Washington earthquakes

M1.6 earthquake 11 km S of Ashford, WA

A magnitude 1.6 earthquake struck 11 km S of Ashford, WA on Thu, Sep 9, 1976, 1:00 PM PDT (20:00 UTC), 38 km (23 mi) below the surface.

A larger quake followed: M1.7 16 km NNE of Mossyrock, 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
1.6 (md), micro
Local time
UTC
1976-09-09 20:00:31 UTC
Depth
37.8 km (23.5 mi), shallow
Epicenter
46.661° N, 122.053° 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 0.1 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
151°
Stations used
4

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 13 in the 30 days before it.

After

  1. 1.716 km NNE of Mossyrock, Washington · 18269 days ago · 12 km deep · 29 km away
  2. 2.212 km N of Ashford, Washington · 18259 days ago · 3 km deep · 23 km away
  3. 1.6Washington · 18251 days ago · 13 km deep · 88 km away
  4. 2.417 km NE of Ashford, Washington · 18250 days ago · 14 km deep · 28 km away
  5. 1.73 km NW of Snoqualmie Pass, Washington · 18246 days ago · 0 km deep · 96 km away
  6. 2.014 km NNW of Morton, Washington · 18244 days ago · 11 km deep · 23 km away
  7. 2.05 km NNW of Onalaska, Washington · 18242 days ago · 42 km deep · 53 km away
  8. 4.014 km NNW of Morton, Washington · 18240 days ago · 16 km deep · 24 km away
  9. 2.113 km WSW of Mineral, Washington · 18240 days ago · 16 km deep · 23 km away
  10. 2.42 km NE of Maple Valley, Washington · 18236 days ago · 13 km deep · 83 km away
  11. 1.97 km ENE of Hobart, Washington · 18235 days ago · 22 km deep · 89 km away
  12. 1.91 km W of Hobart, Washington · 18234 days ago · 18 km deep · 84 km away
  13. 1.84 km S of Orting, Washington · 18234 days ago · -1 km deep · 45 km away
  14. 1.96 km N of Packwood, Washington · 18231 days ago · 1 km deep · 28 km away
  15. 2.211 km S of Greenwater, Washington · 18229 days ago · 4 km deep · 53 km away
  16. 1.86 km SSW of Southworth, Washington · 18218 days ago · 23 km deep · 97 km away

Before

  1. 1.730 km N of Amboy, Washington · 18276 days ago · 1 km deep · 62 km away
  2. 1.94 km W of Packwood, Washington · 18278 days ago · 5 km deep · 26 km away
  3. 2.313 km E of Tanner, Washington · 18281 days ago · 15 km deep · 98 km away
  4. 1.515 km SW of Alder, Washington · 18281 days ago · 9 km deep · 29 km away
  5. 1.628 km NW of Trout Lake, Washington · 18282 days ago · 9 km deep · 57 km away
  6. 1.65 km SSW of Fall City, Washington · 18284 days ago · 25 km deep · 97 km away
  7. 1.85 km NNE of North Bend, Washington · 18284 days ago · 13 km deep · 100 km away
  8. 1.53 km WSW of Issaquah, Washington · 18290 days ago · 11 km deep · 95 km away
  9. 1.61 km ENE of Riverton, Washington · 18295 days ago · 24 km deep · 94 km away
  10. 1.60 km ESE of Boulevard Park, Washington · 18295 days ago · 32 km deep · 94 km away
  11. 2.221 km SSE of Mossyrock, Washington · 18297 days ago · 3 km deep · 42 km away
  12. 1.510 km WNW of Packwood, Washington · 18297 days ago · -1 km deep · 19 km away
  13. 2.031 km S of Morton, Washington · 18297 days ago · 18 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10842198. Read Tue, Sep 22, 2026, 10:30 PM UTC.