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M2.6 earthquake 71 km W of Homer, Alaska, United States

A magnitude 2.6 earthquake struck 71 km W of Homer, Alaska, United States at 19:25 local time (03:25 UTC) on 19 Sept 2026, at a depth of 99 km, according to USGS.

Data: USGS · updated 2026-09-24 22:22 UTC · reviewed

Magnitude
2.6micro
local magnitude (Richter) (ml)
Depth
98.8 km
Status
Reviewed
Origin time
2026-09-20 03:25:28 UTC
Local: 19 Sept 2026, 19:25:28 (America/Anchorage)
Epicentre
59.713° N, 152.808° 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
HomerAlaska, United States · pop. 5,51571 kmINot felt
KalifornskyAlaska, United States · pop. 7,850115 kmINot felt
AnchorageAlaska, United States · pop. 289,600231 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 Survey2.6 ml98.8 km59.71° N, 152.81° W–Reviewed

How big was it?

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

It released roughly the energy of 120 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 99 km this was a intermediate-depth earthquake, which spreads shaking over a wider area but less intensely.

M2.6 releases about 32× the energy of M1.6, and its waves are about 10× taller on a seismogram. Energy: 120 kg of TNT vs 4 kg of TNT.

Each square is the energy of one M1.6. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

14 later earthquakes within 30 km; the largest was M3.6 4 h 29 min ago. 3 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.6

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
23.622.8102
25.712.691
42.992.4106
56.511.888
78.611.890
78.782.894
80.131.6108
84.741.487
86.222.8101
103.611.9135
156.282.4124
181.542.6128
186.012.288
205.313.687
  1. 3.657 km W of Homer, Alaska, United States09-28 16:44
  2. 2.888 km W of Homer, Alaska, United States09-21 03:02
  3. 2.869 km WNW of Homer, Alaska, United States09-23 10:12
  4. 2.876 km WNW of Homer, Alaska, United States09-23 17:38
  5. 2.667 km W of Homer, Alaska, United States09-21 05:08
  6. 2.687 km WNW of Homer, Alaska, United States09-27 16:58
  7. 2.474 km WNW of Homer, Alaska, United States09-21 22:25
  8. 2.485 km WNW of Homer, Alaska, United States09-26 15:42
  9. 2.264 km W of Homer, Alaska, United States09-27 21:26
  10. 1.9100 km W of Homer, Alaska, United States09-24 11:01
  11. 1.866 km WNW of Homer, Alaska, United States09-22 11:56
  12. 1.876 km WSW of Homer, Alaska, United States09-23 10:02
  13. 1.687 km W of Homer, Alaska, United States09-23 11:33
  14. 1.473 km WNW of Homer, Alaska, United States09-23 16:09

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Reports on SeismoAtlas

No reports yet.

Event id aka2026sqeovj. First recorded here 28 Sept 2026, 17:32:10 UTC. Solutions: USGS · AK (usgs:aka2026sqeovj). Cite as: SeismoAtlas, “M2.6 earthquake 71 km W of Homer, Alaska, United States”, https://seismoatlas.com/earthquake/aka2026sqeovj-m2-6-earthquake-71-km-w-of-homer-alaska-united-states, data from USGS.

JSON: /api/v1/events/aka2026sqeovj. SeismoAtlas is not an official warning service.