Washington earthquakes

M1.7 earthquake 8 km N of Hamilton, Washington

A magnitude 1.7 earthquake struck 8 km N of Hamilton, Washington on Thu, Feb 21, 2008, 1:21 AM PST (09:21 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.9 2 km NE of Anacortes, Washington. This one was a foreshock.

Concrete 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
2008-02-21 09:21:06 UTC
Depth
6.6 km (4.1 mi), shallow
Epicenter
48.599° N, 121.971° 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 1.7 km horizontally, 2.5 km in depth
Magnitude uncertainty
±0.04
Depth from
Operator assigned
Station coverage gap
161°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 31 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.09 km N of Hamilton, Washington · 6800 days ago · 4 km deep · 2 km away
  2. 2.24 km N of Custer, Washington · 6796 days ago · 14 km deep · 63 km away
  3. 1.93 km SSE of Birch Bay, Washington · 6792 days ago · 5 km deep · 64 km away
  4. 1.75 km N of Woods Creek, Washington · 6792 days ago · 15 km deep · 75 km away
  5. 1.94 km ENE of Custer, Washington · 6792 days ago · 74 km deep · 58 km away
  6. 1.84 km SW of Woodway, Washington · 6785 days ago · 24 km deep · 99 km away
  7. 1.71 km NNW of Mountlake Terrace, Washington · 6779 days ago · 20 km deep · 93 km away
  8. 1.820 km NNW of Concrete, Washington · 6777 days ago · 21 km deep · 16 km away
  9. 2.92 km NE of Anacortes, Washington · 6769 days ago · 18 km deep · 46 km away
  10. 1.53 km WNW of Edmonds, Washington · 6769 days ago · 22 km deep · 92 km away
  11. 2.13 km E of Anacortes, Washington · 6766 days ago · 16 km deep · 44 km away
  12. 2.01 km NE of Anacortes, Washington · 6766 days ago · 19 km deep · 46 km away
  13. 1.71 km E of Anacortes, Washington · 6766 days ago · 19 km deep · 47 km away
  14. 1.93 km ENE of Anacortes, Washington · 6766 days ago · 17 km deep · 44 km away
  15. 2.12 km ENE of Anacortes, Washington · 6766 days ago · 19 km deep · 45 km away
  16. 2.23 km ENE of Anacortes, Washington · 6766 days ago · 20 km deep · 45 km away
  17. 2.12 km NE of Anacortes, Washington · 6766 days ago · 19 km deep · 46 km away
  18. 1.55 km ENE of Anacortes, Washington · 6766 days ago · 15 km deep · 42 km away
  19. 2.73 km ENE of Anacortes, Washington · 6760 days ago · 20 km deep · 45 km away
  20. 2.13 km ENE of Anacortes, Washington · 6760 days ago · 19 km deep · 45 km away
  21. 1.81 km ESE of Anacortes, Washington · 6760 days ago · 19 km deep · 46 km away
  22. 1.56 km WSW of Coupeville, Washington · 6760 days ago · 25 km deep · 74 km away
  23. 1.76 km N of Hamilton, Washington · 6758 days ago · -1 km deep · 3 km away
  24. 2.19 km NW of Port Townsend, Washington · 6757 days ago · 25 km deep · 81 km away
  25. 1.75 km SE of Oso, Washington · 6757 days ago · 10 km deep · 41 km away
  26. 1.83 km ENE of Anacortes, Washington · 6756 days ago · 19 km deep · 45 km away
  27. 1.55 km N of Sedro-Woolley, Washington · 6754 days ago · 17 km deep · 21 km away
  28. 2.011 km NNE of Marblemount, Washington · 6753 days ago · 1 km deep · 44 km away
  29. 1.65 km NNW of Swede Heaven, Washington · 6749 days ago · 3 km deep · 34 km away
  30. 2.711 km E of Verlot, Washington · 6748 days ago · -1 km deep · 62 km away
  31. 1.67 km NNE of Lake Marcel-Stillwater, Washington · 6741 days ago · 3 km deep · 94 km away

Before

  1. 1.64 km SE of Oak Bay, Canada · 6805 days ago · 41 km deep · 97 km away
  2. 2.29 km NE of Lake Cavanaugh, Washington · 6807 days ago · -1 km deep · 25 km away
  3. 1.648 km SE of Hope, Canada · 6811 days ago · 4 km deep · 92 km away
  4. 1.52 km E of Lake Ketchum, Washington · 6815 days ago · 6 km deep · 43 km away
  5. 1.54 km WSW of Darrington, Washington · 6824 days ago · 9 km deep · 47 km away
  6. 2.04 km NE of Lofall, Washington · 6826 days ago · 26 km deep · 97 km away
  7. 1.821 km NNW of Marblemount, Washington · 6830 days ago · 0 km deep · 36 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10739068. Read Sun, Oct 4, 2026, 3:52 PM UTC.