Washington earthquakes

M1.6 earthquake 2 km NNW of Kapowsin, Washington

A magnitude 1.6 earthquake struck 2 km NNW of Kapowsin, Washington on Sat, Feb 24, 1973, 9:32 AM PST (17:32 UTC), 67 km (41 mi) below the surface.

A larger quake followed: M2.1 1 km NNW of White Center, Washington. This one was a foreshock.

Graham 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
1.6 (md), micro
Local time
UTC
1973-02-24 17:32:30 UTC
Depth
66.6 km (41.4 mi), shallow
Epicenter
47.007° N, 122.239° 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 1.9 km horizontally, 1.5 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
224°, poorly surrounded by stations
Stations used
4

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 16 in the 30 days before it.

After

  1. 2.11 km NNW of White Center, Washington · 19568 days ago · 24 km deep · 59 km away
  2. 2.77 km SW of Morton, Washington · 19565 days ago · 15 km deep · 55 km away
  3. 2.531 km S of Mossyrock, Washington · 19565 days ago · 10 km deep · 85 km away
  4. 2.77 km SE of Mineral, Washington · 19559 days ago · 19 km deep · 38 km away
  5. 1.76 km SE of Mineral, Washington · 19555 days ago · 16 km deep · 38 km away
  6. 2.212 km NE of Ashford, Washington · 19551 days ago · 6 km deep · 30 km away
  7. 2.142 km NE of Amboy, Washington · 19549 days ago · 2 km deep · 93 km away
  8. 2.43 km NNE of Dash Point, Washington · 19539 days ago · 24 km deep · 41 km away
  9. 1.93 km ENE of McKenna, Washington · 19538 days ago · 31 km deep · 22 km away
  10. 1.711 km W of Shelton, Washington · 19534 days ago · 41 km deep · 80 km away
  11. 1.76 km SE of Maplewood, Washington · 19532 days ago · 20 km deep · 44 km away
  12. 2.14 km SW of Erlands Point-Kitsap Lake, Washington · 19526 days ago · 25 km deep · 74 km away
  13. 3.029 km S of Morton, Washington · 19526 days ago · 16 km deep · 79 km away
  14. 2.38 km E of Hobart, Washington · 19525 days ago · 9 km deep · 54 km away
  15. 2.110 km SE of Mineral, Washington · 19525 days ago · 26 km deep · 42 km away
  16. 2.00 km SSE of Clyde Hill, Washington · 19521 days ago · 24 km deep · 69 km away
  17. 3.77 km W of Lofall, Washington · 19520 days ago · 50 km deep · 99 km away
  18. 2.414 km NNE of Ashford, Washington · 19519 days ago · 1 km deep · 25 km away
  19. 1.93 km SW of Wilderness Rim, Washington · 19518 days ago · 18 km deep · 57 km away
  20. 2.02 km S of Wilderness Rim, Washington · 19515 days ago · 18 km deep · 58 km away
  21. 3.429 km S of Morton, Washington · 19514 days ago · 13 km deep · 79 km away
  22. 2.21 km N of Issaquah, Washington · 19514 days ago · 20 km deep · 62 km away
  23. 1.71 km SSE of Indianola, Washington · 19511 days ago · 29 km deep · 83 km away
  24. 2.13 km ENE of Seabeck, Washington · 19510 days ago · 22 km deep · 82 km away
  25. 2.62 km SSE of DuPont, Washington · 19509 days ago · 26 km deep · 29 km away

Before

  1. 1.67 km SW of North Bend, Washington · 19568 days ago · 20 km deep · 57 km away
  2. 1.516 km N of Hoodsport, Washington · 19570 days ago · -1 km deep · 93 km away
  3. 3.87 km W of Home, Washington · 19570 days ago · 21 km deep · 55 km away
  4. 2.18 km WNW of Gorst, Washington · 19571 days ago · 7 km deep · 74 km away
  5. 1.53 km NW of Indianola, Washington · 19575 days ago · 22 km deep · 89 km away
  6. 2.01 km E of Bangor Trident Base, Washington · 19577 days ago · 19 km deep · 87 km away
  7. 2.213 km SSW of May Creek, Washington · 19579 days ago · 21 km deep · 91 km away
  8. 1.65 km WSW of Mercer Island, Washington · 19579 days ago · 17 km deep · 61 km away
  9. 2.66 km SSE of Brady, Washington · 19580 days ago · 28 km deep · 94 km away
  10. 1.94 km SSW of Gorst, Washington · 19584 days ago · 22 km deep · 65 km away
  11. 2.815 km SE of Ashford, Washington · 19584 days ago · 7 km deep · 46 km away
  12. 3.04 km SW of Southworth, Washington · 19586 days ago · 46 km deep · 58 km away
  13. 1.71 km E of Sammamish, Washington · 19586 days ago · 7 km deep · 72 km away
  14. 2.27 km NE of Lake Marcel-Stillwater, Washington · 19591 days ago · -1 km deep · 86 km away
  15. 1.80 km NNE of City of Sammamish, Washington · 19594 days ago · 15 km deep · 68 km away
  16. 1.90 km NNW of Beaux Arts Village, Washington · 19595 days ago · 20 km deep · 65 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10855878. Read Tue, Sep 22, 2026, 4:15 PM UTC.