Washington earthquakes

M1.8 earthquake 1 km N of Maple Valley, Washington

A magnitude 1.8 earthquake struck 1 km N of Maple Valley, Washington on Sat, Apr 9, 2005, 2:27 PM PDT (21:27 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M2.6 7 km ENE of Lake Roesiger, Washington. This one was a foreshock.

Maple Valley 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
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2005-04-09 21:27:21 UTC
Depth
18.9 km (11.7 mi), shallow
Epicenter
47.405° N, 122.045° 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 1.1 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
53°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.614 km SSE of Ashford, Washington · 7845 days ago · 6 km deep · 84 km away
  2. 1.73 km NW of Kingston, Washington · 7843 days ago · 26 km deep · 59 km away
  3. 1.94 km SSW of Lake McMurray, Washington · 7838 days ago · 8 km deep · 98 km away
  4. 1.53 km SSW of Gorst, Washington · 7836 days ago · 20 km deep · 52 km away
  5. 2.37 km ENE of Carnation, Washington · 7836 days ago · 17 km deep · 34 km away
  6. 2.17 km ENE of Carnation, Washington · 7834 days ago · 17 km deep · 34 km away
  7. 2.10 km ENE of Maple Valley, Washington · 7826 days ago · 7 km deep · 1 km away
  8. 1.5Washington · 7823 days ago · 11 km deep · 86 km away
  9. 1.73 km N of Bangor Trident Base, Washington · 7816 days ago · 19 km deep · 64 km away
  10. 2.67 km ENE of Lake Roesiger, Washington · 7812 days ago · 17 km deep · 70 km away
  11. 2.66 km WSW of Camano, Washington · 7807 days ago · 27 km deep · 93 km away
  12. 1.85 km W of Home, Washington · 7803 days ago · 26 km deep · 62 km away
  13. 1.96 km NNE of Olympia, Washington · 7798 days ago · 54 km deep · 72 km away
  14. 1.76 km ENE of Marrowstone, Washington · 7798 days ago · 28 km deep · 86 km away
  15. 1.910 km SSE of Mineral, Washington · 7797 days ago · 15 km deep · 87 km away
  16. 1.85 km WSW of Home, Washington · 7797 days ago · 24 km deep · 61 km away
  17. 1.94 km SE of Key Center, Washington · 7792 days ago · 24 km deep · 50 km away
  18. 1.910 km SSE of Mineral, Washington · 7792 days ago · 15 km deep · 87 km away
  19. 1.86 km W of Home, Washington · 7791 days ago · 26 km deep · 63 km away
  20. 1.86 km NNE of Lake Marcel-Stillwater, Washington · 7790 days ago · 3 km deep · 40 km away
  21. 1.72 km NNE of Kirkland, Washington · 7790 days ago · 17 km deep · 35 km away

Before

  1. 1.65 km ESE of Oso, Washington · 7846 days ago · 9 km deep · 96 km away
  2. 1.58 km SW of Wilderness Rim, Washington · 7847 days ago · 21 km deep · 16 km away
  3. 1.64 km SE of Oso, Washington · 7847 days ago · 13 km deep · 94 km away
  4. 2.02 km WSW of North Bend, Washington · 7850 days ago · 21 km deep · 19 km away
  5. 2.13 km W of Freeland, Washington · 7851 days ago · 62 km deep · 77 km away
  6. 2.413 km NE of Cliffdell, Washington · 7856 days ago · 3 km deep · 94 km away
  7. 1.81 km NE of Southworth, Washington · 7859 days ago · 23 km deep · 36 km away
  8. 1.51 km NW of Lake Stickney, Washington · 7860 days ago · 21 km deep · 56 km away
  9. 1.67 km WSW of Seattle, Washington · 7868 days ago · 22 km deep · 34 km away
  10. 1.8Washington · 7872 days ago · 12 km deep · 98 km away
  11. 3.35 km WSW of Home, Washington · 7873 days ago · 24 km deep · 61 km away · felt by 420

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10660643. Read Fri, Oct 2, 2026, 1:04 PM UTC.