M1.8 earthquake 4 km SSE of Seattle, Washington
A magnitude 1.8 earthquake struck 4 km SSE of Seattle, Washington on Sun, Feb 3, 1974, 12:36 PM PDT (19:36 UTC), 8 km (5 mi) below the surface.
A larger quake followed: M2.1 3 km N of Bryn Mawr-Skyway, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (md), micro
- Local time
- UTC
- 1974-02-03 19:36:25 UTC
- Depth
- 7.9 km (4.9 mi), shallow
- Epicenter
- 47.572° N, 122.303° W
- Region
- Washington
- 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 2.6 km horizontally, 3.2 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 150°
- 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: 9 in the 60 days after this one and 7 in the 30 days before it.
After
- 1.54 km NNW of Skokomish, Washington · 19219 days ago · 42 km deep · 70 km away
- 2.13 km N of Bryn Mawr-Skyway, Washington · 19216 days ago · 6 km deep · 7 km away
- 1.83 km S of Mercer Island, Washington · 19216 days ago · 11 km deep · 7 km away
- 1.82 km WSW of Eastmont, Washington · 19203 days ago · 8 km deep · 36 km away
- 1.7Puget Sound region, Washington · 19202 days ago · 19 km deep · 49 km away
- 1.83 km NNE of Echo Lake, Washington · 19200 days ago · 21 km deep · 34 km away
- 1.8Puget Sound region, Washington · 19192 days ago · 17 km deep · 47 km away
- 1.52 km ENE of Bonney Lake, Washington · 19185 days ago · 17 km deep · 44 km away
- 2.42 km SW of Medina, Washington · 19184 days ago · 5 km deep · 5 km away
Before
- 1.72 km E of Seattle, Washington · 19224 days ago · 4 km deep · 4 km away
- 1.91 km W of La Grande, Washington · 19232 days ago · 5 km deep · 82 km away
- 1.811 km WNW of Snoqualmie Pass, Washington · 19246 days ago · 0 km deep · 59 km away
- 1.78 km ENE of Tanner, Washington · 19248 days ago · 10 km deep · 51 km away
- 1.97 km ENE of Fall City, Washington · 19250 days ago · 6 km deep · 38 km away
- 2.05 km NE of Belfair, Washington · 19251 days ago · 16 km deep · 37 km away
- 3.16 km SSE of Quilcene, Washington · 19252 days ago · 48 km deep · 45 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10858243. Read Tue, Sep 22, 2026, 8:22 AM UTC.