Washington earthquakes

M3.6 earthquake 3 km ENE of Edison, Washington

A magnitude 3.6 earthquake struck 3 km ENE of Edison, Washington on Sun, Jul 10, 1977, 12:19 AM PDT (07:19 UTC), 12 km (8 mi) below the surface.

A larger quake followed: M3.7 5 km NW of Port Hadlock-Irondale, 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
3.6 (md), minor
Local time
UTC
1977-07-10 07:19:30 UTC
Depth
12.1 km (7.5 mi), shallow
Epicenter
48.578° N, 122.400° 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 2.1 km horizontally, 3.9 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
172°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.56 km NNE of Duvall, Washington · 17969 days ago · 24 km deep · 93 km away
  2. 1.96 km ESE of Edison, Washington · 17966 days ago · 5 km deep · 5 km away
  3. 3.34 km N of Duvall, Washington · 17966 days ago · 23 km deep · 94 km away
  4. 2.52 km WNW of Clearview, Washington · 17960 days ago · 55 km deep · 84 km away
  5. 3.75 km NW of Port Hadlock-Irondale, Washington · 17955 days ago · 53 km deep · 66 km away
  6. 2.02 km NNE of Duvall, Washington · 17949 days ago · 19 km deep · 96 km away
  7. 2.70 km W of Alderwood Manor, Washington · 17945 days ago · 14 km deep · 84 km away
  8. 1.51 km NNE of Lynnwood, Washington · 17944 days ago · 2 km deep · 83 km away
  9. 1.74 km NE of Kingston, Washington · 17942 days ago · 18 km deep · 83 km away
  10. 1.55 km NNW of Port Townsend, Washington · 17940 days ago · 20 km deep · 55 km away
  11. 1.71 km WNW of Mountlake Terrace, Washington · 17936 days ago · 14 km deep · 87 km away
  12. 2.43 km S of Woods Creek, Washington · 17932 days ago · 2 km deep · 89 km away
  13. 2.05 km N of Arlington Heights, Washington · 17931 days ago · 0 km deep · 44 km away
  14. 2.05 km SW of Bellingham, Washington · 17930 days ago · 15 km deep · 19 km away
  15. 2.36 km SE of Marrowstone, Washington · 17929 days ago · 21 km deep · 66 km away
  16. 1.79 km S of Marietta, Washington · 17923 days ago · 22 km deep · 20 km away

Before

  1. 2.68 km ESE of Deming, Washington · 17977 days ago · -1 km deep · 32 km away
  2. 2.10 km SSE of Bryant, Washington · 17980 days ago · 0 km deep · 42 km away
  3. 1.77 km SE of Orcas, Washington · 17983 days ago · 0 km deep · 35 km away
  4. 2.04 km WNW of Northwest Stanwood, Washington · 17993 days ago · 21 km deep · 33 km away
  5. 1.73 km W of Orcas, Washington · 17993 days ago · 11 km deep · 44 km away
  6. 4.04 km N of Bangor Trident Base, Washington · 17994 days ago · 19 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10844038 (also filed as usp0000pp0). Read Tue, Sep 22, 2026, 5:06 AM UTC.