M1.7 earthquake 3 km NNE of Entiat, Washington
A magnitude 1.7 earthquake struck 3 km NNE of Entiat, Washington on Sun, Jan 2, 1977, 8:50 AM PST (16:50 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M1.8 5 km NE of Royal City, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.7 (md), micro
- Local time
- UTC
- 1977-01-02 16:50:15 UTC
- Depth
- -0.1 km (-0.0 mi), shallow
- Epicenter
- 47.705° N, 120.198° 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 0.5 km horizontally
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 228°, 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: 5 in the 60 days after this one and 7 in the 30 days before it.
After
- 1.85 km NE of Royal City, Washington · 18153 days ago · 1 km deep · 97 km away
- 3.25 km NE of Royal City, Washington · 18136 days ago · 1 km deep · 97 km away
- 1.75 km W of Waterville, Washington · 18135 days ago · 3 km deep · 8 km away
- 1.87 km W of Entiat, Washington · 18121 days ago · 2 km deep · 9 km away
- 1.64 km NNE of Waterville, Washington · 18109 days ago · 5 km deep · 11 km away
Before
- 1.820 km N of Leavenworth, Washington · 18161 days ago · 6 km deep · 35 km away
- 1.65 km W of Entiat, Washington · 18163 days ago · 11 km deep · 7 km away
- 1.65 km N of Entiat, Washington · 18174 days ago · 2 km deep · 2 km away
- 2.019 km E of Mansfield, Washington · 18176 days ago · -1 km deep · 63 km away
- 1.77 km W of Entiat, Washington · 18177 days ago · 3 km deep · 9 km away
- 3.14 km W of Waterville, Washington · 18181 days ago · 5 km deep · 8 km away
- 1.615 km E of Mansfield, Washington · 18190 days ago · 0 km deep · 59 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10842913. Read Wed, Sep 23, 2026, 1:58 AM UTC.