Washington earthquakes

M1.8 earthquake 4 km SE of Issaquah, Washington

A magnitude 1.8 earthquake struck 4 km SE of Issaquah, Washington on Mon, Jul 31, 2006, 5:59 PM PDT (00:59 UTC), 17 km (10 mi) below the surface.

A larger quake followed: M2.9 15 km NE of Ashford, Washington. This one was a foreshock.

Issaquah 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
1.8 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2006-08-01 00:59:59 UTC
Depth
16.7 km (10.4 mi), shallow
Epicenter
47.503° N, 121.990° 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 1.0 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
90°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 2.418 km SSE of Carbonado, Washington · 7368 days ago · 7 km deep · 64 km away
  2. 2.517 km SSE of Carbonado, Washington · 7367 days ago · 11 km deep · 63 km away
  3. 1.717 km SSE of Carbonado, Washington · 7367 days ago · 11 km deep · 63 km away
  4. 1.617 km SSE of Carbonado, Washington · 7366 days ago · 10 km deep · 63 km away
  5. 2.915 km NE of Ashford, Washington · 7366 days ago · 9 km deep · 71 km away
  6. 1.915 km NE of Ashford, Washington · 7366 days ago · 9 km deep · 71 km away
  7. 1.717 km SSE of Carbonado, Washington · 7365 days ago · 11 km deep · 63 km away
  8. 2.01 km ENE of Granite Falls, Washington · 7364 days ago · -1 km deep · 65 km away
  9. 1.67 km ENE of Snoqualmie, Washington · 7363 days ago · 12 km deep · 20 km away
  10. 1.60 km N of Prairie Ridge, Washington · 7362 days ago · 14 km deep · 41 km away
  11. 2.117 km SSE of Carbonado, Washington · 7359 days ago · 10 km deep · 63 km away
  12. 1.65 km SSW of Black Diamond, Washington · 7358 days ago · 13 km deep · 27 km away
  13. 2.12 km W of Belfair, Washington · 7358 days ago · 5 km deep · 66 km away
  14. 1.80 km ENE of Granite Falls, Washington · 7353 days ago · -1 km deep · 65 km away
  15. 1.75 km NNE of Lake Marcel-Stillwater, Washington · 7345 days ago · 6 km deep · 28 km away
  16. 1.94 km NNW of Seattle, Washington · 7345 days ago · 28 km deep · 31 km away
  17. 1.72 km SW of Three Lakes, Washington · 7344 days ago · 30 km deep · 48 km away
  18. 1.66 km E of Wilkeson, Washington · 7344 days ago · 15 km deep · 44 km away
  19. 2.44 km E of Issaquah, Washington · 7342 days ago · 18 km deep · 4 km away
  20. 1.711 km NE of Ashford, Washington · 7341 days ago · 7 km deep · 74 km away
  21. 1.70 km NE of Medina, Washington · 7339 days ago · 20 km deep · 22 km away
  22. 1.722 km ENE of Ashford, Washington · 7338 days ago · -2 km deep · 74 km away
  23. 1.726 km ENE of Ashford, Washington · 7337 days ago · -2 km deep · 75 km away
  24. 1.612 km NNE of Ashford, Washington · 7333 days ago · 6 km deep · 71 km away
  25. 2.54 km E of Cathcart, Washington · 7333 days ago · 26 km deep · 39 km away
  26. 2.14 km WSW of Wilderness Rim, Washington · 7330 days ago · 18 km deep · 15 km away
  27. 1.65 km WNW of Lake Cavanaugh, Washington · 7328 days ago · -1 km deep · 94 km away
  28. 1.518 km SSE of Carbonado, Washington · 7328 days ago · 4 km deep · 64 km away
  29. 1.817 km SSE of Carbonado, Washington · 7323 days ago · 11 km deep · 63 km away
  30. 1.57 km N of Greenwater, Washington · 7319 days ago · 11 km deep · 42 km away
  31. 2.18 km NNE of Lake Marcel-Stillwater, Washington · 7317 days ago · 3 km deep · 30 km away
  32. 1.92 km ESE of Fall City, Washington · 7317 days ago · 23 km deep · 11 km away
  33. 1.61 km SW of Fall City, Washington · 7314 days ago · 72 km deep · 8 km away
  34. 2.23 km SE of Dash Point, Washington · 7314 days ago · 29 km deep · 37 km away
  35. 1.63 km ESE of Oso, Washington · 7313 days ago · 13 km deep · 84 km away
  36. 2.30 km W of Auburn, Washington · 7309 days ago · 20 km deep · 29 km away

Before

  1. 2.617 km SSE of Carbonado, Washington · 7368 days ago · 8 km deep · 64 km away
  2. 2.817 km SSE of Carbonado, Washington · 7369 days ago · 9 km deep · 63 km away
  3. 1.81 km NE of Granite Falls, Washington · 7371 days ago · 0 km deep · 65 km away
  4. 1.54 km SE of Carbonado, Washington · 7372 days ago · 18 km deep · 50 km away
  5. 1.62 km SE of Oso, Washington · 7379 days ago · 11 km deep · 83 km away
  6. 1.82 km NE of Kirkland, Washington · 7381 days ago · 18 km deep · 26 km away
  7. 2.49 km ENE of Duvall, Washington · 7381 days ago · 2 km deep · 31 km away
  8. 1.83 km NNW of Duvall, Washington · 7382 days ago · 11 km deep · 30 km away
  9. 1.61 km E of Clyde Hill, Washington · 7388 days ago · 29 km deep · 21 km away
  10. 1.8Puget Sound region, Washington · 7388 days ago · 28 km deep · 21 km away
  11. 2.520 km NNW of Hoodsport, Washington · 7389 days ago · 47 km deep · 97 km away
  12. 1.514 km NNE of Ashford, Washington · 7389 days ago · 7 km deep · 69 km away
  13. 2.42 km WSW of Wilderness Rim, Washington · 7393 days ago · 19 km deep · 16 km away
  14. 1.51 km ESE of Oak Harbor, Washington · 7394 days ago · 22 km deep · 99 km away
  15. 1.71 km ENE of Granite Falls, Washington · 7394 days ago · -1 km deep · 65 km away
  16. 2.13 km ESE of Duvall, Washington · 7396 days ago · 16 km deep · 26 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10695038. Read Sat, Oct 3, 2026, 3:56 AM UTC.