M1.9 earthquake 4 km E of Entiat, Washington
A magnitude 1.9 earthquake struck 4 km E of Entiat, Washington on Sun, Mar 28, 1976, 10:38 PM PST (06:38 UTC), 8 km (5 mi) below the surface.
A larger quake followed: M3.1 7 km N of Waterville, 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, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1976-03-29 06:38:50 UTC
- Depth
- 7.5 km (4.7 mi), shallow
- Epicenter
- 47.677° N, 120.154° 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 1.4 km horizontally, 2.5 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 161°
- 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: 11 in the 60 days after this one and 5 in the 30 days before it.
After
- 1.615 km S of Leavenworth, Washington · 18437 days ago · 5 km deep · 47 km away
- 1.81 km SE of North Omak, Washington · 18432 days ago · 0 km deep · 100 km away
- 1.59 km N of Chelan, Washington · 18429 days ago · 0 km deep · 29 km away
- 2.16 km S of Granite Falls, Washington · 18425 days ago · 0 km deep · 18 km away
- 1.912 km W of Quincy, Washington · 18409 days ago · 0 km deep · 50 km away
- 2.24 km SSE of Entiat, Washington · 18404 days ago · 9 km deep · 4 km away
- 1.617 km ENE of George, Washington · 18404 days ago · 12 km deep · 73 km away
- 1.818 km ENE of George, Washington · 18404 days ago · 16 km deep · 71 km away
- 1.817 km ENE of George, Washington · 18404 days ago · 4 km deep · 72 km away
- 3.17 km N of Waterville, Washington · 18401 days ago · 7 km deep · 8 km away
- 2.112 km NW of Entiat, Washington · 18400 days ago · 0 km deep · 16 km away
Before
- 1.512 km ESE of Mansfield, Washington · 18460 days ago · 0 km deep · 51 km away
- 1.712 km ESE of Mansfield, Washington · 18460 days ago · 0 km deep · 52 km away
- 2.06 km W of Easton, Washington · 18468 days ago · 14 km deep · 96 km away
- 1.84 km ENE of Royal City, Washington · 18470 days ago · 16 km deep · 96 km away
- 2.05 km SSE of Vantage, Washington · 18478 days ago · 4 km deep · 88 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10840993. Read Thu, Oct 1, 2026, 10:26 PM UTC.