Washington earthquakes

M1.7 earthquake 3 km W of Covington, Washington

A magnitude 1.7 earthquake struck 3 km W of Covington, Washington on Sat, Jun 23, 1979, 8:34 AM PDT (15:34 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M2.5 6 km S of Vashon, Washington. This one was a foreshock.

Covington 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), micro
Local time
UTC
1979-06-23 15:34:09 UTC
Depth
0.9 km (0.6 mi), shallow
Epicenter
47.358° N, 122.167° 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 0.6 km horizontally, 1.5 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
53°
Stations used
16

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 4 in the 30 days before it.

After

  1. 2.56 km S of Vashon, Washington · 17254 days ago · 48 km deep · 22 km away
  2. 1.51 km NNW of Lofall, Washington · 17249 days ago · 20 km deep · 64 km away
  3. 3.69 km SSW of Morton, Washington · 17244 days ago · 20 km deep · 99 km away
  4. 2.710 km SSW of Morton, Washington · 17244 days ago · 22 km deep · 100 km away
  5. 1.99 km SSW of Morton, Washington · 17243 days ago · 20 km deep · 99 km away
  6. 1.810 km SSW of Morton, Washington · 17242 days ago · 19 km deep · 99 km away
  7. 1.69 km SSW of Morton, Washington · 17242 days ago · 19 km deep · 98 km away
  8. 2.36 km W of Burley, Washington · 17240 days ago · 23 km deep · 42 km away
  9. 1.610 km NE of Hoodsport, Washington · 17237 days ago · -1 km deep · 68 km away
  10. 1.90 km SE of Union Hill-Novelty Hill, Washington · 17232 days ago · 18 km deep · 37 km away
  11. 1.53 km N of Union Hill-Novelty Hill, Washington · 17222 days ago · 21 km deep · 41 km away
  12. 2.33 km WSW of Snohomish, Washington · 17220 days ago · 23 km deep · 61 km away
  13. 1.83 km ENE of Eastmont, Washington · 17220 days ago · 23 km deep · 61 km away
  14. 1.99 km ENE of Tanner, Washington · 17217 days ago · 9 km deep · 43 km away
  15. 1.77 km E of Carnation, Washington · 17211 days ago · 11 km deep · 43 km away
  16. 1.5Washington · 17211 days ago · 13 km deep · 98 km away

Before

  1. 2.42 km W of Fox Island, Washington · 17265 days ago · 23 km deep · 39 km away
  2. 1.74 km ENE of Verlot, Washington · 17281 days ago · 14 km deep · 90 km away
  3. 2.315 km NNW of Cliffdell, Washington · 17285 days ago · 4 km deep · 81 km away
  4. 1.717 km N of Mossyrock, Washington · 17287 days ago · -1 km deep · 78 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10850028. Read Tue, Sep 22, 2026, 11:09 AM UTC.