Washington earthquakes

M1.5 earthquake 2 km NE of Snoqualmie, Washington

A magnitude 1.5 earthquake struck 2 km NE of Snoqualmie, Washington on Tue, Apr 18, 2006, 4:24 AM PDT (11:24 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M2.5 6 km NNE of Tanner, 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
1.5 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2006-04-18 11:24:04 UTC
Depth
17.3 km (10.8 mi), shallow
Epicenter
47.544° N, 121.797° 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 0.3 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.02
Depth from
From location
Station coverage gap
84°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.92 km ENE of Granite Falls, Washington · 7466 days ago · -1 km deep · 62 km away
  2. 1.95 km W of Gorst, Washington · 7465 days ago · 18 km deep · 74 km away
  3. 2.21 km NW of Snohomish, Washington · 7461 days ago · 25 km deep · 49 km away
  4. 1.76 km SSW of Lake Morton-Berrydale, Washington · 7461 days ago · 23 km deep · 39 km away
  5. 2.014 km NNE of Ashford, Washington · 7453 days ago · 6 km deep · 75 km away
  6. 2.56 km NNE of Tanner, Washington · 7448 days ago · 15 km deep · 7 km away
  7. 1.511 km W of Port Ludlow, Washington · 7448 days ago · 33 km deep · 88 km away
  8. 1.5Puget Sound region, Washington · 7448 days ago · 29 km deep · 53 km away
  9. 1.87 km NNW of Dash Point, Washington · 7443 days ago · 21 km deep · 54 km away
  10. 2.216 km SSE of Carbonado, Washington · 7441 days ago · -2 km deep · 68 km away
  11. 1.71 km NW of Lake Marcel-Stillwater, Washington · 7439 days ago · 27 km deep · 20 km away
  12. 2.21 km E of Snoqualmie, Washington · 7437 days ago · 13 km deep · 2 km away
  13. 1.718 km SE of Carbonado, Washington · 7436 days ago · 3 km deep · 65 km away
  14. 1.70 km NE of Mirrormont, Washington · 7436 days ago · 24 km deep · 17 km away
  15. 1.53 km SE of Ravensdale, Washington · 7428 days ago · 23 km deep · 26 km away
  16. 1.84 km W of Lake Cavanaugh, Washington · 7428 days ago · 13 km deep · 89 km away
  17. 2.54 km S of Langley, Washington · 7425 days ago · 57 km deep · 68 km away
  18. 2.46 km WSW of Darrington, Washington · 7419 days ago · 8 km deep · 76 km away
  19. 1.58 km N of Camano, Washington · 7418 days ago · 27 km deep · 96 km away

Before

  1. 1.78 km E of Ashford, Washington · 7475 days ago · 6 km deep · 87 km away
  2. 2.412 km SE of Carbonado, Washington · 7480 days ago · 16 km deep · 63 km away
  3. 2.0Washington · 7482 days ago · 8 km deep · 55 km away
  4. 1.53 km NE of Union Hill-Novelty Hill, Washington · 7483 days ago · 3 km deep · 23 km away
  5. 1.62 km NW of Edmonds, Washington · 7485 days ago · 21 km deep · 55 km away
  6. 1.61 km ENE of Keyport, Washington · 7487 days ago · 21 km deep · 63 km away
  7. 2.00 km NW of Keyport, Washington · 7488 days ago · 22 km deep · 65 km away
  8. 1.74 km SE of Oso, Washington · 7499 days ago · 12 km deep · 77 km away
  9. 2.23 km SSW of Port Ludlow, Washington · 7499 days ago · 25 km deep · 78 km away
  10. 2.38 km NE of Lake Marcel-Stillwater, Washington · 7502 days ago · 2 km deep · 23 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10692778. Read Fri, Oct 2, 2026, 11:41 PM UTC.