Washington earthquakes

M1.6 earthquake 10 km NNW of Onalaska, Washington

A magnitude 1.6 earthquake struck 10 km NNW of Onalaska, Washington on Fri, Aug 2, 1974, 5:53 PM PDT (00:53 UTC), 34 km (21 mi) below the surface.

A larger quake followed: M2.8 2 km E of Dash Point, Washington. This one was a foreshock.

Onalaska 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, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1974-08-03 00:53:37 UTC
Depth
33.6 km (20.9 mi), shallow
Epicenter
46.670° N, 122.751° 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 1.7 km horizontally, 3.3 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
169°
Stations used
6

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 4 in the 30 days before it.

After

  1. 2.34 km SE of Mossyrock, Washington · 19054 days ago · -1 km deep · 30 km away
  2. 2.06 km ENE of Ashford, Washington · 19053 days ago · 6 km deep · 62 km away
  3. 1.73 km SSW of Vashon, Washington · 19048 days ago · 19 km deep · 86 km away
  4. 2.25 km NNE of Vaughn, Washington · 19046 days ago · 21 km deep · 81 km away
  5. 2.07 km NE of Ashford, Washington · 19045 days ago · 5 km deep · 62 km away
  6. 2.113 km ESE of Ashford, Washington · 19043 days ago · 1 km deep · 68 km away
  7. 2.82 km E of Dash Point, Washington · 19041 days ago · 6 km deep · 77 km away
  8. 1.519 km WNW of Hoodsport, Washington · 19028 days ago · -1 km deep · 99 km away
  9. 2.07 km SW of Morton, Washington · 19026 days ago · 5 km deep · 35 km away
  10. 2.022 km ENE of Ashford, Washington · 19021 days ago · -1 km deep · 77 km away
  11. 2.612 km SE of Ashford, Washington · 19013 days ago · 6 km deep · 64 km away
  12. 1.92 km NNW of Maple Valley, Washington · 19007 days ago · 3 km deep · 98 km away
  13. 1.911 km SE of Ashford, Washington · 19007 days ago · 2 km deep · 64 km away
  14. 2.47 km N of Lewisville, Washington · 19003 days ago · 2 km deep · 90 km away

Before

  1. 2.031 km NE of Amboy, Washington · 19057 days ago · 17 km deep · 73 km away
  2. 2.04 km SE of La Center, Washington · 19059 days ago · 3 km deep · 93 km away
  3. 2.80 km WNW of Cherry Grove, Washington · 19059 days ago · 12 km deep · 98 km away
  4. 2.32 km SW of Rosedale, Washington · 19079 days ago · 20 km deep · 72 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10840373. Read Sat, Oct 3, 2026, 8:06 AM UTC.