Washington earthquakes

M1.6 earthquake 8 km ENE of Snoqualmie, Washington

A magnitude 1.6 earthquake struck 8 km ENE of Snoqualmie, Washington on Mon, Dec 29, 1980, 6:57 PM PST (02:57 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M1.9 5 km SW of Rockport, Washington. This one was a foreshock.

Snoqualmie 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
1.6 (md), micro
Local time
UTC
1980-12-30 02:57:44 UTC
Depth
8.6 km (5.4 mi), shallow
Epicenter
47.564° N, 121.727° 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 0.5 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
123°
Stations used
8

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.95 km SW of Rockport, Washington · 16701 days ago · 8 km deep · 99 km away
  2. 2.014 km ENE of Snoqualmie Pass, Washington · 16700 days ago · 4 km deep · 41 km away
  3. 1.93 km SSW of Keyport, Washington · 16688 days ago · 54 km deep · 69 km away
  4. 1.82 km NW of Mirrormont, Washington · 16680 days ago · 10 km deep · 24 km away
  5. 3.06 km W of Seattle, Washington · 16678 days ago · 22 km deep · 52 km away
  6. 2.77 km ENE of Snoqualmie, Washington · 16672 days ago · 10 km deep · 1 km away
  7. 1.57 km ENE of Lake McMurray, Washington · 16670 days ago · 0 km deep · 91 km away
  8. 1.514 km SE of Verlot, Washington · 16667 days ago · 8 km deep · 51 km away
  9. 1.55 km ESE of Oso, Washington · 16665 days ago · -1 km deep · 77 km away
  10. 1.63 km E of Cle Elum, Washington · 16656 days ago · 7 km deep · 74 km away
  11. 1.911 km NNW of Swede Heaven, Washington · 16655 days ago · 9 km deep · 90 km away
  12. 2.62 km E of Cle Elum, Washington · 16655 days ago · 5 km deep · 74 km away
  13. 1.53 km ENE of Cle Elum, Washington · 16654 days ago · 0 km deep · 74 km away
  14. 4.23 km E of Cle Elum, Washington · 16652 days ago · 3 km deep · 75 km away
  15. 2.02 km E of Cle Elum, Washington · 16652 days ago · -1 km deep · 74 km away
  16. 2.00 km ENE of Lake Marcel-Stillwater, Washington · 16649 days ago · 7 km deep · 20 km away
  17. 1.81 km WNW of Federal Way, Washington · 16646 days ago · 15 km deep · 52 km away

Before

  1. 1.912 km ESE of Carbonado, Washington · 16703 days ago · 16 km deep · 59 km away
  2. 1.823 km NNW of Leavenworth, Washington · 16703 days ago · 13 km deep · 75 km away
  3. 1.91 km NNE of Picnic Point, Washington · 16705 days ago · 7 km deep · 58 km away
  4. 1.57 km NE of Bonney Lake, Washington · 16706 days ago · 12 km deep · 48 km away
  5. 1.99 km NE of Ashford, Washington · 16710 days ago · 9 km deep · 84 km away
  6. 2.06 km ENE of Snoqualmie, Washington · 16711 days ago · 10 km deep · 2 km away
  7. 1.53 km SW of Cottage Lake, Washington · 16715 days ago · 20 km deep · 34 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10096433. Read Tue, Sep 22, 2026, 4:57 AM UTC.