 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1988-10-28 06:15:43 UTC
Depth
53.6 km (33.3 mi), shallow
Epicenter
48.106° N, 122.631° 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 0.9 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
38°
Stations used
34

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 9 in the 30 days before it.

After

  1. 2.90 km SSW of Seabeck, Washington · 13853 days ago · 47 km deep · 55 km away
  2. 1.78 km S of Seabeck, Washington · 13852 days ago · 23 km deep · 62 km away
  3. 2.07 km WSW of Wilderness Rim, Washington · 13847 days ago · 19 km deep · 94 km away
  4. 1.72 km ENE of Home, Washington · 13847 days ago · 27 km deep · 92 km away
  5. 1.54 km WSW of Lake Cavanaugh, Washington · 13843 days ago · 12 km deep · 47 km away
  6. 1.94 km E of Hobart, Washington · 13841 days ago · 3 km deep · 94 km away
  7. 1.713 km W of Brinnon, Washington · 13838 days ago · 48 km deep · 60 km away
  8. 1.75 km SW of Mount Vernon, Washington · 13836 days ago · 6 km deep · 37 km away
  9. 1.54 km ESE of Cathcart, Washington · 13834 days ago · 19 km deep · 54 km away
  10. 2.36 km SW of Seattle, Washington · 13828 days ago · 12 km deep · 62 km away
  11. 1.61 km N of Yarrow Point, Washington · 13827 days ago · 6 km deep · 58 km away
  12. 1.51 km N of Yarrow Point, Washington · 13826 days ago · 12 km deep · 58 km away
  13. 2.21 km E of Ferndale, Washington · 13823 days ago · 15 km deep · 83 km away
  14. 2.66 km SW of Seattle, Washington · 13822 days ago · 10 km deep · 62 km away
  15. 1.51 km SSW of Lake Roesiger, Washington · 13821 days ago · 11 km deep · 53 km away
  16. 1.51 km WSW of Issaquah, Washington · 13820 days ago · -1 km deep · 78 km away
  17. 1.82 km NNE of Yarrow Point, Washington · 13819 days ago · 0 km deep · 59 km away
  18. 1.62 km SSE of Kirkland, Washington · 13818 days ago · -1 km deep · 59 km away
  19. 2.83 km NW of Gorst, Washington · 13817 days ago · 49 km deep · 62 km away
  20. 1.50 km NE of Yarrow Point, Washington · 13817 days ago · 0 km deep · 59 km away
  21. 1.92 km SSE of Kirkland, Washington · 13810 days ago · 1 km deep · 59 km away
  22. 1.94 km SW of Victoria, Canada · 13807 days ago · 12 km deep · 66 km away
  23. 2.86 km SW of Seattle, Washington · 13801 days ago · 8 km deep · 62 km away
  24. 1.76 km SW of Seattle, Washington · 13801 days ago · 7 km deep · 62 km away
  25. 2.05 km WNW of Alger, Washington · 13800 days ago · 7 km deep · 62 km away
  26. 1.66 km NW of Belfair, Washington · 13797 days ago · 16 km deep · 71 km away
  27. 1.72 km E of Keyport, Washington · 13794 days ago · 18 km deep · 45 km away
  28. 1.62 km WSW of Redmond, Washington · 13794 days ago · 5 km deep · 61 km away

Before

  1. 2.34 km WSW of Mount Vernon, Washington · 13857 days ago · 6 km deep · 37 km away
  2. 2.83 km WSW of Mount Vernon, Washington · 13857 days ago · 6 km deep · 38 km away
  3. 2.81 km NE of Edmonds, Washington · 13859 days ago · 19 km deep · 38 km away
  4. 1.66 km W of Wilderness Rim, Washington · 13860 days ago · 18 km deep · 94 km away
  5. 1.62 km SSE of Klahanie, Washington · 13863 days ago · 14 km deep · 78 km away
  6. 1.73 km ESE of Ravensdale, Washington · 13868 days ago · 9 km deep · 100 km away
  7. 1.79 km NE of Snoqualmie, Washington · 13869 days ago · 5 km deep · 88 km away
  8. 1.61 km NNE of White Center, Washington · 13870 days ago · 23 km deep · 68 km away
  9. 2.12 km SE of Kirkland, Washington · 13871 days ago · 0 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10236973. Read Fri, Oct 2, 2026, 11:44 PM UTC.