Washington earthquakes

M1.8 earthquake 4 km SSW of Fall City, Washington

A magnitude 1.8 earthquake struck 4 km SSW of Fall City, Washington on Wed, Dec 17, 1975, 3:40 AM PST (11:40 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M1.9 14 km ESE of Ashford, Washington. This one was a foreshock.

Fall City 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
1975-12-17 11:40:10 UTC
Depth
14.0 km (8.7 mi), shallow
Epicenter
47.529° N, 121.920° 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 0.5 km horizontally, 1.3 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
111°
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: 29 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.52 km WNW of North Bend, Washington · 18541 days ago · -1 km deep · 9 km away
  2. 1.81 km W of Bryn Mawr-Skyway, Washington · 18535 days ago · 22 km deep · 26 km away
  3. 1.914 km ESE of Ashford, Washington · 18534 days ago · 5 km deep · 93 km away
  4. 1.61 km ESE of Ravensdale, Washington · 18534 days ago · 18 km deep · 20 km away
  5. 2.112 km ESE of Ashford, Washington · 18534 days ago · 4 km deep · 92 km away
  6. 2.41 km SE of Esperance, Washington · 18530 days ago · 22 km deep · 42 km away
  7. 2.55 km E of Longbranch, Washington · 18529 days ago · 41 km deep · 67 km away
  8. 1.92 km S of Ravensdale, Washington · 18526 days ago · 18 km deep · 22 km away
  9. 1.61 km WSW of Roosevelt, Washington · 18524 days ago · 14 km deep · 41 km away
  10. 1.92 km SE of Shoreline, Washington · 18524 days ago · 18 km deep · 37 km away
  11. 2.11 km NNE of Bellevue, Washington · 18523 days ago · 26 km deep · 23 km away
  12. 3.33 km SE of Bethel, Washington · 18523 days ago · 42 km deep · 51 km away
  13. 1.815 km ESE of Verlot, Washington · 18522 days ago · 6 km deep · 62 km away
  14. 1.62 km SW of Poulsbo, Washington · 18521 days ago · 16 km deep · 60 km away
  15. 1.714 km SE of Verlot, Washington · 18521 days ago · 3 km deep · 59 km away
  16. 2.311 km SE of Blyn, Washington · 18521 days ago · 48 km deep · 87 km away
  17. 2.45 km SW of Lake Cavanaugh, Washington · 18516 days ago · 9 km deep · 86 km away
  18. 2.16 km WSW of Lake Cavanaugh, Washington · 18516 days ago · 4 km deep · 87 km away
  19. 1.811 km NE of Ashford, Washington · 18505 days ago · 8 km deep · 76 km away
  20. 1.97 km E of Verlot, Washington · 18504 days ago · -1 km deep · 65 km away
  21. 2.91 km NNE of Silver Firs, Washington · 18501 days ago · 14 km deep · 42 km away
  22. 1.71 km SW of Union Hill-Novelty Hill, Washington · 18500 days ago · 8 km deep · 18 km away
  23. 1.65 km WSW of Home, Washington · 18499 days ago · 16 km deep · 75 km away
  24. 1.76 km SE of Port Ludlow, Washington · 18498 days ago · 14 km deep · 66 km away
  25. 1.85 km SW of Lake Cavanaugh, Washington · 18497 days ago · 13 km deep · 86 km away
  26. 3.52 km E of Conway, Washington · 18497 days ago · 15 km deep · 95 km away
  27. 1.52 km W of Fall City, Washington · 18488 days ago · 16 km deep · 4 km away
  28. 1.56 km W of DuPont, Washington · 18488 days ago · 51 km deep · 76 km away
  29. 2.14 km NNE of Covington, Washington · 18486 days ago · 18 km deep · 20 km away

Before

  1. 1.82 km NNW of Manchester, Washington · 18545 days ago · 16 km deep · 48 km away
  2. 1.72 km SSW of Union Hill-Novelty Hill, Washington · 18548 days ago · 2 km deep · 18 km away
  3. 1.72 km SSW of Kirkland, Washington · 18552 days ago · 11 km deep · 27 km away
  4. 2.05 km NNW of Bainbridge Island, Washington · 18553 days ago · 19 km deep · 50 km away
  5. 2.23 km E of Lake Roesiger, Washington · 18553 days ago · 8 km deep · 50 km away
  6. 2.11 km WSW of Gig Harbor, Washington · 18561 days ago · 33 km deep · 56 km away
  7. 1.88 km NNW of Camano, Washington · 18562 days ago · 27 km deep · 93 km away
  8. 2.06 km N of Kingston, Washington · 18562 days ago · 10 km deep · 55 km away
  9. 1.71 km NE of Lake Marcel-Stillwater, Washington · 18564 days ago · 26 km deep · 19 km away
  10. 1.94 km SW of Snoqualmie, Washington · 18566 days ago · 15 km deep · 5 km away
  11. 1.96 km ESE of Maplewood, Washington · 18566 days ago · 16 km deep · 45 km away
  12. 1.72 km NE of Monroe, Washington · 18567 days ago · 21 km deep · 38 km away
  13. 1.69 km NE of Tanner, Washington · 18568 days ago · 18 km deep · 19 km away
  14. 1.72 km WSW of Monroe, Washington · 18568 days ago · -1 km deep · 36 km away
  15. 1.814 km ESE of Verlot, Washington · 18569 days ago · 8 km deep · 62 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10862363. Read Tue, Sep 22, 2026, 8:20 AM UTC.