Washington earthquakes

M1.6 earthquake 0 km W of Riverbend, Washington

A magnitude 1.6 earthquake struck 0 km W of Riverbend, Washington on Thu, Dec 28, 1972, 3:50 AM PST (11:50 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M1.8 1 km WSW of Wauna, 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
1.6 (md), micro
Local time
UTC
1972-12-28 11:50:46 UTC
Depth
22.9 km (14.2 mi), shallow
Epicenter
47.466° N, 121.755° 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 1.0 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
183°, 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: 30 in the 60 days after this one and 20 in the 30 days before it.

After

  1. 1.81 km WSW of Wauna, Washington · 19625 days ago · 21 km deep · 68 km away
  2. 1.81 km NW of Larch Way, Washington · 19624 days ago · 25 km deep · 57 km away
  3. 2.27 km WSW of Lake Cavanaugh, Washington · 19623 days ago · 14 km deep · 97 km away
  4. 1.816 km SW of Brinnon, Washington · 19622 days ago · 40 km deep · 99 km away
  5. 2.47 km NNE of Bryant, Washington · 19622 days ago · 14 km deep · 97 km away
  6. 1.65 km ENE of Carnation, Washington · 19619 days ago · 24 km deep · 23 km away
  7. 1.66 km W of Lofall, Washington · 19610 days ago · 18 km deep · 83 km away
  8. 2.25 km SW of Wilderness Rim, Washington · 19609 days ago · 18 km deep · 7 km away
  9. 3.44 km NW of Woods Creek, Washington · 19608 days ago · 18 km deep · 51 km away
  10. 1.94 km NNW of Woods Creek, Washington · 19608 days ago · 15 km deep · 52 km away
  11. 1.920 km SW of Nile, Washington · 19605 days ago · 6 km deep · 95 km away
  12. 1.64 km WSW of Woodway, Washington · 19600 days ago · 3 km deep · 62 km away
  13. 2.03 km ESE of Black Diamond, Washington · 19598 days ago · 10 km deep · 25 km away
  14. 1.90 km NNW of Beaux Arts Village, Washington · 19595 days ago · 20 km deep · 36 km away
  15. 1.80 km NNE of City of Sammamish, Washington · 19594 days ago · 15 km deep · 26 km away
  16. 2.27 km NE of Lake Marcel-Stillwater, Washington · 19591 days ago · -1 km deep · 31 km away
  17. 1.71 km E of Sammamish, Washington · 19586 days ago · 7 km deep · 30 km away
  18. 3.04 km SW of Southworth, Washington · 19586 days ago · 46 km deep · 60 km away
  19. 2.815 km SE of Ashford, Washington · 19584 days ago · 7 km deep · 88 km away
  20. 1.94 km SSW of Gorst, Washington · 19584 days ago · 22 km deep · 74 km away
  21. 1.73 km ENE of Verlot, Washington · 19580 days ago · 13 km deep · 71 km away
  22. 1.65 km WSW of Mercer Island, Washington · 19579 days ago · 17 km deep · 41 km away
  23. 2.213 km SSW of May Creek, Washington · 19579 days ago · 21 km deep · 31 km away
  24. 2.01 km E of Bangor Trident Base, Washington · 19577 days ago · 19 km deep · 76 km away
  25. 1.53 km NW of Indianola, Washington · 19575 days ago · 22 km deep · 69 km away
  26. 2.18 km WNW of Gorst, Washington · 19571 days ago · 7 km deep · 80 km away
  27. 3.87 km W of Home, Washington · 19571 days ago · 21 km deep · 86 km away
  28. 1.67 km SW of North Bend, Washington · 19568 days ago · 20 km deep · 9 km away
  29. 1.62 km NNW of Kapowsin, Washington · 19568 days ago · 67 km deep · 63 km away
  30. 2.11 km NNW of White Center, Washington · 19568 days ago · 24 km deep · 46 km away

Before

  1. 1.90 km N of Newport, Washington · 19629 days ago · 20 km deep · 34 km away
  2. 2.14 km NNW of Maplewood, Washington · 19630 days ago · 17 km deep · 62 km away
  3. 1.93 km NNE of Indianola, Washington · 19630 days ago · 15 km deep · 66 km away
  4. 2.214 km N of Cliffdell, Washington · 19632 days ago · 8 km deep · 69 km away
  5. 1.89 km SW of Wilderness Rim, Washington · 19638 days ago · 7 km deep · 11 km away
  6. 2.09 km ENE of Duvall, Washington · 19642 days ago · 28 km deep · 36 km away
  7. 2.89 km ESE of Ashford, Washington · 19642 days ago · 9 km deep · 83 km away
  8. 2.72 km SW of Southworth, Washington · 19645 days ago · 27 km deep · 58 km away
  9. 1.87 km ESE of Riverbend, Washington · 19645 days ago · -1 km deep · 8 km away
  10. 2.59 km W of Packwood, Washington · 19645 days ago · 7 km deep · 97 km away
  11. 1.912 km ESE of Cle Elum, Washington · 19647 days ago · 0 km deep · 81 km away
  12. 1.76 km S of Port Hadlock-Irondale, Washington · 19648 days ago · 29 km deep · 96 km away
  13. 3.24 km SE of Kingston, Washington · 19648 days ago · 20 km deep · 62 km away
  14. 1.910 km E of Carnation, Washington · 19650 days ago · 10 km deep · 19 km away
  15. 3.66 km ENE of Belfair, Washington · 19651 days ago · 15 km deep · 75 km away
  16. 1.98 km E of Ashford, Washington · 19653 days ago · -1 km deep · 79 km away
  17. 1.75 km SW of Verlot, Washington · 19655 days ago · -1 km deep · 67 km away
  18. 1.57 km NE of Brinnon, Washington · 19655 days ago · -1 km deep · 85 km away
  19. 1.57 km WNW of Bangor Trident Base, Washington · 19655 days ago · -1 km deep · 85 km away
  20. 2.07 km NE of Quilcene, Washington · 19656 days ago · 46 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10855488. Read Tue, Sep 22, 2026, 4:18 PM UTC.