Washington earthquakes

M1.9 earthquake 4 km W of Packwood, Washington

A magnitude 1.9 earthquake struck 4 km W of Packwood, Washington on Mon, Sep 6, 1976, 8:15 AM PDT (15:15 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.0 14 km NNW of Morton, 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, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1976-09-06 15:15:44 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
46.611° N, 121.726° 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 2.1 km horizontally, 2.5 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
213°, poorly surrounded by stations
Stations used
5

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 6 in the 30 days before it.

After

  1. 1.730 km N of Amboy, Washington · 18285 days ago · 1 km deep · 74 km away
  2. 1.611 km S of Ashford, WA · 18285 days ago · 38 km deep · 26 km away
  3. 1.716 km NNE of Mossyrock, Washington · 18279 days ago · 12 km deep · 55 km away
  4. 2.212 km N of Ashford, Washington · 18269 days ago · 3 km deep · 36 km away
  5. 1.6Washington · 18261 days ago · 13 km deep · 92 km away
  6. 2.417 km NE of Ashford, Washington · 18260 days ago · 14 km deep · 32 km away
  7. 1.73 km NW of Snoqualmie Pass, Washington · 18256 days ago · 0 km deep · 92 km away
  8. 2.014 km NNW of Morton, Washington · 18254 days ago · 11 km deep · 49 km away
  9. 2.05 km NNW of Onalaska, Washington · 18252 days ago · 42 km deep · 78 km away
  10. 4.014 km NNW of Morton, Washington · 18250 days ago · 16 km deep · 49 km away
  11. 2.113 km WSW of Mineral, Washington · 18250 days ago · 16 km deep · 49 km away
  12. 2.42 km NE of Maple Valley, Washington · 18246 days ago · 13 km deep · 92 km away
  13. 1.97 km ENE of Hobart, Washington · 18244 days ago · 22 km deep · 94 km away
  14. 1.91 km W of Hobart, Washington · 18244 days ago · 18 km deep · 92 km away
  15. 1.84 km S of Orting, Washington · 18244 days ago · -1 km deep · 62 km away
  16. 1.96 km N of Packwood, Washington · 18241 days ago · 1 km deep · 7 km away
  17. 2.211 km S of Greenwater, Washington · 18239 days ago · 4 km deep · 50 km away

Before

  1. 2.313 km E of Tanner, Washington · 18290 days ago · 15 km deep · 98 km away
  2. 1.515 km SW of Alder, Washington · 18291 days ago · 9 km deep · 54 km away
  3. 1.628 km NW of Trout Lake, Washington · 18292 days ago · 9 km deep · 47 km away
  4. 2.221 km SSE of Mossyrock, Washington · 18307 days ago · 3 km deep · 58 km away
  5. 1.510 km WNW of Packwood, Washington · 18307 days ago · -1 km deep · 6 km away
  6. 2.031 km S of Morton, Washington · 18307 days ago · 18 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10842178. Read Fri, Oct 2, 2026, 5:45 PM UTC.