Washington earthquakes

M2.5 earthquake 2 km NNE of Riverton, Washington

A magnitude 2.5 earthquake struck 2 km NNE of Riverton, Washington on Thu, Nov 13, 1975, 3:59 AM PST (11:59 UTC), 27 km (17 mi) below the surface.

A larger quake followed: M3.3 3 km SE of Bethel, Washington. This one was a foreshock.

Riverton 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
2.5 (md), micro
Local time
UTC
1975-11-13 11:59:58 UTC
Depth
26.9 km (16.7 mi), shallow
Epicenter
47.502° N, 122.284° 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 0.6 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
61°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.11 km ENE of Lake Marcel-Stillwater, Washington · 18573 days ago · 6 km deep · 37 km away
  2. 1.52 km SW of Burley, Washington · 18572 days ago · 19 km deep · 30 km away
  3. 1.814 km ESE of Verlot, Washington · 18569 days ago · 8 km deep · 78 km away
  4. 1.72 km WSW of Monroe, Washington · 18568 days ago · -1 km deep · 44 km away
  5. 1.69 km NE of Tanner, Washington · 18568 days ago · 18 km deep · 47 km away
  6. 1.72 km NE of Monroe, Washington · 18567 days ago · 21 km deep · 48 km away
  7. 1.96 km ESE of Maplewood, Washington · 18566 days ago · 16 km deep · 20 km away
  8. 1.94 km SW of Snoqualmie, Washington · 18566 days ago · 15 km deep · 31 km away
  9. 1.71 km NE of Lake Marcel-Stillwater, Washington · 18563 days ago · 26 km deep · 36 km away
  10. 2.06 km N of Kingston, Washington · 18562 days ago · 10 km deep · 42 km away
  11. 1.88 km NNW of Camano, Washington · 18562 days ago · 27 km deep · 85 km away
  12. 2.11 km WSW of Gig Harbor, Washington · 18561 days ago · 33 km deep · 31 km away
  13. 2.23 km E of Lake Roesiger, Washington · 18553 days ago · 8 km deep · 61 km away
  14. 2.05 km NNW of Bainbridge Island, Washington · 18553 days ago · 19 km deep · 27 km away
  15. 1.72 km SSW of Kirkland, Washington · 18552 days ago · 11 km deep · 19 km away
  16. 1.72 km SSW of Union Hill-Novelty Hill, Washington · 18548 days ago · 2 km deep · 25 km away
  17. 1.82 km NNW of Manchester, Washington · 18545 days ago · 16 km deep · 22 km away
  18. 1.84 km SSW of Fall City, Washington · 18542 days ago · 14 km deep · 27 km away
  19. 1.52 km WNW of North Bend, Washington · 18541 days ago · -1 km deep · 35 km away
  20. 1.81 km W of Bryn Mawr-Skyway, Washington · 18535 days ago · 22 km deep · 2 km away
  21. 1.914 km ESE of Ashford, Washington · 18534 days ago · 5 km deep · 95 km away
  22. 1.61 km ESE of Ravensdale, Washington · 18533 days ago · 18 km deep · 30 km away
  23. 2.112 km ESE of Ashford, Washington · 18533 days ago · 4 km deep · 94 km away
  24. 2.41 km SE of Esperance, Washington · 18530 days ago · 22 km deep · 31 km away
  25. 2.55 km E of Longbranch, Washington · 18529 days ago · 41 km deep · 44 km away
  26. 1.92 km S of Ravensdale, Washington · 18526 days ago · 18 km deep · 29 km away
  27. 1.61 km WSW of Roosevelt, Washington · 18524 days ago · 14 km deep · 47 km away
  28. 1.92 km SE of Shoreline, Washington · 18524 days ago · 18 km deep · 26 km away
  29. 2.11 km NNE of Bellevue, Washington · 18523 days ago · 26 km deep · 15 km away
  30. 3.33 km SE of Bethel, Washington · 18523 days ago · 42 km deep · 24 km away
  31. 1.815 km ESE of Verlot, Washington · 18522 days ago · 6 km deep · 79 km away
  32. 1.62 km SW of Poulsbo, Washington · 18521 days ago · 16 km deep · 37 km away
  33. 1.714 km SE of Verlot, Washington · 18521 days ago · 3 km deep · 76 km away
  34. 2.311 km SE of Blyn, Washington · 18521 days ago · 48 km deep · 67 km away
  35. 2.45 km SW of Lake Cavanaugh, Washington · 18516 days ago · 9 km deep · 90 km away
  36. 2.16 km WSW of Lake Cavanaugh, Washington · 18516 days ago · 4 km deep · 90 km away

Before

  1. 1.62 km SSE of Hansville, Washington · 18577 days ago · 1 km deep · 48 km away
  2. 2.93 km SSE of Lake Roesiger, Washington · 18584 days ago · 17 km deep · 58 km away
  3. 1.53 km NNE of Verlot, Washington · 18587 days ago · 12 km deep · 79 km away
  4. 1.713 km WSW of Alder, Washington · 18597 days ago · -1 km deep · 86 km away
  5. 2.218 km N of Mossyrock, Washington · 18598 days ago · 2 km deep · 91 km away
  6. 1.76 km NNW of Bangor Trident Base, Washington · 18606 days ago · 13 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10862178. Read Tue, Sep 22, 2026, 5:30 AM UTC.