Washington earthquakes

M1.6 earthquake 13 km NNE of Cliffdell, Washington

A magnitude 1.6 earthquake struck 13 km NNE of Cliffdell, Washington on Sun, Sep 4, 1977, 10:24 PM PDT (05:24 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.1 15 km NNE of Ashford, Washington. This one was a foreshock.

South Cle Elum forecastMore in Washington

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
1.6 (md), micro
Local time
UTC
1977-09-05 05:24:46 UTC
Depth
7.2 km (4.5 mi), shallow
Epicenter
47.053° N, 120.992° 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 2.7 km horizontally
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
161°
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: 14 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 2.115 km NNE of Ashford, Washington · 17910 days ago · -1 km deep · 74 km away
  2. 1.56 km ESE of Lake Marcel-Stillwater, Washington · 17906 days ago · 16 km deep · 94 km away
  3. 1.74 km NE of North Bend, Washington · 17898 days ago · -1 km deep · 77 km away
  4. 1.63 km NE of Bonney Lake, Washington · 17897 days ago · 15 km deep · 90 km away
  5. 1.915 km NNE of Ashford, Washington · 17894 days ago · 4 km deep · 75 km away
  6. 1.914 km E of Wilkeson, Washington · 17890 days ago · 7 km deep · 65 km away
  7. 1.66 km W of Entiat, Washington · 17881 days ago · 0 km deep · 87 km away
  8. 2.913 km NNE of Ellensburg, Washington · 17881 days ago · 0 km deep · 39 km away
  9. 1.82 km NNE of Carnation, Washington · 17877 days ago · 22 km deep · 97 km away
  10. 1.86 km WNW of Entiat, Washington · 17873 days ago · 0 km deep · 88 km away
  11. 1.625 km ENE of Ashford, Washington · 17872 days ago · 0 km deep · 60 km away
  12. 1.74 km NNE of Entiat, Washington · 17867 days ago · 2 km deep · 95 km away
  13. 2.1Washington · 17862 days ago · 7 km deep · 83 km away
  14. 2.09 km ENE of Thorp, Washington · 17855 days ago · 10 km deep · 33 km away

Before

  1. 1.613 km SSW of South Cle Elum, Washington · 17915 days ago · 1 km deep · 2 km away
  2. 2.37 km NW of Entiat, Washington · 17921 days ago · 7 km deep · 91 km away
  3. 1.811 km W of Packwood, Washington · 17922 days ago · -1 km deep · 79 km away
  4. 1.52 km NW of Snoqualmie, Washington · 17923 days ago · 25 km deep · 85 km away
  5. 1.516 km S of Skykomish, Washington · 17925 days ago · 3 km deep · 64 km away
  6. 1.515 km NNE of Ashford, Washington · 17925 days ago · 15 km deep · 74 km away
  7. 1.717 km S of Skykomish, Washington · 17925 days ago · 3 km deep · 64 km away
  8. 1.917 km SE of Carbonado, Washington · 17925 days ago · 9 km deep · 69 km away
  9. 1.713 km SSW of South Cle Elum, Washington · 17928 days ago · 9 km deep · 3 km away
  10. 1.52 km NNE of Bonney Lake, Washington · 17940 days ago · 12 km deep · 91 km away
  11. 1.55 km SE of Mineral, Washington · 17943 days ago · 19 km deep · 95 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10844613. Read Tue, Sep 22, 2026, 7:46 PM UTC.