Washington earthquakes

M1.9 earthquake 12 km E of Tanner, Washington

A magnitude 1.9 earthquake struck 12 km E of Tanner, Washington on Mon, Dec 27, 1976, 10:45 AM PST (18:45 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M2.3 13 km ENE of Ashford, 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
1.9 (md), micro
Local time
UTC
1976-12-27 18:45:08 UTC
Depth
21.8 km (13.5 mi), shallow
Epicenter
47.491° N, 121.584° 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 5.3 km horizontally, 4.3 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
215°, poorly surrounded by stations
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 35 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.313 km ENE of Ashford, Washington · 18165 days ago · 13 km deep · 80 km away
  2. 1.65 km W of Entiat, Washington · 18162 days ago · 11 km deep · 100 km away
  3. 1.9Puget Sound region, Washington · 18161 days ago · 17 km deep · 50 km away
  4. 1.820 km N of Leavenworth, Washington · 18161 days ago · 6 km deep · 77 km away
  5. 2.02 km NW of Indianola, Washington · 18158 days ago · 19 km deep · 78 km away
  6. 2.25 km W of Gorst, Washington · 18156 days ago · 19 km deep · 90 km away
  7. 1.93 km WSW of White Center, Washington · 18155 days ago · 29 km deep · 61 km away
  8. 2.22 km ENE of Lake Marcel-Stillwater, Washington · 18153 days ago · 23 km deep · 32 km away
  9. 2.39 km N of Greenwater, Washington · 18152 days ago · 14 km deep · 28 km away
  10. 2.13 km W of Mineral, Washington · 18149 days ago · 10 km deep · 99 km away
  11. 1.92 km SW of Mineral, Washington · 18149 days ago · 5 km deep · 99 km away
  12. 1.73 km W of Mineral, Washington · 18149 days ago · 10 km deep · 98 km away
  13. 2.013 km NNE of Tanner, Washington · 18148 days ago · 12 km deep · 11 km away
  14. 2.010 km NE of Snoqualmie, Washington · 18148 days ago · 8 km deep · 17 km away
  15. 1.94 km SSE of Seattle, Washington · 18138 days ago · 18 km deep · 55 km away
  16. 1.98 km ESE of Hobart, Washington · 18136 days ago · 4 km deep · 25 km away
  17. 1.87 km SW of Verlot, Washington · 18134 days ago · -1 km deep · 65 km away
  18. 1.99 km NE of Snoqualmie, Washington · 18133 days ago · 0 km deep · 17 km away
  19. 2.29 km NE of Snoqualmie, Washington · 18133 days ago · 8 km deep · 16 km away
  20. 2.89 km NE of Snoqualmie, Washington · 18132 days ago · 10 km deep · 17 km away
  21. 1.52 km W of White Center, Washington · 18132 days ago · 22 km deep · 60 km away
  22. 2.115 km SSE of Ashford, Washington · 18131 days ago · 42 km deep · 99 km away
  23. 2.22 km S of Monroe, Washington · 18130 days ago · 13 km deep · 48 km away
  24. 2.08 km NNE of Tanner, Washington · 18130 days ago · -1 km deep · 10 km away
  25. 2.28 km NE of North Bend, Washington · 18130 days ago · 10 km deep · 12 km away
  26. 1.82 km E of Edmonds, Washington · 18125 days ago · 19 km deep · 67 km away
  27. 1.92 km SSE of Issaquah, Washington · 18123 days ago · -1 km deep · 33 km away
  28. 2.66 km S of Sultan, Washington · 18122 days ago · 16 km deep · 38 km away
  29. 2.23 km NNE of Duvall, Washington · 18122 days ago · 22 km deep · 42 km away
  30. 1.87 km W of Entiat, Washington · 18121 days ago · 2 km deep · 98 km away
  31. 2.03 km SE of Shoreline, Washington · 18120 days ago · 15 km deep · 61 km away
  32. 1.91 km WNW of SeaTac, Washington · 18113 days ago · 23 km deep · 54 km away
  33. 2.412 km N of Ashford, Washington · 18113 days ago · 1 km deep · 77 km away
  34. 2.31 km NW of Lake Forest Park, Washington · 18111 days ago · 22 km deep · 62 km away
  35. 1.78 km NNE of Snoqualmie, Washington · 18110 days ago · 3 km deep · 18 km away

Before

  1. 1.62 km W of Wilderness Rim, Washington · 18173 days ago · 10 km deep · 17 km away
  2. 1.65 km WNW of Wauna, Washington · 18174 days ago · 19 km deep · 85 km away
  3. 1.84 km NNW of Dash Point, Washington · 18175 days ago · 6 km deep · 67 km away
  4. 1.77 km W of Entiat, Washington · 18176 days ago · 3 km deep · 98 km away
  5. 2.421 km E of Darrington, Washington · 18180 days ago · 11 km deep · 85 km away
  6. 1.60 km E of Clyde Hill, Washington · 18184 days ago · 24 km deep · 49 km away
  7. 1.51 km NNW of Kenmore, Washington · 18189 days ago · 56 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10842868. Read Tue, Sep 22, 2026, 8:22 PM UTC.