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M1.8 earthquake 149 km NNW of Meadow Lakes, Alaska, United States

A magnitude 1.8 earthquake struck 149 km NNW of Meadow Lakes, Alaska, United States at 03:51 local time (11:51 UTC) on 23 Oct 2026, at a depth of 92 km, according to USGS.

revised from M1.9

Data: USGS · updated 2026-10-27 23:04 UTC · reviewed

Magnitude
1.8micro
local magnitude (Richter) (ml)
revised from 1.9
Depth
92.2 km
Status
Reviewed
Origin time
2026-10-23 11:51:49 UTC
Local: 23 Oct 2026, 03:51:49 (America/Anchorage)
Epicentre
62.869° N, 150.665° 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
Meadow LakesAlaska, United States · pop. 7,570149 kmINot felt
AnchorageAlaska, United States · pop. 289,600188 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 · AK, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · AKheadlineAlaska Earthquake Center via U.S. Geological Survey1.8 mlwas 1.992.2 km62.87° N, 150.66° W–Reviewed · 1 revision

How big was it?

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

It released roughly the energy of 8 kg 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 92 km this was a intermediate-depth earthquake, which spreads shaking over a wider area but less intensely.

M1.8 releases about 16× the energy of M1.0, and its waves are about 6.3× taller on a seismogram. Energy: 8 kg 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

25 later earthquakes within 30 km; the largest was M3.5 3 days ago. 14 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.8

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
17.972.4106
29.382.1127
40.952.387
69.721.9134
74.111.9114
83.021.79
89.491.6107
110.492.094
139.012.396
146.362.2101
176.382.7128
184.862.2117
235.462.387
239.272.086
254.082.1124
300.982.099
316.342.192
355.272.6134
380.332.1122
383.272.692
387.961.7107
392.901.796
402.272.2104
404.613.5112
481.812.388
  1. 3.5Petersville, Alaska11-09 08:28
  2. 2.7Petersville, Alaska10-30 20:14
  3. 2.6Denali National Park, Alaska11-07 07:07
  4. 2.6Petersville, Alaska11-08 11:08
  5. 2.4Petersville, Alaska10-24 05:50
  6. 2.3149 km NNW of Meadow Lakes, Alaska, United States10-25 04:49
  7. 2.3Petersville, Alaska10-29 06:52
  8. 2.3145 km NNW of Meadow Lakes, Alaska, United States11-02 07:19
  9. 2.3Petersville, Alaska11-12 13:40
  10. 2.2Petersville, Alaska10-29 14:13
  11. 2.2Denali National Park, Alaska10-31 04:43
  12. 2.2Petersville, Alaska11-09 06:08
  13. 2.1Petersville, Alaska10-24 17:14
  14. 2.1Petersville, Alaska11-03 01:56
  15. 2.1Petersville, Alaska11-05 16:12
  16. 2.1Denali National Park, Alaska11-08 08:11
  17. 2.0147 km NNW of Meadow Lakes, Alaska, United States10-28 02:21
  18. 2.0Petersville, Alaska11-02 11:07
  19. 2.0Petersville, Alaska11-05 00:50
  20. 1.9Petersville, Alaska10-26 09:34
  21. 1.9Petersville, Alaska10-26 13:58
  22. 1.7Petersville, Alaska10-26 22:52
  23. 1.7Petersville, Alaska11-08 15:49
  24. 1.7Petersville, Alaska11-08 20:45
  25. 1.6Petersville, Alaska10-27 05:21

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 aka2026uzuewe. First recorded here 23 Oct 2026, 17:53:22 UTC. Solutions: USGS · AK (usgs:aka2026uzuewe). Cite as: SeismoAtlas, “M1.8 earthquake 149 km NNW of Meadow Lakes, Alaska, United States”, https://seismoatlas.com/earthquake/aka2026uzuewe-m1-8-earthquake-149-km-nnw-of-meadow-lakes-alaska-united-states, data from USGS.

JSON: /api/v1/events/aka2026uzuewe. SeismoAtlas is not an official warning service.