Washington earthquakes

M2.9 earthquake 1 km SW of Ketron, Washington

A magnitude 2.9 earthquake struck 1 km SW of Ketron, Washington on Thu, Dec 30, 1971, 5:45 PM PST (01:45 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M3.6 1 km NE of Artondale, 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
2.9 (md), micro
Local time
UTC
1971-12-31 01:45:15 UTC
Depth
23.5 km (14.6 mi), shallow
Epicenter
47.143° N, 122.631° 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 0.4 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
118°
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: 25 in the 60 days after this one and 27 in the 30 days before it.

After

  1. 2.60 km WSW of Beaux Arts Village, Washington · 19988 days ago · 19 km deep · 59 km away
  2. 2.16 km SE of Bainbridge Island, Washington · 19987 days ago · 20 km deep · 51 km away
  3. 2.34 km WSW of Shelton, Washington · 19985 days ago · 15 km deep · 40 km away
  4. 1.91 km WSW of Keyport, Washington · 19983 days ago · 27 km deep · 62 km away
  5. 2.60 km W of Beaux Arts Village, Washington · 19979 days ago · 20 km deep · 59 km away
  6. 3.61 km NE of Artondale, Washington · 19975 days ago · 45 km deep · 19 km away
  7. 2.25 km SW of Des Moines, Washington · 19975 days ago · 19 km deep · 32 km away
  8. 2.04 km E of Tanner, Washington · 19975 days ago · 79 km deep · 80 km away
  9. 2.87 km NW of Belfair, Washington · 19974 days ago · 23 km deep · 44 km away
  10. 1.90 km SSE of Tracyton, Washington · 19974 days ago · 23 km deep · 51 km away
  11. 2.31 km NW of Bothell West, Washington · 19974 days ago · 21 km deep · 80 km away
  12. 2.14 km SW of Yelm, Washington · 19974 days ago · 23 km deep · 25 km away
  13. 2.95 km NNE of Dash Point, Washington · 19973 days ago · 13 km deep · 30 km away
  14. 3.02 km E of Carnation, Washington · 19972 days ago · 18 km deep · 80 km away
  15. 1.92 km W of White Center, Washington · 19969 days ago · 24 km deep · 45 km away
  16. 2.80 km SSE of Beaux Arts Village, Washington · 19968 days ago · 21 km deep · 59 km away
  17. 2.32 km S of Ames Lake, Washington · 19964 days ago · 19 km deep · 72 km away
  18. 2.23 km WNW of Medina, Washington · 19962 days ago · 8 km deep · 60 km away
  19. 2.32 km NW of Southworth, Washington · 19959 days ago · 20 km deep · 43 km away
  20. 2.01 km NE of Burien, Washington · 19955 days ago · 27 km deep · 43 km away
  21. 2.213 km SSW of Alder, Washington · 19949 days ago · 29 km deep · 54 km away
  22. 3.41 km S of Vaughn, Washington · 19936 days ago · 5 km deep · 23 km away
  23. 2.47 km SSW of Brinnon, Washington · 19932 days ago · 16 km deep · 57 km away
  24. 1.82 km SSW of Union Hill-Novelty Hill, Washington · 19932 days ago · 15 km deep · 72 km away
  25. 2.31 km NNE of Mercer Island, Washington · 19929 days ago · 20 km deep · 58 km away

Before

  1. 3.21 km W of Chico, Washington · 19990 days ago · 12 km deep · 52 km away
  2. 2.421 km S of Morton, Washington · 19991 days ago · 24 km deep · 90 km away
  3. 1.81 km S of Beaux Arts Village, Washington · 19992 days ago · 19 km deep · 58 km away
  4. 1.81 km WSW of Mercer Island, Washington · 19992 days ago · 21 km deep · 56 km away
  5. 2.21 km SW of Beaux Arts Village, Washington · 19992 days ago · 20 km deep · 58 km away
  6. 1.50 km ESE of Mercer Island, Washington · 19992 days ago · 21 km deep · 57 km away
  7. 2.21 km NNE of Mercer Island, Washington · 19992 days ago · 19 km deep · 58 km away
  8. 4.11 km ENE of Mercer Island, Washington · 19992 days ago · 21 km deep · 58 km away
  9. 1.74 km W of Chico, Washington · 19993 days ago · 20 km deep · 54 km away
  10. 2.24 km W of Chico, Washington · 19993 days ago · 21 km deep · 53 km away
  11. 2.10 km NNE of Mercer Island, Washington · 19993 days ago · 20 km deep · 57 km away
  12. 1.80 km SE of Kingsgate, Washington · 19995 days ago · 17 km deep · 73 km away
  13. 3.49 km NNW of Belfair, Washington · 19997 days ago · 17 km deep · 47 km away
  14. 2.65 km ESE of Freeland, Washington · 19998 days ago · 17 km deep · 95 km away
  15. 1.89 km W of Belfair, Washington · 19998 days ago · 1 km deep · 42 km away
  16. 2.018 km SSE of Carbonado, Washington · 20000 days ago · 4 km deep · 57 km away
  17. 2.32 km ENE of Snoqualmie, Washington · 20001 days ago · 12 km deep · 77 km away
  18. 2.39 km ENE of Snoqualmie, Washington · 20004 days ago · 9 km deep · 84 km away
  19. 2.60 km N of Mercer Island, Washington · 20005 days ago · 20 km deep · 57 km away
  20. 3.63 km NNW of Satsop, Washington · 20006 days ago · 27 km deep · 66 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10852408. Read Tue, Sep 22, 2026, 5:00 AM UTC.