M1.5 earthquake 5 km SSE of Edison, Washington
A magnitude 1.5 earthquake struck 5 km SSE of Edison, Washington on Sun, Jun 4, 1978, 1:33 PM PDT (20:33 UTC), 17 km (11 mi) below the surface.
A larger quake followed: M2.2 4 km N of La Conner, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (md), micro
- Local time
- UTC
- 1978-06-04 20:33:42 UTC
- Depth
- 17.5 km (10.9 mi), shallow
- Epicenter
- 48.520° N, 122.404° 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 0.9 km horizontally, 2.1 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 112°
- Stations used
- 6
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 5 in the 30 days before it.
After
- 1.57 km E of Oak Bay, Canada · 17635 days ago · 47 km deep · 60 km away
- 1.58 km SSW of Gold Bar, Washington · 17635 days ago · 3 km deep · 94 km away
- 2.24 km N of La Conner, Washington · 17628 days ago · 24 km deep · 12 km away
- 1.64 km SE of Three Lakes, Washington · 17611 days ago · 15 km deep · 74 km away
- 1.59 km ENE of Oak Bay, Canada · 17609 days ago · 21 km deep · 58 km away
- 1.53 km E of Alger, Washington · 17602 days ago · 18 km deep · 14 km away
- 1.93 km E of Port Townsend, Washington · 17593 days ago · 23 km deep · 50 km away
- 1.54 km SW of Hansville, Washington · 17587 days ago · 12 km deep · 72 km away
Before
- 1.57 km WSW of Ault Field, Washington · 17651 days ago · 15 km deep · 36 km away
- 2.52 km ENE of Lake McMurray, Washington · 17657 days ago · 5 km deep · 27 km away
- 2.57 km ESE of Deming, Washington · 17660 days ago · 2 km deep · 38 km away
- 1.83 km N of Woods Creek, Washington · 17661 days ago · 5 km deep · 77 km away
- 2.39 km SSW of Gold Bar, Washington · 17672 days ago · 3 km deep · 95 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10847093. Read Tue, Sep 22, 2026, 11:33 AM UTC.