Washington earthquakes

M1.7 earthquake 0 km NNW of Clyde Hill, Washington

A magnitude 1.7 earthquake struck 0 km NNW of Clyde Hill, Washington on Wed, Dec 7, 1977, 12:51 AM PST (08:51 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M2.1 1 km WNW of Indianola, Washington. This one was a foreshock.

Clyde Hill 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
1977-12-07 08:51:53 UTC
Depth
20.6 km (12.8 mi), shallow
Epicenter
47.633° N, 122.219° 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 0.7 km horizontally, 1.3 km in depth
Depth from
From location
Station coverage gap
113°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.11 km WNW of Indianola, Washington · 17819 days ago · 18 km deep · 28 km away
  2. 1.57 km WNW of Swede Heaven, Washington · 17817 days ago · 6 km deep · 80 km away
  3. 1.87 km NNE of Bryant, Washington · 17816 days ago · 2 km deep · 75 km away
  4. 1.63 km W of Suquamish, Washington · 17814 days ago · 24 km deep · 30 km away
  5. 1.54 km NW of Black Diamond, Washington · 17810 days ago · 12 km deep · 36 km away
  6. 1.54 km ESE of Indianola, Washington · 17810 days ago · 15 km deep · 22 km away
  7. 1.63 km W of Chico, Washington · 17809 days ago · 19 km deep · 41 km away
  8. 1.94 km NNE of Woods Creek, Washington · 17805 days ago · 12 km deep · 41 km away
  9. 1.60 km N of Southworth, Washington · 17805 days ago · 18 km deep · 25 km away
  10. 2.26 km SSE of Port Angeles East, Washington · 17801 days ago · 44 km deep · 95 km away
  11. 2.118 km N of Index, Washington · 17801 days ago · 5 km deep · 66 km away
  12. 1.718 km N of Index, Washington · 17801 days ago · 5 km deep · 66 km away
  13. 1.719 km N of Index, Washington · 17801 days ago · 8 km deep · 66 km away
  14. 1.817 km NE of May Creek, Washington · 17801 days ago · 8 km deep · 65 km away
  15. 2.09 km ENE of Carnation, Washington · 17801 days ago · 16 km deep · 32 km away
  16. 1.518 km S of Friday Harbor, Washington · 17801 days ago · 0 km deep · 100 km away
  17. 1.62 km NW of Maple Valley, Washington · 17798 days ago · 17 km deep · 27 km away
  18. 1.95 km SE of Monroe, Washington · 17797 days ago · 9 km deep · 30 km away
  19. 2.420 km NNW of Hoodsport, Washington · 17792 days ago · 42 km deep · 77 km away
  20. 2.02 km SE of Bangor Trident Base, Washington · 17786 days ago · 48 km deep · 36 km away
  21. 1.71 km NNE of Cathcart, Washington · 17778 days ago · 17 km deep · 27 km away
  22. 2.36 km NNE of Lofall, Washington · 17771 days ago · 19 km deep · 40 km away
  23. 2.010 km SSW of Shelton, Washington · 17771 days ago · 47 km deep · 90 km away
  24. 1.53 km WSW of Wilderness Rim, Washington · 17770 days ago · 19 km deep · 38 km away
  25. 1.64 km SSW of Orting, Washington · 17763 days ago · -1 km deep · 64 km away

Before

  1. 1.821 km SE of Carbonado, Washington · 17827 days ago · 17 km deep · 80 km away
  2. 2.124 km N of Packwood, Washington · 17829 days ago · 5 km deep · 98 km away
  3. 1.91 km NE of Maple Heights-Lake Desire, Washington · 17833 days ago · 16 km deep · 22 km away
  4. 2.32 km WNW of La Conner, Washington · 17845 days ago · 22 km deep · 88 km away
  5. 1.92 km SW of Ashford, Washington · 17845 days ago · -1 km deep · 100 km away
  6. 1.92 km WSW of Ashford, Washington · 17845 days ago · 0 km deep · 99 km away
  7. 1.92 km SSE of Three Lakes, Washington · 17846 days ago · 8 km deep · 36 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10845308. Read Tue, Sep 22, 2026, 8:55 AM UTC.