M2.6 earthquake 4 km NNE of Tracyton, Washington
A magnitude 2.6 earthquake struck 4 km NNE of Tracyton, Washington on Tue, Dec 9, 1986, 2:06 AM PST (10:06 UTC), 18 km (11 mi) below the surface.
A larger quake followed: M2.7 5 km WNW of Edmonds, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.6 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1986-12-09 10:06:20 UTC
- Depth
- 18.0 km (11.2 mi), shallow
- Epicenter
- 47.648° N, 122.627° W
- Region
- Washington
- 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 0.5 km horizontally, 0.9 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 33°
- Stations used
- 43
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 4 in the 30 days before it.
After
- 2.42 km W of Union Hill-Novelty Hill, Washington · 14539 days ago · 18 km deep · 42 km away
- 1.6Puget Sound region, Washington · 14539 days ago · 17 km deep · 42 km away
- 2.01 km W of Kingsgate, Washington · 14526 days ago · 15 km deep · 33 km away
- 2.49 km W of Gorst, Washington · 14519 days ago · 18 km deep · 19 km away
- 1.80 km NW of Issaquah, Washington · 14517 days ago · 16 km deep · 46 km away
- 2.02 km SE of Woods Creek, Washington · 14511 days ago · 18 km deep · 61 km away
- 2.75 km WNW of Edmonds, Washington · 14506 days ago · 19 km deep · 24 km away
- 1.64 km WNW of Edmonds, Washington · 14506 days ago · 18 km deep · 24 km away
- 1.50 km ENE of Esperance, Washington · 14501 days ago · 22 km deep · 26 km away
Before
- 1.91 km E of Kirkland, Washington · 14545 days ago · 22 km deep · 33 km away
- 1.623 km NNE of Aberdeen Gardens, Washington · 14552 days ago · 1 km deep · 88 km away
- 1.81 km WNW of Wilderness Rim, Washington · 14553 days ago · 20 km deep · 67 km away
- 1.73 km WSW of Wilderness Rim, Washington · 14556 days ago · 18 km deep · 65 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10215048. Read Sat, Oct 3, 2026, 4:37 PM UTC.