Washington earthquakes

M1.9 earthquake 16 km WNW of Packwood, Washington

A magnitude 1.9 earthquake struck 16 km WNW of Packwood, Washington on Sun, Jul 31, 1977, 6:08 PM PDT (01:08 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.4 6 km SSE of Bucoda, Washington. This one was a foreshock.

Morton 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
1977-08-01 01:08:09 UTC
Depth
-0.3 km (-0.2 mi), shallow
Epicenter
46.650° N, 121.876° 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, 1.0 km in depth
Depth from
From location
Station coverage gap
182°, poorly surrounded by stations
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: 19 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 1.933 km NE of Amboy, Washington · 17945 days ago · 1 km deep · 60 km away
  2. 1.55 km SE of Mineral, Washington · 17943 days ago · 19 km deep · 20 km away
  3. 1.52 km NNE of Bonney Lake, Washington · 17940 days ago · 12 km deep · 65 km away
  4. 1.713 km SSW of South Cle Elum, Washington · 17928 days ago · 9 km deep · 81 km away
  5. 1.917 km SE of Carbonado, Washington · 17925 days ago · 9 km deep · 35 km away
  6. 1.515 km NNE of Ashford, Washington · 17925 days ago · 15 km deep · 26 km away
  7. 1.939 km SE of Morton, Washington · 17923 days ago · -1 km deep · 40 km away
  8. 1.52 km NW of Snoqualmie, Washington · 17923 days ago · 25 km deep · 100 km away
  9. 1.811 km W of Packwood, Washington · 17922 days ago · -1 km deep · 5 km away
  10. 1.613 km SSW of South Cle Elum, Washington · 17915 days ago · 1 km deep · 82 km away
  11. 1.613 km NNE of Cliffdell, Washington · 17915 days ago · 7 km deep · 81 km away
  12. 1.74 km NW of Federal Way, Washington · 17914 days ago · 22 km deep · 86 km away
  13. 3.46 km SSE of Bucoda, Washington · 17912 days ago · 6 km deep · 73 km away
  14. 2.115 km NNE of Ashford, Washington · 17910 days ago · -1 km deep · 26 km away
  15. 2.06 km N of Mossyrock, Washington · 17902 days ago · 23 km deep · 46 km away
  16. 2.18 km NNE of Mossyrock, Washington · 17901 days ago · 20 km deep · 44 km away
  17. 1.74 km NE of North Bend, Washington · 17898 days ago · -1 km deep · 97 km away
  18. 1.63 km NE of Bonney Lake, Washington · 17897 days ago · 15 km deep · 65 km away
  19. 1.915 km NNE of Ashford, Washington · 17894 days ago · 4 km deep · 27 km away

Before

  1. 2.013 km ENE of Ashford, Washington · 17951 days ago · 2 km deep · 19 km away
  2. 1.80 km WNW of Normandy Park, Washington · 17957 days ago · 16 km deep · 94 km away
  3. 2.011 km W of Tieton, Washington · 17958 days ago · 12 km deep · 75 km away
  4. 2.02 km W of Artondale, Washington · 17959 days ago · 20 km deep · 93 km away
  5. 1.73 km WSW of Rosedale, Washington · 17961 days ago · 19 km deep · 97 km away
  6. 2.34 km SW of Orting, Washington · 17963 days ago · 0 km deep · 54 km away
  7. 1.513 km NW of Cliffdell, Washington · 17964 days ago · 18 km deep · 67 km away
  8. 1.75 km SSW of Cowiche, Washington · 17966 days ago · 16 km deep · 87 km away
  9. 2.717 km S of Mossyrock, Washington · 17968 days ago · 14 km deep · 56 km away
  10. 1.711 km SE of Carbonado, Washington · 17968 days ago · 5 km deep · 39 km away
  11. 2.413 km SSW of South Cle Elum, Washington · 17968 days ago · 5 km deep · 82 km away
  12. 2.213 km SSW of South Cle Elum, Washington · 17968 days ago · 4 km deep · 81 km away
  13. 2.012 km S of South Cle Elum, Washington · 17969 days ago · -1 km deep · 84 km away
  14. 3.910 km SSW of South Cle Elum, Washington · 17969 days ago · 2 km deep · 84 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10844263. Read Tue, Sep 22, 2026, 9:30 PM UTC.