Washington earthquakes

M1.8 earthquake 4 km NE of Edison, Washington

A magnitude 1.8 earthquake struck 4 km NE of Edison, Washington on Mon, Aug 12, 2002, 3:58 AM PDT (10:58 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M4.1 9 km SW of Friday Harbor, Washington. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2002-08-12 10:58:23 UTC
Depth
11.9 km (7.4 mi), shallow
Epicenter
48.587° N, 122.401° 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 0.6 km horizontally, 2.3 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
69°
Stations used
19

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 12 in the 30 days before it.

After

  1. 1.93 km ENE of Granite Falls, Washington · 8805 days ago · -1 km deep · 65 km away
  2. 1.85 km E of North Stanwood, Washington · 8796 days ago · 0 km deep · 38 km away
  3. 1.62 km SE of Alger, Washington · 8794 days ago · 14 km deep · 6 km away
  4. 1.59 km NNE of Port Angeles East, Washington · 8793 days ago · 41 km deep · 81 km away
  5. 2.39 km NNE of Hamilton, Washington · 8784 days ago · -1 km deep · 32 km away
  6. 1.510 km N of Hamilton, Washington · 8784 days ago · 3 km deep · 32 km away
  7. 2.39 km N of Hamilton, Washington · 8784 days ago · -1 km deep · 32 km away
  8. 1.71 km SSE of Lyman, Washington · 8781 days ago · -1 km deep · 27 km away
  9. 1.516 km NNE of Ganges, Canada · 8777 days ago · 10 km deep · 86 km away
  10. 4.19 km SW of Friday Harbor, Washington · 8776 days ago · 23 km deep · 55 km away · felt by 294
  11. 2.50 km ENE of Lyman, Washington · 8776 days ago · -1 km deep · 26 km away
  12. 1.99 km WSW of Friday Harbor, Washington · 8776 days ago · 21 km deep · 54 km away
  13. 1.99 km WSW of Friday Harbor, Washington · 8776 days ago · 21 km deep · 55 km away
  14. 1.79 km WSW of Friday Harbor, Washington · 8776 days ago · 21 km deep · 55 km away
  15. 1.59 km SW of Friday Harbor, Washington · 8775 days ago · 20 km deep · 54 km away
  16. 2.49 km N of Hamilton, Washington · 8772 days ago · -1 km deep · 32 km away
  17. 2.610 km NNE of Hamilton, Washington · 8772 days ago · -1 km deep · 33 km away
  18. 2.47 km S of Sultan, Washington · 8772 days ago · 7 km deep · 98 km away
  19. 1.59 km N of Hamilton, Washington · 8772 days ago · 3 km deep · 31 km away
  20. 2.19 km NNE of Hamilton, Washington · 8772 days ago · 4 km deep · 33 km away
  21. 2.910 km SW of Friday Harbor, Washington · 8771 days ago · 23 km deep · 55 km away
  22. 1.95 km SE of Birch Bay, Washington · 8770 days ago · 18 km deep · 39 km away
  23. 1.51 km SSW of Monroe, Washington · 8769 days ago · 1 km deep · 89 km away
  24. 1.613 km SSE of Port Angeles East, Washington · 8767 days ago · 45 km deep · 93 km away
  25. 2.712 km NE of Mission, Canada · 8765 days ago · 1 km deep · 71 km away
  26. 1.713 km ENE of Mission, Canada · 8765 days ago · 10 km deep · 69 km away
  27. 2.15 km W of Edison, Washington · 8764 days ago · 15 km deep · 10 km away
  28. 1.75 km WSW of Edison, Washington · 8762 days ago · 0 km deep · 9 km away
  29. 1.510 km ESE of Friday Harbor, Washington · 8761 days ago · 0 km deep · 37 km away
  30. 2.25 km SW of Clinton, Washington · 8757 days ago · 31 km deep · 70 km away
  31. 1.70 km ESE of Mountlake Terrace, Washington · 8756 days ago · 22 km deep · 89 km away

Before

  1. 1.85 km SSW of Sultan, Washington · 8817 days ago · 17 km deep · 96 km away
  2. 2.04 km SW of Inglewood-Finn Hill, Washington · 8821 days ago · 21 km deep · 100 km away
  3. 2.63 km E of Port Hadlock-Irondale, Washington · 8829 days ago · 58 km deep · 66 km away
  4. 1.71 km S of Lochsloy, Washington · 8831 days ago · 0 km deep · 66 km away
  5. 1.78 km ENE of Marrowstone, Washington · 8833 days ago · 23 km deep · 57 km away
  6. 1.5Washington · 8833 days ago · 3 km deep · 47 km away
  7. 1.79 km N of Rockport, Washington · 8835 days ago · 3 km deep · 60 km away
  8. 1.95 km NE of Oso, Washington · 8837 days ago · -1 km deep · 50 km away
  9. 2.15 km NE of Oso, Washington · 8837 days ago · -1 km deep · 49 km away
  10. 1.54 km N of Oso, Washington · 8837 days ago · 3 km deep · 46 km away
  11. 1.52 km N of Oso, Washington · 8844 days ago · 0 km deep · 48 km away
  12. 1.74 km NNE of Oso, Washington · 8845 days ago · 3 km deep · 47 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10564053. Read Thu, Oct 1, 2026, 9:33 AM UTC.