Washington earthquakes

M1.6 earthquake 1 km W of Wauna, Washington

A magnitude 1.6 earthquake struck 1 km W of Wauna, Washington on Mon, May 9, 1988, 11:07 AM PDT (18:07 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M3.1 2 km NE of Lake Marcel-Stillwater, Washington. This one was a foreshock.

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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
1988-05-09 18:07:50 UTC
Depth
23.9 km (14.9 mi), shallow
Epicenter
47.381° N, 122.666° 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 0.3 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
53°
Stations used
21

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 4 in the 30 days before it.

After

  1. 1.519 km SSE of Carbonado, Washington · 14022 days ago · 11 km deep · 75 km away
  2. 2.52 km WSW of Artondale, Washington · 14008 days ago · 21 km deep · 10 km away
  3. 1.511 km S of Greenwater, Washington · 14008 days ago · 0 km deep · 85 km away
  4. 2.29 km S of Sultan, Washington · 14006 days ago · 13 km deep · 76 km away
  5. 1.81 km WSW of Riverton, Washington · 14005 days ago · 25 km deep · 29 km away
  6. 1.52 km S of Issaquah, Washington · 14000 days ago · -1 km deep · 50 km away
  7. 2.23 km ESE of Belfair, Washington · 13997 days ago · 21 km deep · 11 km away
  8. 1.63 km NNE of Union Hill-Novelty Hill, WA · 13996 days ago · 3 km deep · 61 km away
  9. 1.92 km WNW of Maple Valley, Washington · 13990 days ago · 18 km deep · 44 km away
  10. 3.12 km NE of Lake Marcel-Stillwater, Washington · 13988 days ago · 7 km deep · 68 km away
  11. 1.712 km ESE of Ashford, Washington · 13986 days ago · 5 km deep · 94 km away
  12. 2.21 km SW of Lake Marcel-Stillwater, Washington · 13984 days ago · -1 km deep · 64 km away
  13. 1.51 km E of Clyde Hill, Washington · 13982 days ago · 24 km deep · 45 km away
  14. 1.72 km W of Tanner, Washington · 13970 days ago · 17 km deep · 68 km away
  15. 2.14 km NNE of Key Center, Washington · 13970 days ago · 23 km deep · 4 km away
  16. 2.14 km WSW of Wilderness Rim, Washington · 13968 days ago · 18 km deep · 63 km away

Before

  1. 1.524 km ENE of Ashford, Washington · 14032 days ago · -1 km deep · 91 km away
  2. 1.73 km ENE of Granite Falls, Washington · 14039 days ago · -1 km deep · 97 km away
  3. 1.84 km NE of Tanner, Washington · 14041 days ago · 12 km deep · 74 km away
  4. 1.65 km SW of Inglewood-Finn Hill, Washington · 14047 days ago · 18 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10230338. Read Sat, Oct 3, 2026, 9:08 AM UTC.