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M0.5 earthquake 44 km SE of Orting, Washington, United States

A magnitude 0.5 earthquake struck 44 km SE of Orting, Washington, United States at 15:07 local time (22:07 UTC) on 26 Oct 2026, at a depth of 10 km, according to USGS.

Data: USGS · updated 2026-10-27 19:37 UTC · reviewed

Magnitude
0.5micro
local magnitude (Richter) (ml)
Depth
10.1 km
Status
Reviewed
Origin time
2026-10-26 22:07:46 UTC
Local: 26 Oct 2026, 15:07:46 (America/Los Angeles)
Epicentre
46.792° N, 121.844° 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
OrtingWashington, United States · pop. 7,44644 kmINot felt
GrahamWashington, United States · pop. 23,49144 kmINot felt
South HillWashington, United States · pop. 52,43150 kmINot felt
PuyallupWashington, United States · pop. 39,65956 kmINot felt
SpanawayWashington, United States · pop. 27,22756 kmINot felt
SeattleWashington, United States · pop. 780,99598 kmINot felt
PortlandOregon, United States · pop. 652,503155 kmINot felt
VictoriaBritish Columbia, Canada · pop. 289,625215 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 Survey0.5 ml10.1 km46.79° N, 121.84° W–Reviewed

How big was it?

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

It released roughly the energy of 76 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 10 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 6.2× the energy of M0.5, and its waves are about 3.4× taller on a seismogram. Energy: 477 g of TNT vs 76 g of TNT.

Each square is the energy of one M0.5. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

26 later earthquakes within 30 km; the largest was M1.9 12 days ago. 15 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M0.5

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
13.520.2-2
52.090.86
74.170.96
91.230.83
91.411.64
100.540.410
112.031.99
166.370.23
206.200.07
207.930.512
209.440.85
215.120.65
217.550.81
221.830.12
231.860.74
285.831.86
291.001.66
302.811.01
302.831.41
332.771.47
338.780.74
339.660.6-1
341.700.86
356.440.22
399.081.04
409.200.811
  1. 1.939 km SE of Orting, Washington, United States10-31 14:09
  2. 1.840 km SSE of Graham, Washington, United States11-07 19:57
  3. 1.639 km SSE of Graham, Washington, United States10-30 17:32
  4. 1.639 km SSE of Graham, Washington, United States11-08 01:07
  5. 1.442 km SSE of Enumclaw, Washington, United States11-08 12:57
  6. 1.465 km SE of Graham, Washington, United States11-09 18:54
  7. 1.040 km SSE of Graham, Washington, United States11-12 13:12
  8. 1.042 km SSE of Enumclaw, Washington, United States11-08 12:56
  9. 0.949 km SE of Graham, Washington, United States10-30 00:18
  10. 0.842 km SSE of Enumclaw, Washington, United States11-04 23:40
  11. 0.840 km SSE of Graham, Washington, United States11-10 03:50
  12. 0.864 km SE of Graham, Washington, United States11-12 23:19
  13. 0.839 km SSE of Graham, Washington, United States10-30 17:21
  14. 0.840 km SSE of Graham, Washington, United States10-29 02:13
  15. 0.852 km SSE of Graham, Washington, United States11-04 15:34
  16. 0.740 km SSE of Graham, Washington, United States11-05 13:59
  17. 0.739 km SSE of Graham, Washington, United States11-10 00:54
  18. 0.639 km SE of Orting, Washington, United States11-10 01:47
  19. 0.640 km SSE of Graham, Washington, United States11-04 21:15
  20. 0.524 km SE of Orting, Washington, United States11-04 14:03
  21. 0.432 km SE of Orting, Washington, United States10-31 02:40
  22. 0.245 km SSE of Enumclaw, Washington, United States10-27 11:38
  23. 0.249 km SE of Graham, Washington, United States11-02 20:30
  24. 0.245 km SSE of Orting, Washington, United States11-10 18:34
  25. 0.142 km SSE of Enumclaw, Washington, United States11-05 03:57

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 uw714128722. First recorded here 27 Oct 2026, 19:39:20 UTC. Solutions: USGS · UW (usgs:uw714128722). Cite as: SeismoAtlas, “M0.5 earthquake 44 km SE of Orting, Washington, United States”, https://seismoatlas.com/earthquake/uw714128722-m0-5-earthquake-44-km-se-of-orting-washington-united-states, data from USGS.

JSON: /api/v1/events/uw714128722. SeismoAtlas is not an official warning service.