Washington earthquakes

M3.5 earthquake 4 km NE of Blyn, Washington

A magnitude 3.5 earthquake struck 4 km NE of Blyn, Washington on Sun, Mar 5, 1978, 10:13 AM PST (18:13 UTC), 53 km (33 mi) below the surface.

A larger quake followed: M4.8 5 km W of Burley, 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
3.5 (md), minor
Local time
UTC
1978-03-05 18:13:36 UTC
Depth
52.9 km (32.9 mi), shallow
Epicenter
48.053° N, 122.959° 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 0.9 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
176°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.58 km ENE of Marrowstone, Washington · 17731 days ago · 54 km deep · 28 km away
  2. 1.50 km E of Inglewood-Finn Hill, Washington · 17730 days ago · 9 km deep · 66 km away
  3. 4.85 km W of Burley, Washington · 17726 days ago · 22 km deep · 73 km away
  4. 1.53 km W of Burley, Washington · 17726 days ago · 22 km deep · 74 km away
  5. 1.85 km W of Burley, Washington · 17726 days ago · 22 km deep · 73 km away
  6. 2.25 km W of Burley, Washington · 17726 days ago · 21 km deep · 73 km away
  7. 1.74 km W of Burley, Washington · 17726 days ago · 21 km deep · 73 km away
  8. 1.54 km W of Burley, Washington · 17725 days ago · 25 km deep · 73 km away
  9. 1.72 km W of La Conner, Washington · 17710 days ago · 22 km deep · 49 km away
  10. 2.110 km SE of Orcas, Washington · 17709 days ago · 56 km deep · 53 km away
  11. 2.95 km WSW of Coupeville, Washington · 17708 days ago · 21 km deep · 22 km away
  12. 4.16 km W of Burley, Washington · 17706 days ago · 21 km deep · 73 km away
  13. 2.211 km SSW of Seabeck, Washington · 17704 days ago · 16 km deep · 55 km away
  14. 1.86 km WNW of Burley, Washington · 17700 days ago · 23 km deep · 71 km away
  15. 1.86 km W of Burley, Washington · 17700 days ago · 22 km deep · 72 km away
  16. 1.55 km SE of Hansville, Washington · 17681 days ago · 50 km deep · 39 km away
  17. 2.23 km WSW of Artondale, Washington · 17681 days ago · 23 km deep · 87 km away
  18. 1.72 km W of Artondale, Washington · 17680 days ago · 23 km deep · 87 km away
  19. 1.70 km W of Lyman, Washington · 17676 days ago · -1 km deep · 84 km away
  20. 1.75 km W of Burley, Washington · 17675 days ago · 21 km deep · 73 km away
  21. 1.92 km SSE of Belfair, Washington · 17674 days ago · 19 km deep · 70 km away

Before

  1. 1.82 km SW of Suquamish, Washington · 17733 days ago · 17 km deep · 47 km away
  2. 1.61 km WNW of Larch Way, Washington · 17734 days ago · 13 km deep · 57 km away
  3. 1.51 km WNW of Freeland, Washington · 17735 days ago · 50 km deep · 31 km away
  4. 1.67 km NNE of May Creek, Washington · 17737 days ago · 9 km deep · 99 km away
  5. 2.10 km NNW of Woodway, Washington · 17738 days ago · 11 km deep · 51 km away
  6. 2.1Puget Sound region, Washington · 17739 days ago · 19 km deep · 75 km away
  7. 2.24 km SSW of La Conner, Washington · 17753 days ago · 17 km deep · 46 km away
  8. 1.78 km S of Swede Heaven, Washington · 17754 days ago · 8 km deep · 93 km away
  9. 3.127 km W of Quilcene, Washington · 17755 days ago · 41 km deep · 35 km away
  10. 2.08 km WNW of Gorst, Washington · 17756 days ago · 21 km deep · 57 km away
  11. 1.95 km SE of Klahanie, Washington · 17760 days ago · 19 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10846048 (also filed as usp0000t8b). Read Mon, Sep 21, 2026, 4:02 PM UTC.