Washington earthquakes

M1.9 earthquake 12 km NNW of Ryderwood, Washington

A magnitude 1.9 earthquake struck 12 km NNW of Ryderwood, Washington on Fri, Jul 4, 2003, 2:30 AM PDT (09:30 UTC), 49 km (31 mi) below the surface.

A larger quake followed: M3.0 4 km NW of North Portland, Oregon. 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
1.9 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2003-07-04 09:30:14 UTC
Depth
49.4 km (30.7 mi), shallow
Epicenter
46.473° N, 123.127° 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, 0.6 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
69°
Stations used
30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 28 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 1.74 km W of Dollar Corner, Washington · 8489 days ago · 16 km deep · 86 km away
  2. 1.911 km S of Morton, Washington · 8486 days ago · 11 km deep · 67 km away
  3. 1.62 km NE of Orchards, Washington · 8486 days ago · 15 km deep · 99 km away
  4. 1.83 km NW of North Portland, Oregon · 8470 days ago · 16 km deep · 98 km away
  5. 3.04 km NW of North Portland, Oregon · 8469 days ago · 17 km deep · 97 km away · felt by 149
  6. 1.54 km NW of North Portland, Oregon · 8469 days ago · 17 km deep · 98 km away
  7. 1.64 km WNW of North Portland, Oregon · 8469 days ago · 17 km deep · 98 km away
  8. 2.24 km NW of North Portland, Oregon · 8469 days ago · 17 km deep · 98 km away
  9. 2.24 km NW of North Portland, Oregon · 8469 days ago · 17 km deep · 98 km away
  10. 2.13 km NW of North Portland, Oregon · 8469 days ago · 16 km deep · 99 km away
  11. 1.75 km NW of North Portland, Oregon · 8469 days ago · 16 km deep · 97 km away
  12. 1.73 km NW of North Portland, Oregon · 8469 days ago · 16 km deep · 99 km away
  13. 1.62 km WNW of North Portland, Oregon · 8469 days ago · 15 km deep · 100 km away
  14. 2.14 km NW of North Portland, Oregon · 8469 days ago · 16 km deep · 98 km away
  15. 1.73 km NW of North Portland, Oregon · 8469 days ago · 16 km deep · 98 km away
  16. 2.83 km NW of North Portland, Oregon · 8469 days ago · 17 km deep · 98 km away
  17. 2.43 km NW of North Portland, Oregon · 8469 days ago · 16 km deep · 98 km away
  18. 1.63 km NW of North Portland, Oregon · 8469 days ago · 16 km deep · 99 km away
  19. 2.43 km NW of North Portland, Oregon · 8468 days ago · 18 km deep · 98 km away
  20. 1.84 km NW of North Portland, Oregon · 8466 days ago · 17 km deep · 97 km away
  21. 2.110 km E of Kalama, Washington · 8466 days ago · 19 km deep · 62 km away
  22. 1.94 km NW of North Portland, Oregon · 8464 days ago · 17 km deep · 97 km away
  23. 2.2Washington-Oregon border region · 8461 days ago · 17 km deep · 97 km away
  24. 1.710 km E of Kalama, Washington · 8459 days ago · 13 km deep · 61 km away
  25. 2.28 km S of Morton, Washington · 8452 days ago · 17 km deep · 66 km away
  26. 1.811 km SSE of Mineral, Washington · 8445 days ago · 15 km deep · 78 km away
  27. 1.61 km NE of Skokomish, Washington · 8434 days ago · 43 km deep · 97 km away
  28. 1.615 km S of Morton, Washington · 8433 days ago · 7 km deep · 67 km away

Before

  1. 1.636 km SSE of Morton, Washington · 8492 days ago · 9 km deep · 86 km away
  2. 1.513 km SSE of Pe Ell, Washington · 8492 days ago · 2 km deep · 10 km away
  3. 1.536 km SSE of Morton, Washington · 8495 days ago · 9 km deep · 85 km away
  4. 1.55 km WNW of North Portland, Oregon · 8500 days ago · 14 km deep · 97 km away
  5. 1.63 km W of Fox Island, Washington · 8500 days ago · 27 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10584903. Read Fri, Oct 2, 2026, 3:08 AM UTC.