Washington earthquakes

M2.9 earthquake 2 km N of Union, Washington

A magnitude 2.9 earthquake struck 2 km N of Union, Washington on Sat, Aug 8, 1970, 3:36 PM PDT (22:36 UTC), 36 km (22 mi) below the surface.

Union 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
2.9 (md), micro
Local time
UTC
1970-08-08 22:36:40 UTC
Depth
36.0 km (22.4 mi), shallow
Epicenter
47.375° N, 123.106° 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 1.6 km horizontally, 2.7 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
185°, 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: 21 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 2.15 km SSE of Orting, Washington · 20497 days ago · 0 km deep · 79 km away
  2. 2.12 km NNE of Yarrow Point, Washington · 20493 days ago · 22 km deep · 75 km away
  3. 2.06 km SW of Alder, Washington · 20491 days ago · 25 km deep · 90 km away
  4. 1.63 km SSE of Ames Lake, Washington · 20485 days ago · 20 km deep · 91 km away
  5. 2.01 km ENE of Sammamish, Washington · 20484 days ago · 20 km deep · 84 km away
  6. 2.72 km SSE of Carbonado, Washington · 20484 days ago · 3 km deep · 88 km away
  7. 1.85 km SSW of Gorst, Washington · 20477 days ago · 22 km deep · 30 km away
  8. 1.97 km NNW of Freeland, Washington · 20475 days ago · 58 km deep · 88 km away
  9. 2.18 km N of Rochester, Washington · 20474 days ago · 47 km deep · 53 km away
  10. 2.99 km S of Carbonado, Washington · 20473 days ago · 3 km deep · 90 km away
  11. 2.13 km NW of Belfair, Washington · 20453 days ago · 21 km deep · 22 km away
  12. 2.34 km SSE of Carbonado, Washington · 20452 days ago · 12 km deep · 90 km away
  13. 1.70 km ENE of Carbonado, Washington · 20452 days ago · 3 km deep · 86 km away
  14. 1.92 km SSE of Carbonado, Washington · 20452 days ago · 3 km deep · 88 km away
  15. 1.58 km NNE of Brinnon, Washington · 20450 days ago · 18 km deep · 46 km away
  16. 2.84 km ENE of Kingston, Washington · 20449 days ago · 9 km deep · 70 km away
  17. 1.514 km W of Brinnon, Washington · 20447 days ago · 44 km deep · 33 km away
  18. 1.76 km SSE of Vashon, Washington · 20445 days ago · 20 km deep · 52 km away
  19. 2.13 km S of Shoreline, Washington · 20445 days ago · 14 km deep · 69 km away
  20. 2.04 km NE of Vashon, Washington · 20445 days ago · 22 km deep · 53 km away
  21. 2.34 km SE of Carbonado, Washington · 20443 days ago · 9 km deep · 90 km away

Before

  1. 2.46 km ENE of Lofall, Washington · 20505 days ago · 18 km deep · 66 km away
  2. 2.22 km NNE of Snoqualmie, Washington · 20515 days ago · 16 km deep · 99 km away
  3. 2.11 km NNE of Bellevue, Washington · 20520 days ago · 27 km deep · 74 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10836768. Read Tue, Sep 22, 2026, 9:30 PM UTC.