Washington earthquakes

M1.6 earthquake 5 km WSW of Snoqualmie, Washington

A magnitude 1.6 earthquake struck 5 km WSW of Snoqualmie, Washington on Fri, Sep 23, 2005, 3:59 PM PDT (22:59 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.6 17 km NW of Leavenworth, Washington. This one was a foreshock.

Snoqualmie 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
1.6 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2005-09-23 22:59:11 UTC
Depth
7.9 km (4.9 mi), shallow
Epicenter
47.507° N, 121.895° 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, 0.2 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
172°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 2.617 km NW of Leavenworth, Washington · 7675 days ago · 4 km deep · 81 km away
  2. 2.3Washington · 7661 days ago · 17 km deep · 15 km away
  3. 1.89 km W of Easton, Washington · 7655 days ago · 10 km deep · 54 km away
  4. 2.47 km SSW of Seabeck, Washington · 7641 days ago · 21 km deep · 73 km away
  5. 1.56 km ESE of Enumclaw, Washington · 7637 days ago · 23 km deep · 37 km away
  6. 1.54 km ENE of Lake Roesiger, Washington · 7635 days ago · 13 km deep · 55 km away
  7. 2.12 km WNW of Tacoma, Washington · 7634 days ago · 12 km deep · 51 km away
  8. 1.65 km E of Lake McMurray, Washington · 7625 days ago · 3 km deep · 92 km away
  9. 1.86 km SW of Wilderness Rim, Washington · 7621 days ago · 20 km deep · 13 km away
  10. 1.94 km W of Shoreline, Washington · 7619 days ago · 26 km deep · 47 km away

Before

  1. 1.512 km NE of Snoqualmie, Washington · 7681 days ago · 6 km deep · 18 km away
  2. 1.83 km E of Dash Point, Washington · 7685 days ago · 22 km deep · 42 km away
  3. 2.94 km WSW of Quilcene, Washington · 7690 days ago · 49 km deep · 84 km away
  4. 1.72 km SW of Erlands Point-Kitsap Lake, Washington · 7691 days ago · 19 km deep · 63 km away
  5. 1.73 km E of Dash Point, Washington · 7694 days ago · 28 km deep · 42 km away
  6. 1.51 km NNW of Maple Valley, Washington · 7695 days ago · 7 km deep · 17 km away
  7. 1.62 km WSW of Ronald, Washington · 7695 days ago · 9 km deep · 70 km away
  8. 1.82 km ENE of Granite Falls, Washington · 7696 days ago · -1 km deep · 65 km away
  9. 1.84 km E of Dash Point, Washington · 7700 days ago · 28 km deep · 41 km away
  10. 1.52 km W of Maple Valley, Washington · 7701 days ago · 7 km deep · 19 km away
  11. 1.81 km W of Maple Valley, Washington · 7701 days ago · 7 km deep · 18 km away
  12. 1.50 km SW of Maple Valley, Washington · 7701 days ago · 4 km deep · 18 km away
  13. 1.84 km SW of Mirrormont, Washington · 7702 days ago · 20 km deep · 13 km away
  14. 1.73 km SSE of Kingsgate, Washington · 7703 days ago · 2 km deep · 29 km away
  15. 2.02 km ENE of Granite Falls, Washington · 7704 days ago · -1 km deep · 65 km away
  16. 2.17 km ENE of Quilcene, Washington · 7705 days ago · 22 km deep · 77 km away
  17. 2.56 km WSW of Darrington, Washington · 7707 days ago · 8 km deep · 82 km away
  18. 2.16 km NE of Duvall, Washington · 7708 days ago · 20 km deep · 30 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10682603. Read Fri, Oct 2, 2026, 8:53 PM UTC.