Washington earthquakes

M1.6 earthquake 1 km ESE of Riverbend, Washington

A magnitude 1.6 earthquake struck 1 km ESE of Riverbend, Washington on Sat, Feb 26, 1983, 6:14 AM PST (14:14 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M2.2 5 km N of Startup, Washington. This one was a foreshock.

Riverbend 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
1.6 (md), micro
Local time
UTC
1983-02-26 14:14:32 UTC
Depth
14.9 km (9.3 mi), shallow
Epicenter
47.459° N, 121.733° 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, 0.5 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
125°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 45 in the 60 days after this one and 26 in the 30 days before it.

After

  1. 2.25 km N of Startup, Washington · 15912 days ago · 5 km deep · 51 km away
  2. 1.68 km SSE of Leavenworth, Washington · 15912 days ago · 9 km deep · 84 km away
  3. 1.52 km ESE of Lake Cavanaugh, Washington · 15911 days ago · -1 km deep · 97 km away
  4. 1.88 km SSE of Leavenworth, Washington · 15909 days ago · 1 km deep · 83 km away
  5. 2.92 km W of Fall City, Washington · 15909 days ago · 2 km deep · 18 km away
  6. 1.917 km NE of May Creek, Washington · 15908 days ago · 6 km deep · 60 km away
  7. 1.92 km NNW of Skykomish, Washington · 15906 days ago · 0 km deep · 40 km away
  8. 1.65 km N of North Sultan, Washington · 15905 days ago · 12 km deep · 53 km away
  9. 1.82 km WSW of Wilderness Rim, Washington · 15903 days ago · 20 km deep · 5 km away
  10. 2.04 km NNW of Fall City, Washington · 15902 days ago · 12 km deep · 21 km away
  11. 1.81 km WNW of City of Sammamish, Washington · 15901 days ago · 6 km deep · 29 km away
  12. 2.013 km E of Verlot, Washington · 15901 days ago · 4 km deep · 72 km away
  13. 2.03 km WSW of Wilderness Rim, Washington · 15901 days ago · 18 km deep · 6 km away
  14. 2.53 km NNW of Gorst, Washington · 15900 days ago · -1 km deep · 76 km away
  15. 2.34 km ESE of Cathcart, Washington · 15900 days ago · 17 km deep · 47 km away
  16. 1.94 km WSW of Wilderness Rim, Washington · 15900 days ago · 18 km deep · 7 km away
  17. 2.01 km ESE of Clyde Hill, Washington · 15895 days ago · 24 km deep · 40 km away
  18. 2.35 km WNW of Meadowdale, Washington · 15894 days ago · 15 km deep · 68 km away
  19. 1.83 km ESE of Wilderness Rim, Washington · 15888 days ago · 1 km deep · 3 km away
  20. 1.82 km ESE of Wilderness Rim, Washington · 15888 days ago · 2 km deep · 3 km away
  21. 2.11 km S of Lake Marcel-Stillwater, Washington · 15887 days ago · 12 km deep · 28 km away
  22. 1.714 km SSE of Carbonado, Washington · 15886 days ago · 5 km deep · 58 km away
  23. 1.76 km SW of Hansville, Washington · 15884 days ago · 18 km deep · 81 km away
  24. 1.61 km N of Ames Lake, Washington · 15881 days ago · 69 km deep · 27 km away
  25. 2.710 km NNE of Snoqualmie, Washington · 15878 days ago · 12 km deep · 17 km away
  26. 1.80 km E of Clyde Hill, Washington · 15877 days ago · 23 km deep · 40 km away
  27. 1.913 km E of Wilkeson, Washington · 15876 days ago · 9 km deep · 43 km away
  28. 1.76 km SW of Hansville, Washington · 15876 days ago · 16 km deep · 81 km away
  29. 1.52 km N of Skykomish, Washington · 15875 days ago · 1 km deep · 41 km away
  30. 1.97 km NE of North Bend, Washington · 15874 days ago · -1 km deep · 10 km away
  31. 1.82 km NNW of Lake Roesiger, Washington · 15874 days ago · 3 km deep · 63 km away
  32. 1.76 km NE of Lofall, Washington · 15874 days ago · 21 km deep · 79 km away
  33. 1.95 km S of Monroe, Washington · 15873 days ago · -1 km deep · 43 km away
  34. 1.812 km NW of Packwood, Washington · 15872 days ago · 7 km deep · 87 km away
  35. 1.71 km S of Lakeland North, Washington · 15872 days ago · 1 km deep · 44 km away
  36. 1.74 km SW of Seattle, Washington · 15870 days ago · 24 km deep · 50 km away
  37. 1.78 km S of Leavenworth, Washington · 15869 days ago · 1 km deep · 82 km away
  38. 1.88 km SSE of Leavenworth, Washington · 15868 days ago · 7 km deep · 83 km away
  39. 1.51 km WSW of Woodway, Washington · 15867 days ago · 18 km deep · 62 km away
  40. 1.810 km S of Darrington, Washington · 15865 days ago · 7 km deep · 78 km away
  41. 1.78 km SSW of Baring, Washington · 15860 days ago · 85 km deep · 31 km away
  42. 1.60 km NNE of Bothell West, Washington · 15860 days ago · 24 km deep · 54 km away
  43. 1.716 km SSW of Greenwater, Washington · 15859 days ago · -1 km deep · 50 km away
  44. 1.81 km NW of Silver Firs, Washington · 15858 days ago · 22 km deep · 57 km away
  45. 1.74 km N of Quilcene, Washington · 15854 days ago · 5 km deep · 97 km away

Before

  1. 2.11 km W of Crocker, Washington · 15915 days ago · 9 km deep · 51 km away
  2. 1.63 km NW of White Center, Washington · 15915 days ago · 17 km deep · 50 km away
  3. 2.11 km NW of Lake Roesiger, Washington · 15917 days ago · 15 km deep · 61 km away
  4. 2.00 km WNW of Lake Roesiger, Washington · 15917 days ago · 14 km deep · 61 km away
  5. 1.85 km SW of Erlands Point-Kitsap Lake, Washington · 15918 days ago · -1 km deep · 77 km away
  6. 1.73 km ENE of Granite Falls, Washington · 15919 days ago · -1 km deep · 72 km away
  7. 1.53 km SSW of Puyallup, Washington · 15923 days ago · 21 km deep · 55 km away
  8. 1.74 km W of Vashon, Washington · 15924 days ago · 50 km deep · 59 km away
  9. 1.913 km WSW of Greenwater, Washington · 15928 days ago · 14 km deep · 38 km away
  10. 1.716 km NE of May Creek, Washington · 15929 days ago · 7 km deep · 59 km away
  11. 1.93 km ENE of Snoqualmie, Washington · 15930 days ago · 16 km deep · 10 km away
  12. 1.613 km NNE of Cliffdell, Washington · 15933 days ago · -1 km deep · 71 km away
  13. 2.413 km SSW of South Cle Elum, Washington · 15933 days ago · 0 km deep · 71 km away
  14. 2.01 km SW of Port Orchard, Washington · 15933 days ago · 21 km deep · 69 km away
  15. 1.51 km WSW of Echo Lake, Washington · 15935 days ago · 21 km deep · 43 km away
  16. 2.09 km ESE of Carbonado, Washington · 15938 days ago · 2 km deep · 46 km away
  17. 1.64 km SSW of Des Moines, Washington · 15938 days ago · 13 km deep · 47 km away
  18. 1.74 km S of Seattle, Washington · 15938 days ago · 17 km deep · 46 km away
  19. 1.913 km ENE of Verlot, Washington · 15939 days ago · 8 km deep · 75 km away
  20. 2.210 km WSW of Mineral, Washington · 15940 days ago · 17 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10153398. Read Tue, Sep 22, 2026, 7:43 AM UTC.