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SeismoAtlas

M2.1 earthquake – Denali National Park, Alaska

A magnitude 2.1 earthquake struck in the Denali National Park, Alaska region at 06:43 local time (14:43 UTC) on 25 Oct 2026, at a depth of 132 km, according to USGS. The solution is preliminary and may be revised.

revised from M1.9

Data: USGS · updated 2026-10-25 14:46 UTC · automatic solution

Magnitude
2.1micro
local magnitude (Richter) (ml)
revised from 1.9
Depth
132.2 km
Status
Automatic
Origin time
2026-10-25 14:43:03 UTC
Local: 25 Oct 2026, 06:43:03 (America/Anchorage)
Epicentre
63.198° N, 150.813° 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
AnchorageAlaska, United States · pop. 289,600225 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.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · AKheadlineAlaska Earthquake Center via U.S. Geological Survey2.1 mlwas 1.9132.2 km63.20° N, 150.81° W–Automatic · 1 revision

How big was it?

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

It released roughly the energy of 21 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 132 km this was a intermediate-depth earthquake, which spreads shaking over a wider area but less intensely.

M2.1 releases about 32× the energy of M1.1, and its waves are about 10× taller on a seismogram. Energy: 21 kg of TNT vs 674 g of TNT.

Each square is the energy of one M1.1. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

28 later earthquakes within 30 km; the largest was M2.7 13 days ago. 11 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.1

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
8.341.55
13.961.8120
18.871.9134
23.251.9114
32.161.79
38.641.6107
39.212.04
57.881.9124
85.072.1109
95.512.2101
125.532.7128
134.012.2117
139.722.12
173.061.93
203.232.1124
210.932.3133
210.932.3135
217.931.9119
259.081.9121
304.412.6134
317.182.0139
321.491.82
329.152.2119
329.482.1120
337.111.7107
347.751.64
401.212.3122
430.182.2124
  1. 2.7Petersville, Alaska10-30 20:14
  2. 2.6Denali National Park, Alaska11-07 07:07
  3. 2.3Denali National Park, Alaska11-03 09:38
  4. 2.3Denali National Park, Alaska11-03 09:38
  5. 2.3Denali National Park, Alaska11-11 07:55
  6. 2.2Petersville, Alaska10-29 14:13
  7. 2.2Denali National Park, Alaska10-31 04:43
  8. 2.2Denali National Park, Alaska11-08 07:52
  9. 2.2Cantwell, Alaska11-12 12:53
  10. 2.1Cantwell, Alaska10-29 03:47
  11. 2.1Denali National Park, Alaska10-31 10:26
  12. 2.1Petersville, Alaska11-03 01:56
  13. 2.1Denali National Park, Alaska11-08 08:11
  14. 2.0Denali National Park, Alaska10-27 05:55
  15. 2.0Denali National Park, Alaska11-07 19:53
  16. 1.9Petersville, Alaska10-26 09:34
  17. 1.9Petersville, Alaska10-26 13:58
  18. 1.9Denali National Park, Alaska10-28 00:35
  19. 1.9Denali National Park, Alaska11-01 19:46
  20. 1.9Denali National Park, Alaska11-03 16:38
  21. 1.9Denali National Park, Alaska11-05 09:48
  22. 1.8Petersville, Alaska10-26 04:40
  23. 1.8Denali National Park, Alaska11-08 00:12
  24. 1.7Petersville, Alaska10-26 22:52
  25. 1.7Petersville, Alaska11-08 15:49

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 aka2026vdrymb. First recorded here 25 Oct 2026, 14:45:56 UTC. Solutions: USGS · AK (usgs:aka2026vdrymb). Cite as: SeismoAtlas, “M2.1 earthquake – Denali National Park, Alaska”, https://seismoatlas.com/earthquake/aka2026vdrymb-m2-1-earthquake-denali-national-park-alaska, data from USGS.

JSON: /api/v1/events/aka2026vdrymb. SeismoAtlas is not an official warning service.