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M0.2 earthquake 13 km NNW of Bangor Trident Base, Washington, United States

A magnitude 0.2 earthquake struck 13 km NNW of Bangor Trident Base, Washington, United States at 05:37 local time (12:37 UTC) on 9 Oct 2026, at a depth of 21 km, according to USGS.

Data: USGS · updated 2026-10-09 17:31 UTC · reviewed

Magnitude
0.2micro
local magnitude (Richter) (ml)
Depth
20.6 km
Status
Reviewed
Origin time
2026-10-09 12:37:08 UTC
Local: 9 Oct 2026, 05:37:08 (America/Los Angeles)
Epicentre
47.824° N, 122.784° W

Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
Bangor Trident BaseWashington, United States · pop. 6,05413 kmINot felt
PoulsboWashington, United States · pop. 10,04114 kmINot felt
Bainbridge IslandWashington, United States · pop. 23,84029 kmINot felt
EdmondsWashington, United States · pop. 41,37530 kmINot felt
BremertonWashington, United States · pop. 39,52030 kmINot felt
ShorelineWashington, United States · pop. 55,43934 kmINot felt
SeattleWashington, United States · pop. 780,99541 kmINot felt
VictoriaBritish Columbia, Canada · pop. 289,62580 kmINot felt

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses USGS · UW, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · UWheadlinePacific Northwest Seismic Network via U.S. Geological Survey0.2 ml20.6 km47.82° N, 122.78° W–Reviewed

How big was it?

Usually not felt. Recorded by nearby seismometers; thousands occur worldwide every day.

It released roughly the energy of 29 g of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 21 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.0 releases about 16× the energy of M0.2, and its waves are about 6.5× taller on a seismogram. Energy: 477 g of TNT vs 29 g of TNT.

Each square is the energy of one M0.2. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

20 later earthquakes within 30 km; the largest was M1.3 15 days ago. 7 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M0.2

20 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
41.410.714
43.610.813
46.201.113
85.380.718
98.010.523
111.371.122
111.920.922
127.230.713
196.480.620
218.630.822
263.540.421
294.531.30
334.800.422
400.491.15
487.071.30
585.950.420
589.871.120
645.560.921
668.050.923
706.931.318
  1. 1.320 km NNW of Poulsbo, Washington, United States10-29 19:41
  2. 1.38 km WSW of Tracyton, Washington, United States11-07 23:32
  3. 1.317 km NNW of Poulsbo, Washington, United States10-21 19:08
  4. 1.17 km SW of Silverdale, Washington, United States10-11 10:48
  5. 1.17 km NNW of Bangor Trident Base, Washington, United States10-14 03:59
  6. 1.122 km NNW of Bangor Trident Base, Washington, United States11-03 02:29
  7. 1.113 km W of Bangor Trident Base, Washington, United States10-26 05:06
  8. 0.96 km NNW of Bangor Trident Base, Washington, United States10-14 04:32
  9. 0.9Near Tracyton, Washington, United States11-06 08:39
  10. 0.912 km NW of Bangor Trident Base, Washington, United States11-05 10:10
  11. 0.85 km WSW of Tracyton, Washington, United States10-11 08:13
  12. 0.811 km WNW of Edmonds, Washington, United States10-18 15:15
  13. 0.76 km WSW of Tracyton, Washington, United States10-11 06:01
  14. 0.74 km W of Tracyton, Washington, United States10-14 19:50
  15. 0.711 km WNW of Bangor Trident Base, Washington, United States10-13 01:59
  16. 0.611 km NW of Bangor Trident Base, Washington, United States10-17 17:05
  17. 0.514 km NW of Bangor Trident Base, Washington, United States10-13 14:37
  18. 0.415 km WNW of Bangor Trident Base, Washington, United States10-20 12:09
  19. 0.413 km NW of Bangor Trident Base, Washington, United States10-23 11:25
  20. 0.411 km WNW of Bangor Trident Base, Washington, United States11-02 22:34

Did you feel it?

Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.

Reports close 14 days after an earthquake.

Reports on SeismoAtlas

No reports yet.

Event id uw714118271. First recorded here 9 Oct 2026, 17:32:45 UTC. Solutions: USGS · UW (usgs:uw714118271). Cite as: SeismoAtlas, “M0.2 earthquake 13 km NNW of Bangor Trident Base, Washington, United States”, https://seismoatlas.com/earthquake/uw714118271-m0-2-earthquake-13-km-nnw-of-bangor-trident-base-washington-united-states, data from USGS.

JSON: /api/v1/events/uw714118271. SeismoAtlas is not an official warning service.