Washington earthquakes

M2.8 earthquake 3 km SW of Marrowstone, Washington

A magnitude 2.8 earthquake struck 3 km SW of Marrowstone, Washington on Sat, Dec 29, 1973, 8:48 AM PST (16:48 UTC), 45 km (28 mi) below the surface.

A larger quake followed: M3.1 6 km SSE of Quilcene, Washington. This one was a foreshock.

Marrowstone 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
2.8 (md), micro
Local time
UTC
1973-12-29 16:48:00 UTC
Depth
44.8 km (27.9 mi), shallow
Epicenter
48.026° N, 122.718° 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, 1.4 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
210°, 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: 15 in the 60 days after this one and 19 in the 30 days before it.

After

  1. 1.72 km NW of Lakeland South, Washington · 19256 days ago · 16 km deep · 87 km away
  2. 1.75 km NNE of Startup, Washington · 19254 days ago · 7 km deep · 76 km away
  3. 3.16 km SSE of Quilcene, Washington · 19252 days ago · 48 km deep · 30 km away
  4. 2.05 km NE of Belfair, Washington · 19251 days ago · 16 km deep · 61 km away
  5. 1.97 km ENE of Fall City, Washington · 19250 days ago · 6 km deep · 83 km away
  6. 1.78 km ENE of Tanner, Washington · 19248 days ago · 10 km deep · 100 km away
  7. 1.72 km E of Seattle, Washington · 19223 days ago · 4 km deep · 56 km away
  8. 1.84 km SSE of Seattle, Washington · 19223 days ago · 8 km deep · 59 km away
  9. 1.54 km NNW of Skokomish, Washington · 19219 days ago · 42 km deep · 81 km away
  10. 2.13 km N of Bryn Mawr-Skyway, Washington · 19216 days ago · 6 km deep · 66 km away
  11. 1.83 km S of Mercer Island, Washington · 19216 days ago · 11 km deep · 66 km away
  12. 1.73 km WNW of Rockport, Washington · 19209 days ago · -1 km deep · 96 km away
  13. 1.82 km WSW of Eastmont, Washington · 19203 days ago · 8 km deep · 40 km away
  14. 1.7Puget Sound region, Washington · 19202 days ago · 19 km deep · 63 km away
  15. 1.83 km NNE of Echo Lake, Washington · 19200 days ago · 21 km deep · 56 km away

Before

  1. 1.73 km SW of Seattle, Washington · 19262 days ago · 1 km deep · 56 km away
  2. 1.90 km NW of Seattle, Washington · 19263 days ago · -1 km deep · 54 km away
  3. 1.83 km WSW of Seattle, Washington · 19263 days ago · -1 km deep · 55 km away
  4. 2.40 km NE of Mercer Island, Washington · 19263 days ago · 20 km deep · 62 km away
  5. 2.31 km NNW of Lake Marcel-Stillwater, Washington · 19263 days ago · 23 km deep · 69 km away
  6. 1.515 km E of Lake Marcel-Stillwater, Washington · 19265 days ago · 15 km deep · 84 km away
  7. 1.70 km SW of Seattle, Washington · 19272 days ago · -1 km deep · 55 km away
  8. 1.63 km SW of Seattle, Washington · 19273 days ago · 1 km deep · 55 km away
  9. 1.93 km SSW of Clinton, Washington · 19274 days ago · 23 km deep · 27 km away
  10. 1.65 km SW of Seattle, Washington · 19274 days ago · 1 km deep · 57 km away
  11. 2.00 km N of Seattle, Washington · 19274 days ago · -1 km deep · 55 km away
  12. 2.90 km E of Seattle, Washington · 19274 days ago · 2 km deep · 55 km away
  13. 2.00 km S of Seattle, Washington · 19274 days ago · 0 km deep · 55 km away
  14. 1.81 km ENE of Parkwood, Washington · 19279 days ago · 25 km deep · 55 km away
  15. 1.61 km NW of Duvall, Washington · 19279 days ago · 23 km deep · 62 km away
  16. 2.47 km SE of Quilcene, Washington · 19280 days ago · 20 km deep · 30 km away
  17. 1.92 km E of City of Sammamish, Washington · 19282 days ago · 8 km deep · 71 km away
  18. 1.92 km NNW of Hunts Point, Washington · 19288 days ago · 0 km deep · 53 km away
  19. 1.87 km SW of Sultan, Washington · 19288 days ago · 8 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10858043. Read Tue, Sep 22, 2026, 12:51 AM UTC.