Washington earthquakes

M2.3 earthquake 9 km NNE of Hamilton, Washington

A magnitude 2.3 earthquake struck 9 km NNE of Hamilton, Washington on Fri, Sep 13, 2002, 7:33 AM PDT (14:33 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M4.1 9 km SW of Friday Harbor, 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
2.3 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2002-09-13 14:33:04 UTC
Depth
-0.9 km (-0.6 mi), shallow
Epicenter
48.606° N, 121.962° 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 0.1 km horizontally, 0.1 km in depth
Magnitude uncertainty
±0.04
Depth from
Operator assigned
Station coverage gap
103°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 30 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 1.510 km N of Hamilton, Washington · 8784 days ago · 3 km deep · 1 km away
  2. 2.39 km N of Hamilton, Washington · 8784 days ago · -1 km deep · 1 km away
  3. 1.71 km SSE of Lyman, Washington · 8780 days ago · -1 km deep · 12 km away
  4. 4.19 km SW of Friday Harbor, Washington · 8776 days ago · 23 km deep · 87 km away · felt by 294
  5. 2.50 km ENE of Lyman, Washington · 8776 days ago · -1 km deep · 11 km away
  6. 1.99 km WSW of Friday Harbor, Washington · 8776 days ago · 21 km deep · 86 km away
  7. 1.99 km WSW of Friday Harbor, Washington · 8776 days ago · 21 km deep · 87 km away
  8. 1.79 km WSW of Friday Harbor, Washington · 8776 days ago · 21 km deep · 87 km away
  9. 1.59 km SW of Friday Harbor, Washington · 8775 days ago · 20 km deep · 86 km away
  10. 2.49 km N of Hamilton, Washington · 8772 days ago · -1 km deep · 0 km away
  11. 2.610 km NNE of Hamilton, Washington · 8772 days ago · -1 km deep · 1 km away
  12. 2.47 km S of Sultan, Washington · 8772 days ago · 7 km deep · 91 km away
  13. 1.59 km N of Hamilton, Washington · 8772 days ago · 3 km deep · 1 km away
  14. 2.19 km NNE of Hamilton, Washington · 8772 days ago · 4 km deep · 0 km away
  15. 2.910 km SW of Friday Harbor, Washington · 8771 days ago · 23 km deep · 87 km away
  16. 1.95 km SE of Birch Bay, Washington · 8770 days ago · 18 km deep · 62 km away
  17. 1.51 km SSW of Monroe, Washington · 8769 days ago · 1 km deep · 85 km away
  18. 2.712 km NE of Mission, Canada · 8765 days ago · 1 km deep · 69 km away
  19. 1.713 km ENE of Mission, Canada · 8765 days ago · 10 km deep · 66 km away
  20. 2.15 km W of Edison, Washington · 8764 days ago · 15 km deep · 41 km away
  21. 1.75 km WSW of Edison, Washington · 8762 days ago · 0 km deep · 41 km away
  22. 1.510 km ESE of Friday Harbor, Washington · 8761 days ago · 0 km deep · 69 km away
  23. 2.25 km SW of Clinton, Washington · 8757 days ago · 31 km deep · 80 km away
  24. 1.70 km ESE of Mountlake Terrace, Washington · 8756 days ago · 22 km deep · 95 km away
  25. 1.52 km W of Edmonds, Washington · 8739 days ago · 19 km deep · 94 km away
  26. 1.98 km SSW of Anacortes, WA · 8739 days ago · 21 km deep · 54 km away
  27. 1.610 km NNW of Ault Field, WA · 8737 days ago · 22 km deep · 59 km away
  28. 2.29 km NNW of Ault Field, Washington · 8736 days ago · 22 km deep · 60 km away
  29. 2.410 km ESE of Friday Harbor, Washington · 8736 days ago · 0 km deep · 69 km away
  30. 3.12 km WSW of Camano, Washington · 8732 days ago · 27 km deep · 66 km away

Before

  1. 1.62 km SE of Alger, Washington · 8794 days ago · 14 km deep · 26 km away
  2. 1.85 km E of North Stanwood, Washington · 8796 days ago · 0 km deep · 45 km away
  3. 1.93 km ENE of Granite Falls, Washington · 8804 days ago · -1 km deep · 57 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10562948. Read Thu, Oct 1, 2026, 6:27 AM UTC.