Washington earthquakes

M1.8 earthquake 16 km SW of Brinnon, Washington

A magnitude 1.8 earthquake struck 16 km SW of Brinnon, Washington on Mon, Jan 1, 1973, 3:13 AM PST (11:13 UTC), 40 km (25 mi) below the surface.

A larger quake followed: M2.2 5 km SW of Wilderness Rim, Washington. This one was a foreshock.

Brinnon 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
1.8 (md), micro
Local time
UTC
1973-01-01 11:13:05 UTC
Depth
39.9 km (24.8 mi), shallow
Epicenter
47.586° N, 123.065° 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 1.8 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
183°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.65 km ENE of Carnation, Washington · 19619 days ago · 24 km deep · 92 km away
  2. 1.66 km W of Lofall, Washington · 19610 days ago · 18 km deep · 34 km away
  3. 2.25 km SW of Wilderness Rim, Washington · 19609 days ago · 18 km deep · 95 km away
  4. 3.44 km NW of Woods Creek, Washington · 19607 days ago · 18 km deep · 91 km away
  5. 1.94 km NNW of Woods Creek, Washington · 19607 days ago · 15 km deep · 93 km away
  6. 1.64 km WSW of Woodway, Washington · 19600 days ago · 3 km deep · 52 km away
  7. 2.84 km E of Oak Bay, Canada · 19598 days ago · 23 km deep · 97 km away
  8. 2.03 km ESE of Black Diamond, Washington · 19598 days ago · 10 km deep · 89 km away
  9. 1.90 km NNW of Beaux Arts Village, Washington · 19594 days ago · 20 km deep · 65 km away
  10. 1.80 km NNE of City of Sammamish, Washington · 19594 days ago · 15 km deep · 77 km away
  11. 3.025 km NNE of Amanda Park, Washington · 19593 days ago · 49 km deep · 52 km away
  12. 2.27 km NE of Lake Marcel-Stillwater, Washington · 19591 days ago · -1 km deep · 93 km away
  13. 2.18 km SW of Carlsborg, Washington · 19590 days ago · 44 km deep · 52 km away
  14. 1.71 km E of Sammamish, Washington · 19586 days ago · 7 km deep · 76 km away
  15. 3.04 km SW of Southworth, Washington · 19586 days ago · 46 km deep · 40 km away
  16. 1.94 km SSW of Gorst, Washington · 19583 days ago · 22 km deep · 27 km away
  17. 2.66 km SSE of Brady, Washington · 19580 days ago · 28 km deep · 78 km away
  18. 1.65 km WSW of Mercer Island, Washington · 19579 days ago · 17 km deep · 59 km away
  19. 2.01 km E of Bangor Trident Base, Washington · 19577 days ago · 19 km deep · 32 km away
  20. 1.53 km NW of Indianola, Washington · 19574 days ago · 22 km deep · 44 km away
  21. 2.18 km WNW of Gorst, Washington · 19571 days ago · 7 km deep · 19 km away
  22. 3.87 km W of Home, Washington · 19570 days ago · 21 km deep · 38 km away
  23. 1.516 km N of Hoodsport, Washington · 19570 days ago · -1 km deep · 9 km away
  24. 1.67 km SW of North Bend, Washington · 19568 days ago · 20 km deep · 91 km away
  25. 1.62 km NNW of Kapowsin, Washington · 19568 days ago · 67 km deep · 90 km away
  26. 2.11 km NNW of White Center, Washington · 19568 days ago · 24 km deep · 53 km away

Before

  1. 1.81 km NW of Larch Way, Washington · 19624 days ago · 25 km deep · 67 km away
  2. 1.81 km WSW of Wauna, Washington · 19625 days ago · 21 km deep · 39 km away
  3. 1.60 km W of Riverbend, Washington · 19626 days ago · 23 km deep · 99 km away
  4. 1.90 km N of Newport, Washington · 19629 days ago · 20 km deep · 66 km away
  5. 2.14 km NNW of Maplewood, Washington · 19629 days ago · 17 km deep · 40 km away
  6. 1.93 km NNE of Indianola, Washington · 19630 days ago · 15 km deep · 47 km away
  7. 1.89 km SW of Wilderness Rim, Washington · 19638 days ago · 7 km deep · 93 km away
  8. 2.09 km ENE of Duvall, Washington · 19641 days ago · 28 km deep · 92 km away
  9. 2.820 km WSW of Brinnon, Washington · 19642 days ago · 42 km deep · 7 km away
  10. 2.72 km SW of Southworth, Washington · 19645 days ago · 27 km deep · 41 km away
  11. 1.76 km S of Port Hadlock-Irondale, Washington · 19648 days ago · 29 km deep · 48 km away
  12. 3.24 km SE of Kingston, Washington · 19648 days ago · 20 km deep · 50 km away
  13. 3.927 km S of Port Angeles East, Washington · 19648 days ago · 43 km deep · 40 km away
  14. 1.910 km E of Carnation, Washington · 19650 days ago · 10 km deep · 97 km away
  15. 3.66 km ENE of Belfair, Washington · 19651 days ago · 15 km deep · 26 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10840123. Read Tue, Sep 22, 2026, 12:24 PM UTC.