Washington earthquakes

M1.5 earthquake 1 km E of Clyde Hill, Washington

A magnitude 1.5 earthquake struck 1 km E of Clyde Hill, Washington on Thu, Oct 4, 1990, 3:37 AM PDT (10:37 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M2.7 1 km ESE of Esperance, 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
1.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1990-10-04 10:37:10 UTC
Depth
23.9 km (14.9 mi), shallow
Epicenter
47.632° N, 122.204° 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 0.5 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
62°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.83 km SW of Snoqualmie, Washington · 13141 days ago · 19 km deep · 30 km away
  2. 2.027 km ENE of Ashford, Washington · 13140 days ago · -2 km deep · 91 km away
  3. 1.57 km N of Port Townsend, Washington · 13134 days ago · 25 km deep · 75 km away
  4. 1.55 km NW of Federal Way, Washington · 13133 days ago · 18 km deep · 32 km away
  5. 2.62 km SW of Rocky Point, Washington · 13127 days ago · 18 km deep · 37 km away
  6. 1.724 km SE of Carbonado, Washington · 13126 days ago · -1 km deep · 82 km away
  7. 2.315 km ESE of Kapowsin, Washington · 13122 days ago · 6 km deep · 81 km away
  8. 1.615 km ESE of Kapowsin, Washington · 13122 days ago · 6 km deep · 81 km away
  9. 1.52 km NNE of Maple Heights-Lake Desire, Washington · 13121 days ago · 17 km deep · 21 km away
  10. 1.926 km ENE of Ashford, Washington · 13119 days ago · -2 km deep · 89 km away
  11. 2.71 km ESE of Esperance, Washington · 13119 days ago · 23 km deep · 20 km away
  12. 2.53 km SE of Grapeview, Washington · 13111 days ago · 18 km deep · 58 km away
  13. 1.616 km E of Verlot, Washington · 13110 days ago · 1 km deep · 69 km away
  14. 1.723 km ENE of Ashford, Washington · 13107 days ago · -2 km deep · 92 km away
  15. 2.65 km S of Port Hadlock-Irondale, Washington · 13099 days ago · 16 km deep · 58 km away
  16. 1.64 km SE of Freeland, Washington · 13096 days ago · 23 km deep · 45 km away
  17. 2.01 km SW of Meadowdale, Washington · 13091 days ago · 24 km deep · 26 km away

Before

  1. 2.621 km ESE of Darrington, Washington · 13148 days ago · 0 km deep · 93 km away
  2. 1.57 km NE of Duvall, Washington · 13149 days ago · 8 km deep · 28 km away
  3. 1.60 km ENE of Mercer Island, Washington · 13154 days ago · 20 km deep · 6 km away
  4. 1.85 km WSW of Snoqualmie, Washington · 13162 days ago · 20 km deep · 26 km away
  5. 1.525 km ENE of Ashford, Washington · 13163 days ago · -2 km deep · 91 km away
  6. 1.99 km ENE of Hoodsport, Washington · 13165 days ago · 7 km deep · 66 km away
  7. 2.7Washington · 13166 days ago · 20 km deep · 99 km away
  8. 1.70 km ESE of Cottage Lake, Washington · 13168 days ago · 12 km deep · 16 km away
  9. 3.03 km S of Shelton, Washington · 13171 days ago · 17 km deep · 84 km away
  10. 1.524 km ENE of Ashford, Washington · 13171 days ago · -2 km deep · 92 km away
  11. 1.717 km ENE of Ashford, Washington · 13171 days ago · -1 km deep · 94 km away
  12. 2.221 km W of Quilcene, Washington · 13174 days ago · 17 km deep · 75 km away
  13. 2.14 km ESE of Cathcart, Washington · 13177 days ago · 15 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10265723. Read Fri, Oct 2, 2026, 8:08 PM UTC.