M1.9 earthquake 8 km NNW of Friday Harbor, Washington
A magnitude 1.9 earthquake struck 8 km NNW of Friday Harbor, Washington on Sun, Feb 6, 1977, 9:42 PM PST (05:42 UTC), 7 km (4 mi) below the surface.
A larger quake followed: M2.1 8 km S of Acme, 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
- 1977-02-07 05:42:16 UTC
- Depth
- 7.1 km (4.4 mi), shallow
- Epicenter
- 48.599° N, 123.068° 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 1.7 km horizontally, 2.6 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 248°, poorly surrounded by stations
- Stations used
- 5
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 1.57 km SSE of Blyn, Washington · 18091 days ago · 20 km deep · 71 km away
- 2.18 km S of Acme, Washington · 18065 days ago · 2 km deep · 64 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10843138. Read Tue, Sep 22, 2026, 9:31 PM UTC.