Washington earthquakes

M1.7 earthquake 15 km ENE of Skykomish, Washington

A magnitude 1.7 earthquake struck 15 km ENE of Skykomish, Washington on Wed, Aug 1, 1990, 7:12 AM PDT (14:12 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M2.4 6 km W of Lake Cavanaugh, 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
1.7 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-08-01 14:12:05 UTC
Depth
1.2 km (0.7 mi), shallow
Epicenter
47.737° N, 121.157° 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 1.5 km horizontally, 3.3 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
101°
Stations used
21

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 14 in the 30 days before it.

After

  1. 1.73 km N of Entiat, Washington · 13212 days ago · 2 km deep · 71 km away
  2. 1.539 km WNW of Granite Falls, Washington · 13212 days ago · 6 km deep · 49 km away
  3. 1.91 km ESE of Pacific, Washington · 13208 days ago · 10 km deep · 96 km away
  4. 1.72 km SW of North Bend, Washington · 13203 days ago · -1 km deep · 56 km away
  5. 1.82 km WNW of Inglewood-Finn Hill, Washington · 13201 days ago · 21 km deep · 83 km away
  6. 1.73 km E of Granite Falls, Washington · 13199 days ago · 0 km deep · 69 km away
  7. 1.87 km SSE of Darrington, Washington · 13199 days ago · 4 km deep · 59 km away
  8. 1.65 km NE of Bryant, Washington · 13197 days ago · 11 km deep · 93 km away
  9. 1.73 km E of Union Hill-Novelty Hill, Washington · 13196 days ago · 11 km deep · 62 km away
  10. 1.86 km W of Entiat, Washington · 13195 days ago · -1 km deep · 65 km away
  11. 1.812 km E of Carnation, Washington · 13195 days ago · -1 km deep · 45 km away
  12. 1.61 km S of Normandy Park, Washington · 13190 days ago · 15 km deep · 96 km away
  13. 1.517 km SSW of Skykomish, Washington · 13187 days ago · 95 km deep · 31 km away
  14. 1.61 km ESE of Entiat, Washington · 13185 days ago · -1 km deep · 73 km away
  15. 2.02 km SSW of North Bend, Washington · 13184 days ago · -1 km deep · 56 km away
  16. 1.95 km WSW of Black Diamond, Washington · 13183 days ago · 20 km deep · 85 km away
  17. 1.85 km SSW of Fall City, Washington · 13180 days ago · 14 km deep · 62 km away
  18. 2.46 km W of Lake Cavanaugh, Washington · 13179 days ago · 8 km deep · 95 km away
  19. 2.14 km ESE of Cathcart, Washington · 13178 days ago · 15 km deep · 67 km away
  20. 1.70 km ESE of Cottage Lake, Washington · 13169 days ago · 12 km deep · 68 km away
  21. 1.85 km WSW of Snoqualmie, Washington · 13164 days ago · 20 km deep · 61 km away
  22. 1.84 km WNW of Cliffdell, Washington · 13161 days ago · -1 km deep · 86 km away
  23. 1.60 km ENE of Mercer Island, Washington · 13155 days ago · 20 km deep · 81 km away
  24. 1.935 km WSW of Twisp, Washington · 13154 days ago · 6 km deep · 71 km away
  25. 1.63 km N of Waterville, Washington · 13153 days ago · 5 km deep · 81 km away

Before

  1. 2.03 km ENE of Bainbridge Island, Washington · 13213 days ago · 18 km deep · 99 km away
  2. 1.53 km N of May Creek, Washington · 13215 days ago · 10 km deep · 42 km away
  3. 3.03 km ENE of Bainbridge Island, Washington · 13217 days ago · 22 km deep · 100 km away
  4. 2.12 km WSW of Normandy Park, Washington · 13218 days ago · 4 km deep · 97 km away
  5. 1.627 km SSE of Greenwater, Washington · 13221 days ago · 3 km deep · 96 km away
  6. 1.827 km SSE of Greenwater, Washington · 13221 days ago · 3 km deep · 96 km away
  7. 1.51 km SE of Snohomish, Washington · 13222 days ago · 21 km deep · 72 km away
  8. 2.01 km SSE of Snohomish, Washington · 13222 days ago · 21 km deep · 72 km away
  9. 2.13 km ENE of Bonney Lake, Washington · 13229 days ago · 16 km deep · 96 km away
  10. 1.61 km ESE of Clyde Hill, Washington · 13229 days ago · 23 km deep · 79 km away
  11. 2.13 km NW of Maple Valley, Washington · 13231 days ago · 4 km deep · 78 km away
  12. 1.91 km NNE of Yarrow Point, Washington · 13233 days ago · 0 km deep · 79 km away
  13. 1.78 km ENE of Cashmere, Washington · 13241 days ago · 7 km deep · 63 km away
  14. 1.68 km S of Leavenworth, Washington · 13242 days ago · 0 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10259848. Read Sun, Oct 4, 2026, 3:24 AM UTC.