Washington earthquakes

M1.7 earthquake 0 km NNE of Normandy Park, Washington

A magnitude 1.7 earthquake struck 0 km NNE of Normandy Park, Washington on Sat, Feb 22, 1986, 1:59 AM PST (09:59 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M2.9 4 km NNE of Ruston, Washington. This one was a foreshock.

Normandy Park 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, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1986-02-22 09:59:30 UTC
Depth
17.8 km (11.1 mi), shallow
Epicenter
47.438° N, 122.340° 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 0.6 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
77°
Stations used
20

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 12 in the 30 days before it.

After

  1. 1.74 km SW of Seattle, Washington · 14832 days ago · 7 km deep · 16 km away
  2. 1.511 km SE of Greenwater, Washington · 14827 days ago · 6 km deep · 72 km away
  3. 2.13 km SSE of Klahanie, Washington · 14824 days ago · 15 km deep · 29 km away
  4. 2.04 km NE of Snoqualmie, Washington · 14823 days ago · 10 km deep · 44 km away
  5. 1.74 km E of Lake Marcel-Stillwater, Washington · 14819 days ago · 17 km deep · 46 km away
  6. 2.03 km ESE of Key Center, Washington · 14818 days ago · 13 km deep · 30 km away
  7. 2.94 km NNE of Ruston, Washington · 14815 days ago · 7 km deep · 16 km away
  8. 1.95 km SW of La Grande, Washington · 14812 days ago · -1 km deep · 71 km away
  9. 1.92 km SE of Buckley, Washington · 14803 days ago · 10 km deep · 41 km away
  10. 1.9Washington · 14801 days ago · 21 km deep · 93 km away
  11. 1.63 km WNW of Picnic Point, Washington · 14800 days ago · 9 km deep · 51 km away
  12. 1.77 km SSW of Snoqualmie Pass, Washington · 14799 days ago · 13 km deep · 67 km away
  13. 1.83 km ENE of East Renton Highlands, Washington · 14798 days ago · 0 km deep · 21 km away
  14. 2.24 km ENE of Carnation, Washington · 14797 days ago · 17 km deep · 44 km away
  15. 2.40 km ESE of Clyde Hill, Washington · 14795 days ago · 24 km deep · 24 km away
  16. 1.53 km WNW of Ashford, Washington · 14795 days ago · 25 km deep · 77 km away
  17. 2.04 km NNW of Woods Creek, Washington · 14788 days ago · 16 km deep · 62 km away

Before

  1. 1.63 km E of Granite Falls, Washington · 14833 days ago · -1 km deep · 79 km away
  2. 2.10 km WNW of Normandy Park, Washington · 14837 days ago · 17 km deep · 0 km away
  3. 2.03 km NNW of White Center, Washington · 14844 days ago · 21 km deep · 13 km away
  4. 1.83 km SW of Bainbridge Island, Washington · 14844 days ago · 19 km deep · 25 km away
  5. 1.53 km N of Lake Marcel-Stillwater, Washington · 14845 days ago · 21 km deep · 44 km away
  6. 2.112 km ESE of Tanner, Washington · 14846 days ago · 10 km deep · 57 km away
  7. 1.511 km NNE of North Sultan, Washington · 14851 days ago · -1 km deep · 74 km away
  8. 2.45 km ESE of Black Diamond, Washington · 14851 days ago · 12 km deep · 35 km away
  9. 1.5Washington-Oregon border region · 14854 days ago · -1 km deep · 93 km away
  10. 1.77 km ESE of Belfair, WA · 14855 days ago · 19 km deep · 30 km away
  11. 1.96 km ENE of Verlot, Washington · 14855 days ago · 14 km deep · 89 km away
  12. 1.932 km W of Brinnon, Washington · 14855 days ago · 41 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10203268. Read Fri, Oct 2, 2026, 5:21 PM UTC.