Washington earthquakes

M2.1 earthquake 6 km NNE of Snoqualmie, Washington

A magnitude 2.1 earthquake struck 6 km NNE of Snoqualmie, Washington on Wed, Apr 28, 1971, 7:39 PM PDT (02:39 UTC), 12 km (8 mi) below the surface.

A larger quake followed: M2.8 4 km NE of Duvall, 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
2.1 (md), micro
Local time
UTC
1971-04-29 02:39:32 UTC
Depth
12.3 km (7.6 mi), shallow
Epicenter
47.580° N, 121.793° 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 3.3 km horizontally, 6.4 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
241°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.02 km SW of Cottage Lake, Washington · 20228 days ago · 19 km deep · 28 km away
  2. 2.06 km E of Ashford, Washington · 20224 days ago · 2 km deep · 92 km away
  3. 2.84 km NE of Duvall, Washington · 20224 days ago · 19 km deep · 25 km away
  4. 2.20 km W of Bryn Mawr-Skyway, Washington · 20220 days ago · 24 km deep · 36 km away
  5. 2.118 km E of Greenwater, Washington · 20213 days ago · 8 km deep · 57 km away
  6. 2.40 km NE of Lakeland South, Washington · 20198 days ago · 18 km deep · 49 km away
  7. 1.911 km NNW of Belfair, Washington · 20198 days ago · 20 km deep · 83 km away
  8. 2.12 km ESE of Riverbend, Washington · 20195 days ago · 5 km deep · 15 km away
  9. 1.92 km ESE of Riverbend, Washington · 20195 days ago · 5 km deep · 15 km away
  10. 2.117 km SSW of Greenwater, Washington · 20191 days ago · 21 km deep · 62 km away
  11. 2.027 km E of Skykomish, Washington · 20187 days ago · -1 km deep · 61 km away
  12. 1.87 km WNW of Allyn, Washington · 20180 days ago · 19 km deep · 86 km away
  13. 1.50 km ENE of Mercer Island, Washington · 20180 days ago · 18 km deep · 31 km away
  14. 2.30 km N of Beaux Arts Village, Washington · 20180 days ago · 19 km deep · 31 km away
  15. 2.20 km W of Beaux Arts Village, Washington · 20180 days ago · 20 km deep · 31 km away
  16. 3.30 km W of Beaux Arts Village, Washington · 20179 days ago · 18 km deep · 31 km away
  17. 1.70 km SSE of Wilburton, Washington · 20179 days ago · 21 km deep · 29 km away
  18. 3.0Puget Sound region, Washington · 20178 days ago · 19 km deep · 32 km away
  19. 2.00 km WNW of Newport, Washington · 20178 days ago · 22 km deep · 30 km away
  20. 2.30 km NNE of Beaux Arts Village, Washington · 20178 days ago · 21 km deep · 30 km away
  21. 1.63 km ENE of White Center, Washington · 20177 days ago · 19 km deep · 39 km away
  22. 3.30 km E of Mercer Island, Washington · 20176 days ago · 21 km deep · 32 km away

Before

  1. 1.68 km WNW of Gorst, Washington · 20240 days ago · 14 km deep · 76 km away
  2. 2.815 km N of Index, Washington · 20243 days ago · 11 km deep · 46 km away
  3. 2.69 km NE of May Creek, Washington · 20244 days ago · 11 km deep · 41 km away
  4. 2.01 km WNW of Burien, Washington · 20252 days ago · 26 km deep · 44 km away
  5. 2.10 km SSW of Woodinville, Washington · 20257 days ago · 21 km deep · 34 km away
  6. 3.27 km SSW of Brinnon, Washington · 20261 days ago · 14 km deep · 85 km away
  7. 2.70 km WNW of Burley, Washington · 20264 days ago · 41 km deep · 66 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10838963. Read Tue, Sep 22, 2026, 9:14 AM UTC.