Washington earthquakes

M1.8 earthquake 1 km NE of Granite Falls, Washington

A magnitude 1.8 earthquake struck 1 km NE of Granite Falls, Washington on Fri, Jul 28, 2006, 11:46 AM PDT (18:46 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.5 4 km E of Cathcart, Washington. This one was a foreshock.

Granite Falls 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
2006-07-28 18:46:15 UTC
Depth
-0.4 km (-0.2 mi), shallow
Epicenter
48.090° N, 121.957° 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
92°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 1.54 km SSW of Mount Vernon, Washington · 7369 days ago · 3 km deep · 44 km away
  2. 1.84 km SE of Issaquah, Washington · 7368 days ago · 17 km deep · 65 km away
  3. 2.01 km ENE of Granite Falls, Washington · 7364 days ago · -1 km deep · 1 km away
  4. 1.67 km ENE of Snoqualmie, Washington · 7364 days ago · 12 km deep · 60 km away
  5. 1.65 km SSW of Black Diamond, Washington · 7358 days ago · 13 km deep · 93 km away
  6. 2.12 km W of Belfair, Washington · 7358 days ago · 5 km deep · 98 km away
  7. 1.63 km ENE of Oak Harbor, Washington · 7354 days ago · 21 km deep · 54 km away
  8. 1.80 km ENE of Granite Falls, Washington · 7353 days ago · -1 km deep · 0 km away
  9. 1.75 km NNE of Lake Marcel-Stillwater, Washington · 7345 days ago · 6 km deep · 39 km away
  10. 1.94 km NNW of Seattle, Washington · 7345 days ago · 28 km deep · 57 km away
  11. 1.72 km SW of Three Lakes, Washington · 7344 days ago · 30 km deep · 18 km away
  12. 2.44 km E of Issaquah, Washington · 7342 days ago · 18 km deep · 62 km away
  13. 1.70 km NE of Medina, Washington · 7339 days ago · 20 km deep · 55 km away
  14. 2.54 km E of Cathcart, Washington · 7333 days ago · 26 km deep · 27 km away
  15. 1.55 km ESE of Clear Lake, Washington · 7331 days ago · -1 km deep · 42 km away
  16. 2.14 km WSW of Wilderness Rim, Washington · 7330 days ago · 18 km deep · 75 km away
  17. 1.65 km WNW of Lake Cavanaugh, Washington · 7329 days ago · -1 km deep · 30 km away
  18. 1.544 km WSW of Twisp, Washington · 7322 days ago · 4 km deep · 95 km away
  19. 1.57 km N of Greenwater, Washington · 7320 days ago · 11 km deep · 100 km away
  20. 2.18 km NNE of Lake Marcel-Stillwater, Washington · 7318 days ago · 3 km deep · 37 km away
  21. 1.92 km ESE of Fall City, Washington · 7317 days ago · 23 km deep · 60 km away
  22. 1.61 km SW of Fall City, Washington · 7314 days ago · 72 km deep · 60 km away
  23. 2.23 km SE of Dash Point, Washington · 7314 days ago · 29 km deep · 94 km away
  24. 1.63 km ESE of Oso, Washington · 7313 days ago · 13 km deep · 19 km away

Before

  1. 1.62 km SE of Oso, Washington · 7380 days ago · 11 km deep · 18 km away
  2. 1.82 km NE of Kirkland, Washington · 7381 days ago · 18 km deep · 47 km away
  3. 2.49 km ENE of Duvall, Washington · 7381 days ago · 2 km deep · 36 km away
  4. 1.83 km NNW of Duvall, Washington · 7382 days ago · 11 km deep · 36 km away
  5. 2.11 km SE of Acme, Washington · 7384 days ago · 19 km deep · 71 km away
  6. 1.61 km E of Clyde Hill, Washington · 7389 days ago · 29 km deep · 54 km away
  7. 1.8Puget Sound region, Washington · 7389 days ago · 28 km deep · 55 km away
  8. 2.42 km WSW of Wilderness Rim, Washington · 7393 days ago · 19 km deep · 74 km away
  9. 1.51 km ESE of Oak Harbor, Washington · 7394 days ago · 22 km deep · 55 km away
  10. 1.71 km ENE of Granite Falls, Washington · 7395 days ago · -1 km deep · 0 km away
  11. 3.613 km SE of Oak Bay, Canada · 7396 days ago · 45 km deep · 96 km away · felt by 257
  12. 2.13 km ESE of Duvall, Washington · 7396 days ago · 16 km deep · 39 km away
  13. 1.57 km ENE of Big Lake, Washington · 7399 days ago · -1 km deep · 40 km away
  14. 1.81 km S of Acme, Washington · 7400 days ago · 2 km deep · 70 km away
  15. 2.33 km ESE of Alger, Washington · 7400 days ago · 7 km deep · 63 km away
  16. 1.70 km NE of Tulalip Bay, Washington · 7401 days ago · 25 km deep · 26 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10704063. Read Sat, Oct 3, 2026, 8:27 AM UTC.