Washington earthquakes

M3.1 earthquake 4 km W of Waterville, Washington

A magnitude 3.1 earthquake struck 4 km W of Waterville, Washington on Mon, Dec 13, 1976, 12:47 AM PST (08:47 UTC), 5 km (3 mi) below the surface.

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

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Map

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

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The earthquake

Magnitude
3.1 (md), minor
Local time
UTC
1976-12-13 08:47:29 UTC
Depth
4.7 km (2.9 mi), shallow
Epicenter
47.651° N, 120.130° 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 0.8 km horizontally, 2.3 km in depth
Magnitude uncertainty
±0.02
Depth from
From location
Station coverage gap
93°
Stations used
10

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 3 in the 30 days before it.

After

  1. 1.77 km W of Entiat, Washington · 18185 days ago · 3 km deep · 13 km away
  2. 2.019 km E of Mansfield, Washington · 18183 days ago · -1 km deep · 60 km away
  3. 1.65 km N of Entiat, Washington · 18182 days ago · 2 km deep · 10 km away
  4. 1.65 km W of Entiat, Washington · 18171 days ago · 11 km deep · 12 km away
  5. 1.820 km N of Leavenworth, Washington · 18169 days ago · 6 km deep · 42 km away
  6. 1.73 km NNE of Entiat, Washington · 18168 days ago · 0 km deep · 8 km away
  7. 1.85 km NE of Royal City, Washington · 18161 days ago · 1 km deep · 90 km away
  8. 3.25 km NE of Royal City, Washington · 18144 days ago · 1 km deep · 89 km away
  9. 1.75 km W of Waterville, Washington · 18143 days ago · 3 km deep · 2 km away
  10. 1.87 km W of Entiat, Washington · 18129 days ago · 2 km deep · 14 km away

Before

  1. 1.615 km E of Mansfield, Washington · 18198 days ago · 0 km deep · 56 km away
  2. 1.78 km NNE of Waterville, Washington · 18198 days ago · 3 km deep · 10 km away
  3. 2.416 km SE of Skykomish, Washington · 18208 days ago · 6 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10842753. Read Thu, Oct 1, 2026, 1:16 AM UTC.