M1.9 earthquake 9 km SSW of Hamilton, Washington
A magnitude 1.9 earthquake struck 9 km SSW of Hamilton, Washington on Sat, Jul 3, 1976, 10:55 PM PDT (05:55 UTC), 19 km (12 mi) below the surface.
A larger quake followed: M2.7 4 km SSE of Birch Bay, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (md), micro
- Local time
- UTC
- 1976-07-04 05:55:48 UTC
- Depth
- 19.0 km (11.8 mi), shallow
- Epicenter
- 48.436° N, 122.028° 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 0.0 km horizontally, 0.0 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- Operator assigned
- Station coverage gap
- 190°, poorly surrounded by stations
- 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 6 in the 30 days before it.
After
- 1.61 km SSW of Mukilteo, Washington · 18336 days ago · 32 km deep · 60 km away
- 1.50 km N of Edmonds, Washington · 18333 days ago · 21 km deep · 74 km away
- 1.64 km SE of Lake Roesiger, Washington · 18326 days ago · 10 km deep · 54 km away
- 1.57 km N of Anacortes, Washington · 18317 days ago · -1 km deep · 46 km away
- 2.74 km SSE of Birch Bay, Washington · 18312 days ago · 17 km deep · 71 km away
- 1.52 km NW of Inglewood-Finn Hill, Washington · 18309 days ago · 25 km deep · 80 km away
- 1.57 km NNE of Skykomish, Washington · 18305 days ago · 5 km deep · 91 km away
- 1.73 km ENE of Camano, Washington · 18292 days ago · 22 km deep · 44 km away
- 2.116 km SSW of Concrete, Washington · 18292 days ago · 3 km deep · 14 km away
Before
- 1.66 km SSW of La Conner, Washington · 18354 days ago · 14 km deep · 39 km away
- 1.610 km NE of May Creek, Washington · 18355 days ago · 3 km deep · 65 km away
- 2.11 km W of Lake McMurray, Washington · 18356 days ago · 7 km deep · 22 km away
- 2.112 km NE of May Creek, Washington · 18360 days ago · 3 km deep · 65 km away
- 1.73 km S of Lake Forest Park, Washington · 18372 days ago · 24 km deep · 82 km away
- 2.28 km S of Concrete, Washington · 18372 days ago · 4 km deep · 22 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10841643. Read Tue, Sep 22, 2026, 4:10 PM UTC.