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M1.1 earthquake 7 km NNW of Bangor Trident Base, Washington, United States

A magnitude 1.1 earthquake struck 7 km NNW of Bangor Trident Base, Washington, United States at 20:59 local time (03:59 UTC) on 13 Oct 2026, at a depth of 22 km, according to USGS.

Data: USGS · updated 2026-10-14 17:40 UTC · reviewed

Magnitude
1.1micro
local magnitude (Richter) (ml)
Depth
21.9 km
Status
Reviewed
Origin time
2026-10-14 03:59:18 UTC
Local: 13 Oct 2026, 20:59:18 (America/Los Angeles)
Epicentre
47.780° N, 122.753° 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. 6,0547 kmINot felt
PoulsboWashington, United States · pop. 10,0419 kmINot felt
Bainbridge IslandWashington, United States · pop. 23,84024 kmINot felt
BremertonWashington, United States · pop. 39,52025 kmINot felt
EdmondsWashington, United States · pop. 41,37528 kmINot felt
ShorelineWashington, United States · pop. 55,43931 kmINot felt
SeattleWashington, United States · pop. 780,99537 kmINot felt
VictoriaBritish Columbia, Canada · pop. 289,62586 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 Survey1.1 ml21.9 km47.78° N, 122.75° W–Reviewed

How big was it?

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

It released roughly the energy of 674 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 22 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.1 releases about 1.4× the energy of M1.0, and its waves are about 1.3× taller on a seismogram. Energy: 674 g of TNT vs 477 g of TNT.

Each square is the energy of one M1.0. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

19 later earthquakes within 30 km; the largest was M1.8 1 day ago. 6 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.1

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.550.922
15.860.713
42.850.619
85.110.620
107.260.822
152.170.421
173.641.229
183.161.30
223.430.422
289.121.15
331.981.518
375.701.30
474.580.420
478.501.120
534.190.921
556.680.923
595.561.318
635.780.522
712.421.88
  1. 1.816 km NNW of Poulsbo, Washington, United States11-12 20:24
  2. 1.513 km W of Port Orchard, Washington, United States10-27 23:58
  3. 1.320 km NNW of Poulsbo, Washington, United States10-29 19:41
  4. 1.38 km WSW of Tracyton, Washington, United States11-07 23:32
  5. 1.317 km NNW of Poulsbo, Washington, United States10-21 19:08
  6. 1.2Near Edmonds, Washington, United States10-21 09:37
  7. 1.122 km NNW of Bangor Trident Base, Washington, United States11-03 02:29
  8. 1.113 km W of Bangor Trident Base, Washington, United States10-26 05:06
  9. 0.96 km NNW of Bangor Trident Base, Washington, United States10-14 04:32
  10. 0.9Near Tracyton, Washington, United States11-06 08:39
  11. 0.912 km NW of Bangor Trident Base, Washington, United States11-05 10:10
  12. 0.811 km WNW of Edmonds, Washington, United States10-18 15:15
  13. 0.74 km W of Tracyton, Washington, United States10-14 19:50
  14. 0.64 km SSW of Bainbridge Island, Washington, United States10-15 22:50
  15. 0.611 km NW of Bangor Trident Base, Washington, United States10-17 17:05
  16. 0.511 km W of Port Orchard, Washington, United States11-09 15:46
  17. 0.415 km WNW of Bangor Trident Base, Washington, United States10-20 12:09
  18. 0.413 km NW of Bangor Trident Base, Washington, United States10-23 11:25
  19. 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 uw714119512. First recorded here 14 Oct 2026, 17:41:04 UTC. Solutions: USGS · UW (usgs:uw714119512). Cite as: SeismoAtlas, “M1.1 earthquake 7 km NNW of Bangor Trident Base, Washington, United States”, https://seismoatlas.com/earthquake/uw714119512-m1-1-earthquake-7-km-nnw-of-bangor-trident-base-washington-united-states, data from USGS.

JSON: /api/v1/events/uw714119512. SeismoAtlas is not an official warning service.