Washington earthquakes

M1.8 earthquake 6 km SSE of Quilcene, Washington

A magnitude 1.8 earthquake struck 6 km SSE of Quilcene, Washington on Wed, Jul 30, 2003, 9:36 AM PDT (16:36 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M2.5 4 km SW of Clear Lake, 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
2003-07-30 16:36:31 UTC
Depth
26.5 km (16.4 mi), shallow
Epicenter
47.770° N, 122.836° 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 1.8 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
96°
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: 32 in the 60 days after this one and 17 in the 30 days before it.

After

  1. 1.66 km W of Hoodsport, Washington · 8463 days ago · -1 km deep · 51 km away
  2. 2.54 km SW of Clear Lake, Washington · 8462 days ago · 8 km deep · 85 km away
  3. 2.1Washington · 8461 days ago · 26 km deep · 62 km away
  4. 1.51 km WNW of Lake Marcel-Stillwater, Washington · 8459 days ago · 25 km deep · 68 km away
  5. 1.63 km NNW of Big Lake, Washington · 8459 days ago · 7 km deep · 85 km away
  6. 1.51 km SSW of Oso, Washington · 8455 days ago · 11 km deep · 86 km away
  7. 1.92 km N of Lake Marcel-Stillwater, Washington · 8453 days ago · 28 km deep · 69 km away
  8. 1.91 km SSE of Port Hadlock-Irondale, Washington · 8451 days ago · 16 km deep · 28 km away
  9. 2.14 km ENE of Belfair, Washington · 8451 days ago · 11 km deep · 33 km away
  10. 1.51 km NNW of Lake Marcel-Stillwater, Washington · 8450 days ago · 27 km deep · 68 km away
  11. 1.95 km WSW of Swede Heaven, Washington · 8449 days ago · 3 km deep · 95 km away
  12. 1.910 km NNE of Snoqualmie, Washington · 8448 days ago · 12 km deep · 82 km away
  13. 2.18 km NE of Lake Marcel-Stillwater, Washington · 8447 days ago · 6 km deep · 74 km away
  14. 1.54 km SSE of Quilcene, Washington · 8447 days ago · 21 km deep · 2 km away
  15. 1.74 km SW of Port Hadlock-Irondale, Washington · 8447 days ago · 18 km deep · 26 km away
  16. 1.72 km SW of Port Hadlock-Irondale, Washington · 8446 days ago · 16 km deep · 27 km away
  17. 1.6Washington · 8444 days ago · 7 km deep · 80 km away
  18. 1.911 km SSW of Darrington, Washington · 8443 days ago · 10 km deep · 99 km away
  19. 2.117 km N of Hoodsport, Washington · 8440 days ago · 44 km deep · 31 km away
  20. 1.519 km NNE of Jamestown, Washington · 8439 days ago · 48 km deep · 60 km away
  21. 1.75 km WSW of Seabeck, Washington · 8438 days ago · 17 km deep · 17 km away
  22. 1.81 km E of Maltby, Washington · 8436 days ago · 23 km deep · 56 km away
  23. 1.61 km NE of Skokomish, Washington · 8433 days ago · 43 km deep · 52 km away
  24. 2.38 km NNE of North Sultan, Washington · 8431 days ago · 11 km deep · 84 km away
  25. 1.84 km N of Lake Marcel-Stillwater, Washington · 8419 days ago · 6 km deep · 70 km away
  26. 1.916 km WSW of Skokomish, Washington · 8415 days ago · 19 km deep · 68 km away
  27. 1.55 km NE of Anacortes, Washington · 8414 days ago · 12 km deep · 89 km away
  28. 2.06 km NE of Fall City, Washington · 8411 days ago · 17 km deep · 77 km away
  29. 2.214 km NE of Jamestown, Washington · 8410 days ago · 24 km deep · 50 km away
  30. 1.55 km WSW of Hansville, Washington · 8410 days ago · 21 km deep · 21 km away
  31. 1.78 km SW of Sultan, Washington · 8407 days ago · 9 km deep · 71 km away
  32. 2.13 km NE of Anacortes, Washington · 8405 days ago · 16 km deep · 88 km away

Before

  1. 2.01 km E of Enetai, Washington · 8465 days ago · 24 km deep · 28 km away
  2. 1.65 km ENE of Carnation, Washington · 8467 days ago · 7 km deep · 75 km away
  3. 1.93 km SE of Klahanie, Washington · 8471 days ago · 17 km deep · 69 km away
  4. 2.23 km ESE of Freeland, Washington · 8476 days ago · 26 km deep · 36 km away
  5. 1.64 km NNE of Lake Roesiger, Washington · 8478 days ago · 13 km deep · 76 km away
  6. 1.65 km NNE of Brinnon, Washington · 8479 days ago · 22 km deep · 6 km away
  7. 1.51 km N of Carnation, Washington · 8479 days ago · 21 km deep · 70 km away
  8. 1.57 km NNE of Brinnon, Washington · 8480 days ago · 19 km deep · 4 km away
  9. 1.97 km NNE of Brinnon, Washington · 8480 days ago · 19 km deep · 4 km away
  10. 1.63 km ENE of Granite Falls, Washington · 8484 days ago · -1 km deep · 77 km away
  11. 1.76 km S of Quilcene, Washington · 8486 days ago · 22 km deep · 2 km away
  12. 2.01 km ENE of Bellevue, Washington · 8488 days ago · 30 km deep · 52 km away
  13. 3.04 km SE of Belfair, Washington · 8488 days ago · 8 km deep · 39 km away · felt by 128
  14. 1.68 km SSW of Verlot, Washington · 8489 days ago · 16 km deep · 80 km away
  15. 1.81 km NE of Bellevue, Washington · 8491 days ago · 30 km deep · 51 km away
  16. 1.53 km ESE of Oso, Washington · 8492 days ago · 12 km deep · 89 km away
  17. 1.96 km NE of Lake Roesiger, Washington · 8493 days ago · 13 km deep · 78 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10603563. Read Thu, Oct 1, 2026, 2:52 PM UTC.