Washington earthquakes

M1.7 earthquake 7 km W of Entiat, Washington

A magnitude 1.7 earthquake struck 7 km W of Entiat, Washington on Fri, Dec 17, 1976, 2:25 AM PST (10:25 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.2 5 km NE of Royal City, Washington. This one was a foreshock.

Entiat forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.7 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1976-12-17 10:25:11 UTC
Depth
2.9 km (1.8 mi), shallow
Epicenter
47.671° N, 120.307° W
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 0.7 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
259°, poorly surrounded by stations
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: 10 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.019 km E of Mansfield, Washington · 18187 days ago · -1 km deep · 72 km away
  2. 1.65 km N of Entiat, Washington · 18186 days ago · 2 km deep · 10 km away
  3. 1.912 km E of Tanner, Washington · 18178 days ago · 22 km deep · 98 km away
  4. 1.65 km W of Entiat, Washington · 18174 days ago · 11 km deep · 2 km away
  5. 1.820 km N of Leavenworth, Washington · 18172 days ago · 6 km deep · 29 km away
  6. 1.73 km NNE of Entiat, Washington · 18172 days ago · 0 km deep · 9 km away
  7. 1.85 km NE of Royal City, Washington · 18164 days ago · 1 km deep · 98 km away
  8. 3.25 km NE of Royal City, Washington · 18147 days ago · 1 km deep · 98 km away
  9. 1.75 km W of Waterville, Washington · 18146 days ago · 3 km deep · 13 km away
  10. 1.87 km W of Entiat, Washington · 18132 days ago · 2 km deep · 1 km away

Before

  1. 2.421 km E of Darrington, Washington · 18191 days ago · 11 km deep · 98 km away
  2. 3.14 km W of Waterville, Washington · 18192 days ago · 5 km deep · 13 km away
  3. 1.615 km E of Mansfield, Washington · 18201 days ago · 0 km deep · 68 km away
  4. 1.78 km NNE of Waterville, Washington · 18202 days ago · 3 km deep · 21 km away
  5. 2.416 km SE of Skykomish, Washington · 18211 days ago · 6 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10842798. Read Sun, Oct 4, 2026, 8:32 AM UTC.