Washington earthquakes

M1.9 earthquake 9 km W of Entiat, Washington

A magnitude 1.9 earthquake struck 9 km W of Entiat, Washington on Sun, Dec 16, 1979, 12:16 PM PST (20:16 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.0 3 km NNE 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
1.9 (md), micro
Local time
UTC
1979-12-16 20:16:13 UTC
Depth
-0.7 km (-0.4 mi), shallow
Epicenter
47.678° N, 120.333° 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 0.0 km horizontally, 0.1 km in depth
Magnitude uncertainty
±0.06
Depth from
Operator assigned
Station coverage gap
150°
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: 16 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.67 km SSE of Okanogan, Washington · 17080 days ago · 3 km deep · 91 km away
  2. 1.73 km NNE of Royal City, Washington · 17076 days ago · 0 km deep · 100 km away
  3. 1.83 km NNE of Royal City, Washington · 17076 days ago · 1 km deep · 100 km away
  4. 1.517 km ESE of Mansfield, Washington · 17076 days ago · 0 km deep · 69 km away
  5. 2.03 km NNE of Royal City, Washington · 17074 days ago · 0 km deep · 100 km away
  6. 1.63 km NE of Royal City, Washington · 17073 days ago · 3 km deep · 100 km away
  7. 1.85 km N of Royal City, Washington · 17073 days ago · 0 km deep · 96 km away
  8. 1.73 km NNE of Royal City, Washington · 17073 days ago · 0 km deep · 99 km away
  9. 1.64 km NNE of Royal City, Washington · 17073 days ago · 1 km deep · 99 km away
  10. 1.73 km NNE of Royal City, Washington · 17072 days ago · 0 km deep · 99 km away
  11. 1.53 km NNE of Royal City, Washington · 17072 days ago · 0 km deep · 100 km away
  12. 2.62 km NNE of Chelan, Washington · 17068 days ago · -1 km deep · 32 km away
  13. 1.513 km SSW of Leavenworth, Washington · 17058 days ago · 1 km deep · 36 km away
  14. 1.715 km S of Ellensburg, Washington · 17042 days ago · 12 km deep · 92 km away
  15. 2.11 km W of Skykomish, Washington · 17034 days ago · 0 km deep · 79 km away
  16. 2.412 km W of Snoqualmie Pass, Washington · 17032 days ago · 95 km deep · 98 km away

Before

  1. 2.214 km S of Snoqualmie Pass, Washington · 17084 days ago · 3 km deep · 93 km away
  2. 2.69 km SW of Chelan Falls, Washington · 17094 days ago · 6 km deep · 21 km away
  3. 1.615 km W of Entiat, Washington · 17099 days ago · 0 km deep · 6 km away
  4. 1.55 km NE of Royal City, Washington · 17104 days ago · 0 km deep · 100 km away
  5. 2.54 km NE of Royal City, Washington · 17104 days ago · 2 km deep · 100 km away
  6. 1.56 km NE of Royal City, Washington · 17110 days ago · 0 km deep · 99 km away
  7. 1.55 km NE of Royal City, Washington · 17111 days ago · 2 km deep · 99 km away
  8. 1.722 km E of Mansfield, Washington · 17112 days ago · 0 km deep · 77 km away
  9. 2.117 km ESE of Mansfield, Washington · 17112 days ago · 0 km deep · 69 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10851533. Read Tue, Sep 22, 2026, 9:33 PM UTC.