Washington earthquakes

M1.7 earthquake 12 km NE of Snoqualmie, Washington

A magnitude 1.7 earthquake struck 12 km NE of Snoqualmie, Washington on Mon, Sep 26, 1983, 8:07 AM PDT (15:07 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M2.7 2 km W of Rosedale, Washington. This one was a foreshock.

Snoqualmie 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
1.7 (md), micro
Local time
UTC
1983-09-26 15:07:41 UTC
Depth
11.8 km (7.3 mi), shallow
Epicenter
47.619° N, 121.736° 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, 0.2 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
138°
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: 34 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 2.72 km W of Rosedale, Washington · 15700 days ago · 27 km deep · 78 km away
  2. 1.61 km N of Normandy Park, Washington · 15699 days ago · 17 km deep · 49 km away
  3. 1.99 km SE of Riverbend, Washington · 15697 days ago · 2 km deep · 23 km away
  4. 1.62 km WNW of Keyport, Washington · 15695 days ago · 23 km deep · 69 km away
  5. 2.04 km S of Des Moines, Washington · 15694 days ago · 13 km deep · 53 km away
  6. 1.85 km E of Granite Falls, Washington · 15694 days ago · -1 km deep · 54 km away
  7. 3.05 km WNW of Wilderness Rim, Washington · 15694 days ago · 21 km deep · 19 km away
  8. 1.52 km NE of Woods Creek, Washington · 15692 days ago · 12 km deep · 33 km away
  9. 1.917 km SE of Carbonado, Washington · 15692 days ago · -1 km deep · 76 km away
  10. 1.56 km W of Rockport, Washington · 15690 days ago · 1 km deep · 96 km away
  11. 2.29 km NNW of Lake Cavanaugh, Washington · 15688 days ago · -1 km deep · 91 km away
  12. 1.87 km NW of Belfair, Washington · 15687 days ago · 17 km deep · 88 km away
  13. 1.89 km ESE of Verlot, Washington · 15684 days ago · 3 km deep · 48 km away
  14. 1.53 km WSW of Chico, Washington · 15684 days ago · 12 km deep · 77 km away
  15. 2.310 km NNW of Belfair, Washington · 15683 days ago · 21 km deep · 86 km away
  16. 1.63 km S of Mount Vernon, Washington · 15682 days ago · 15 km deep · 96 km away
  17. 1.58 km NW of Greenwater, Washington · 15681 days ago · -1 km deep · 46 km away
  18. 2.13 km E of Cle Elum, Washington · 15681 days ago · -1 km deep · 79 km away
  19. 2.36 km WSW of Lake Cavanaugh, Washington · 15680 days ago · 11 km deep · 81 km away
  20. 1.71 km NNW of Snoqualmie, Washington · 15677 days ago · 1 km deep · 11 km away
  21. 2.02 km NNW of Lakeland South, Washington · 15672 days ago · 13 km deep · 55 km away
  22. 2.28 km S of Leavenworth, Washington · 15671 days ago · 1 km deep · 82 km away
  23. 1.71 km NNE of Union Hill-Novelty Hill, Washington · 15667 days ago · 10 km deep · 23 km away
  24. 1.55 km SW of Hansville, Washington · 15667 days ago · 21 km deep · 72 km away
  25. 2.45 km WSW of Lake Cavanaugh, Washington · 15666 days ago · 6 km deep · 82 km away
  26. 2.13 km ENE of May Creek, Washington · 15663 days ago · 10 km deep · 28 km away
  27. 2.00 km NE of Roslyn, Washington · 15656 days ago · 3 km deep · 71 km away
  28. 1.65 km NE of Mirrormont, Washington · 15656 days ago · 15 km deep · 21 km away
  29. 2.922 km NE of Ashford, Washington · 15653 days ago · -1 km deep · 83 km away
  30. 1.94 km NNW of Bryn Mawr-Skyway, Washington · 15652 days ago · 11 km deep · 42 km away
  31. 1.73 km NNW of White Center, Washington · 15651 days ago · 21 km deep · 48 km away
  32. 2.07 km NE of Lofall, Washington · 15650 days ago · 19 km deep · 70 km away
  33. 1.55 km NNE of Bryant, Washington · 15646 days ago · 15 km deep · 79 km away
  34. 1.51 km SE of Coupeville, Washington · 15645 days ago · 20 km deep · 96 km away

Before

  1. 1.82 km E of Granite Falls, Washington · 15712 days ago · -1 km deep · 54 km away
  2. 1.91 km NNE of Lake Roesiger, Washington · 15714 days ago · 11 km deep · 44 km away
  3. 2.211 km ESE of Carbonado, Washington · 15715 days ago · 18 km deep · 65 km away
  4. 1.81 km WNW of Lake Roesiger, Washington · 15718 days ago · 13 km deep · 44 km away
  5. 2.65 km SSW of Hansville, Washington · 15724 days ago · 22 km deep · 69 km away
  6. 2.227 km S of Greenwater, Washington · 15724 days ago · -1 km deep · 79 km away
  7. 1.82 km W of Coupeville, Washington · 15724 days ago · 23 km deep · 99 km away
  8. 1.91 km WNW of Federal Way, Washington · 15726 days ago · 16 km deep · 55 km away
  9. 2.03 km NNE of Camano, Washington · 15727 days ago · 23 km deep · 87 km away
  10. 2.53 km SE of Bangor Trident Base, Washington · 15728 days ago · 19 km deep · 72 km away
  11. 2.62 km SSE of Tulalip Bay, Washington · 15731 days ago · 14 km deep · 61 km away
  12. 3.911 km W of Port Ludlow, Washington · 15732 days ago · 51 km deep · 89 km away
  13. 1.73 km ENE of Granite Falls, Washington · 15732 days ago · -1 km deep · 55 km away
  14. 1.920 km ENE of Ashford, Washington · 15732 days ago · 0 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10164613. Read Wed, Sep 23, 2026, 12:56 AM UTC.