Washington earthquakes

M2.1 earthquake Washington

A magnitude 2.1 earthquake struck in Washington on Thu, Oct 27, 1977, 9:25 PM PDT (04:25 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.2 8 km NNW of Thorp, 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.

Open the live map with earthquakes

The earthquake

Magnitude
2.1 (md), micro
Local time
UTC
1977-10-28 04:25:39 UTC
Depth
6.8 km (4.2 mi), shallow
Epicenter
47.565° N, 121.791° 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 0.8 km horizontally, 1.6 km in depth
Depth from
From location
Station coverage gap
84°
Stations used
12

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 11 in the 30 days before it.

After

  1. 2.18 km NE of Duvall, Washington · 17863 days ago · 16 km deep · 27 km away
  2. 1.62 km W of Burley, Washington · 17854 days ago · 21 km deep · 68 km away
  3. 1.61 km N of Esperance, Washington · 17853 days ago · 6 km deep · 50 km away
  4. 2.28 km NNW of Thorp, Washington · 17851 days ago · 4 km deep · 93 km away
  5. 1.92 km SSE of Three Lakes, Washington · 17847 days ago · 8 km deep · 43 km away
  6. 1.92 km WSW of Ashford, Washington · 17847 days ago · 0 km deep · 93 km away
  7. 1.92 km SW of Ashford, Washington · 17847 days ago · -1 km deep · 94 km away
  8. 1.91 km NE of Maple Heights-Lake Desire, Washington · 17834 days ago · 16 km deep · 25 km away
  9. 2.124 km N of Packwood, Washington · 17831 days ago · 5 km deep · 82 km away
  10. 1.821 km SE of Carbonado, Washington · 17829 days ago · 17 km deep · 67 km away
  11. 1.70 km NNW of Clyde Hill, Washington · 17823 days ago · 21 km deep · 33 km away
  12. 2.11 km WNW of Indianola, Washington · 17821 days ago · 18 km deep · 60 km away
  13. 1.57 km WNW of Swede Heaven, Washington · 17818 days ago · 6 km deep · 82 km away
  14. 1.87 km NNE of Bryant, Washington · 17817 days ago · 2 km deep · 86 km away
  15. 1.63 km W of Suquamish, Washington · 17815 days ago · 24 km deep · 63 km away
  16. 1.54 km NW of Black Diamond, Washington · 17812 days ago · 12 km deep · 32 km away
  17. 1.54 km ESE of Indianola, Washington · 17811 days ago · 15 km deep · 54 km away
  18. 1.63 km W of Chico, Washington · 17810 days ago · 19 km deep · 73 km away
  19. 1.94 km NNE of Woods Creek, Washington · 17807 days ago · 12 km deep · 40 km away
  20. 1.60 km N of Southworth, Washington · 17806 days ago · 18 km deep · 54 km away
  21. 2.118 km N of Index, Washington · 17803 days ago · 5 km deep · 51 km away
  22. 1.718 km N of Index, Washington · 17803 days ago · 5 km deep · 51 km away
  23. 1.719 km N of Index, Washington · 17803 days ago · 8 km deep · 52 km away
  24. 1.817 km NE of May Creek, Washington · 17803 days ago · 8 km deep · 51 km away

Before

  1. 2.42 km NNE of Coupeville, Washington · 17869 days ago · 22 km deep · 100 km away
  2. 2.10 km E of Riverton, Washington · 17872 days ago · 22 km deep · 38 km away
  3. 1.625 km ENE of Ashford, Washington · 17873 days ago · 0 km deep · 80 km away
  4. 1.62 km NW of White Center, Washington · 17875 days ago · 19 km deep · 44 km away
  5. 1.82 km NNE of Carnation, Washington · 17879 days ago · 22 km deep · 14 km away
  6. 1.54 km E of Echo Lake, Washington · 17881 days ago · 19 km deep · 29 km away
  7. 1.81 km E of Enetai, Washington · 17882 days ago · 20 km deep · 59 km away
  8. 1.63 km NW of Suquamish, Washington · 17882 days ago · 21 km deep · 63 km away
  9. 1.64 km WNW of Mercer Island, Washington · 17887 days ago · 38 km deep · 36 km away
  10. 1.56 km SSW of Hansville, Washington · 17890 days ago · 15 km deep · 69 km away
  11. 1.914 km E of Wilkeson, Washington · 17891 days ago · 7 km deep · 52 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10845043. Read Wed, Sep 23, 2026, 8:50 PM UTC.