Washington earthquakes

M2.0 earthquake 6 km SSE of Vashon, Washington

A magnitude 2.0 earthquake struck 6 km SSE of Vashon, Washington on Sun, Nov 28, 1999, 11:47 PM PST (07:47 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M3.0 6 km W of Lofall, Washington. This one was a foreshock.

Vashon 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
2.0 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1999-11-29 07:47:28 UTC
Depth
17.7 km (11.0 mi), shallow
Epicenter
47.394° N, 122.435° 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
±0.04
Depth from
From location
Station coverage gap
52°
Stations used
40

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. 1.93 km ENE of Monroe North, Washington · 9800 days ago · 16 km deep · 67 km away
  2. 2.113 km W of Greenwater, Washington · 9797 days ago · 14 km deep · 53 km away
  3. 2.2Washington · 9784 days ago · 17 km deep · 44 km away
  4. 1.92 km NNE of Bonney Lake, Washington · 9782 days ago · 14 km deep · 30 km away
  5. 2.019 km NNE of Ashford, Washington · 9779 days ago · 12 km deep · 65 km away
  6. 1.614 km SSE of Carbonado, Washington · 9777 days ago · 12 km deep · 59 km away
  7. 1.83 km W of Freeland, Washington · 9773 days ago · 50 km deep · 69 km away
  8. 1.61 km NNW of Mirrormont, Washington · 9761 days ago · 21 km deep · 33 km away
  9. 1.53 km NE of East Renton Highlands, Washington · 9757 days ago · 12 km deep · 29 km away
  10. 1.53 km NE of East Renton Highlands, Washington · 9757 days ago · 12 km deep · 30 km away
  11. 3.06 km W of Lofall, Washington · 9757 days ago · 17 km deep · 52 km away
  12. 1.93 km ENE of Bonney Lake, Washington · 9754 days ago · 14 km deep · 31 km away
  13. 2.20 km NNE of Gorst, Washington · 9754 days ago · 7 km deep · 25 km away
  14. 1.82 km ENE of Gig Harbor, Washington · 9752 days ago · 48 km deep · 10 km away
  15. 2.122 km ENE of Ashford, Washington · 9745 days ago · -1 km deep · 79 km away
  16. 1.63 km W of Black Diamond, Washington · 9745 days ago · 11 km deep · 31 km away

Before

  1. 2.52 km SW of Monroe North, Washington · 9817 days ago · 19 km deep · 62 km away
  2. 1.63 km NE of Snoqualmie, Washington · 9826 days ago · 14 km deep · 51 km away
  3. 1.714 km NNE of Ashford, Washington · 9833 days ago · 9 km deep · 70 km away
  4. 1.77 km SSW of Morton, Washington · 9834 days ago · 18 km deep · 100 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10490558. Read Sat, Oct 3, 2026, 4:04 AM UTC.