Washington earthquakes

M1.5 earthquake 5 km N of Sedro-Woolley, Washington

A magnitude 1.5 earthquake struck 5 km N of Sedro-Woolley, Washington on Mon, Apr 7, 2008, 7:39 PM PDT (02:39 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M3.4 12 km E of Verlot, Washington. This one was a foreshock.

Sedro-Woolley 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
2008-04-08 02:39:23 UTC
Depth
17.1 km (10.6 mi), shallow
Epicenter
48.557° N, 122.245° 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, 1.2 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
128°
Stations used
8

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 20 in the 30 days before it.

After

  1. 2.011 km NNE of Marblemount, Washington · 6753 days ago · 1 km deep · 64 km away
  2. 1.65 km NNW of Swede Heaven, Washington · 6749 days ago · 3 km deep · 45 km away
  3. 2.711 km E of Verlot, Washington · 6749 days ago · -1 km deep · 69 km away
  4. 1.67 km NNE of Lake Marcel-Stillwater, Washington · 6741 days ago · 3 km deep · 94 km away
  5. 2.3Washington · 6740 days ago · 0 km deep · 70 km away
  6. 3.412 km E of Verlot, Washington · 6740 days ago · 0 km deep · 70 km away
  7. 1.73 km SSE of Port Ludlow, Washington · 6740 days ago · 20 km deep · 79 km away
  8. 1.86 km SSE of Sultan, Washington · 6736 days ago · -1 km deep · 90 km away
  9. 1.97 km WNW of Lake Cavanaugh, Washington · 6735 days ago · 24 km deep · 25 km away
  10. 2.06 km NNE of Acme, Washington · 6732 days ago · 15 km deep · 24 km away
  11. 1.94 km WSW of Shoreline, Washington · 6719 days ago · 26 km deep · 92 km away
  12. 1.69 km SSE of Friday Harbor, Washington · 6716 days ago · 52 km deep · 54 km away
  13. 1.712 km ENE of Jamestown, Washington · 6714 days ago · 52 km deep · 67 km away
  14. 1.66 km N of Kingston, Washington · 6713 days ago · 23 km deep · 80 km away
  15. 1.73 km SSE of Woods Creek, Washington · 6705 days ago · 8 km deep · 83 km away
  16. 1.54 km NNW of Langford, Canada · 6704 days ago · 0 km deep · 95 km away
  17. 2.33 km NE of Conway, Washington · 6700 days ago · 14 km deep · 22 km away

Before

  1. 1.83 km ENE of Anacortes, Washington · 6756 days ago · 19 km deep · 24 km away
  2. 1.75 km SE of Oso, Washington · 6757 days ago · 10 km deep · 45 km away
  3. 2.19 km NW of Port Townsend, Washington · 6758 days ago · 25 km deep · 63 km away
  4. 1.76 km N of Hamilton, Washington · 6758 days ago · -1 km deep · 19 km away
  5. 1.56 km WSW of Coupeville, Washington · 6760 days ago · 25 km deep · 56 km away
  6. 1.81 km ESE of Anacortes, Washington · 6760 days ago · 19 km deep · 26 km away
  7. 2.13 km ENE of Anacortes, Washington · 6760 days ago · 19 km deep · 24 km away
  8. 2.73 km ENE of Anacortes, Washington · 6760 days ago · 20 km deep · 25 km away
  9. 1.55 km ENE of Anacortes, Washington · 6766 days ago · 15 km deep · 22 km away
  10. 2.12 km NE of Anacortes, Washington · 6766 days ago · 19 km deep · 25 km away
  11. 2.23 km ENE of Anacortes, Washington · 6766 days ago · 20 km deep · 24 km away
  12. 2.12 km ENE of Anacortes, Washington · 6766 days ago · 19 km deep · 25 km away
  13. 1.93 km ENE of Anacortes, Washington · 6766 days ago · 17 km deep · 24 km away
  14. 1.71 km E of Anacortes, Washington · 6767 days ago · 19 km deep · 26 km away
  15. 2.01 km NE of Anacortes, Washington · 6767 days ago · 19 km deep · 26 km away
  16. 2.13 km E of Anacortes, Washington · 6767 days ago · 16 km deep · 24 km away
  17. 1.53 km WNW of Edmonds, Washington · 6769 days ago · 22 km deep · 82 km away
  18. 2.92 km NE of Anacortes, Washington · 6769 days ago · 18 km deep · 25 km away
  19. 1.820 km NNW of Concrete, Washington · 6778 days ago · 21 km deep · 35 km away
  20. 1.71 km NNW of Mountlake Terrace, Washington · 6779 days ago · 20 km deep · 84 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10742153. Read Sun, Oct 4, 2026, 8:56 PM UTC.