Washington earthquakes

M1.9 earthquake 6 km ESE of Edison, Washington

A magnitude 1.9 earthquake struck 6 km ESE of Edison, Washington on Fri, Jul 15, 1977, 2:36 AM PDT (09:36 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.3 4 km N of Duvall, 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
1.9 (md), micro
Local time
UTC
1977-07-15 09:36:16 UTC
Depth
5.3 km (3.3 mi), shallow
Epicenter
48.543° N, 122.359° 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 0.8 km horizontally, 2.2 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
204°, poorly surrounded by stations
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: 15 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 3.34 km N of Duvall, Washington · 17966 days ago · 23 km deep · 89 km away
  2. 2.52 km WNW of Clearview, Washington · 17961 days ago · 55 km deep · 79 km away
  3. 3.75 km NW of Port Hadlock-Irondale, Washington · 17956 days ago · 53 km deep · 64 km away
  4. 2.02 km NNE of Duvall, Washington · 17950 days ago · 19 km deep · 92 km away
  5. 2.70 km W of Alderwood Manor, Washington · 17945 days ago · 14 km deep · 80 km away
  6. 1.51 km NNE of Lynnwood, Washington · 17945 days ago · 2 km deep · 79 km away
  7. 1.74 km NE of Kingston, Washington · 17942 days ago · 18 km deep · 79 km away
  8. 1.55 km NNW of Port Townsend, Washington · 17940 days ago · 20 km deep · 54 km away
  9. 1.71 km WNW of Mountlake Terrace, Washington · 17937 days ago · 14 km deep · 83 km away
  10. 2.43 km S of Woods Creek, Washington · 17932 days ago · 2 km deep · 85 km away
  11. 2.05 km N of Arlington Heights, Washington · 17931 days ago · 0 km deep · 39 km away
  12. 2.05 km SW of Bellingham, Washington · 17930 days ago · 15 km deep · 24 km away
  13. 2.36 km SE of Marrowstone, Washington · 17930 days ago · 21 km deep · 63 km away
  14. 1.79 km S of Marietta, Washington · 17923 days ago · 22 km deep · 25 km away
  15. 1.72 km ENE of Union Hill-Novelty Hill, Washington · 17916 days ago · 23 km deep · 99 km away

Before

  1. 1.56 km NNE of Duvall, Washington · 17970 days ago · 24 km deep · 88 km away
  2. 3.63 km ENE of Edison, Washington · 17971 days ago · 12 km deep · 5 km away
  3. 2.68 km ESE of Deming, Washington · 17977 days ago · -1 km deep · 34 km away
  4. 2.10 km SSE of Bryant, Washington · 17980 days ago · 0 km deep · 38 km away
  5. 1.77 km SE of Orcas, Washington · 17984 days ago · 0 km deep · 38 km away
  6. 2.04 km WNW of Northwest Stanwood, Washington · 17994 days ago · 21 km deep · 29 km away
  7. 1.73 km W of Orcas, Washington · 17994 days ago · 11 km deep · 47 km away
  8. 4.04 km N of Bangor Trident Base, Washington · 17994 days ago · 19 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10844108. Read Tue, Sep 22, 2026, 3:55 PM UTC.