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M2.0 earthquake 103 km WNW of Homer, Alaska, United States

A magnitude 2.0 earthquake struck 103 km WNW of Homer, Alaska, United States at 10:17 local time (18:17 UTC) on 30 Sept 2026, at a depth of 154 km, according to USGS. The solution is preliminary and may be revised.

revised from M1.8

Data: USGS · updated 2026-09-30 18:20 UTC · automatic solution

Magnitude
2.0micro
local magnitude (Richter) (ml)
revised from 1.8
Depth
153.5 km
Status
Automatic
Origin time
2026-09-30 18:17:29 UTC
Local: 30 Sept 2026, 10:17:29 (America/Anchorage)
Epicentre
59.941° N, 153.289° W

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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. 5,515103 kmINot felt
KalifornskyAlaska, United States · pop. 7,850123 kmINot felt
AnchorageAlaska, United States · pop. 289,600233 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 Survey2.0 mlwas 1.8153.5 km59.94° N, 153.29° W–Automatic · 1 revision

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How big was it?

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

It released roughly the energy of 15 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 154 km this was a intermediate-depth earthquake, which spreads shaking over a wider area but less intensely.

M2.0 releases about 32× the energy of M1.0, and its waves are about 10× taller on a seismogram. Energy: 15 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

72 later earthquakes within 30 km; the largest was M2.6 1 day ago. 59 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.0

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
2.56-1.2-2
4.210.85
6.30-0.30
6.74-0.61
7.510.833
7.56-0.60
7.882.2129
11.861.599
14.20-0.50
17.21-0.8-1
17.600.626
22.40-1.01
25.12-0.81
25.81-0.72
29.010.433
29.071.046
29.971.9145
30.35-0.92
30.93-0.71
33.54-1.11
36.12-1.20
37.50-0.4-2
38.26-0.82
39.69-1.20
40.35-1.11
40.51-1.02
40.740.35
41.79-0.96
46.83-0.5-3
49.99-0.72
51.40-1.1-2
51.47-0.91
51.62-0.25
51.65-0.50
52.70-1.0-1
53.63-0.80
54.44-0.51
55.09-0.30
57.170.75
57.88-0.83
60.850.55
61.251.5103
61.450.65
84.01-0.11
87.98-0.6-2
93.652.4133
94.12-0.9-2
95.57-0.81
107.101.9107
107.68-0.91
110.241.2118
110.30-0.1-1
110.550.45
113.882.6125
114.500.75
115.000.55
117.731.8139
117.960.35
118.840.21
119.140.30
126.40-1.33
126.450.45
129.92-0.85
135.11-0.80
135.80-0.62
137.24-0.91
138.53-0.91
138.81-1.20
139.07-0.92
144.040.87
144.901.097
150.562.0172
  1. 2.695 km NW of Homer, Alaska, United States10-05 12:10
  2. 2.499 km WNW of Homer, Alaska, United States10-04 15:56
  3. 2.299 km WNW of Homer, Alaska, United States10-01 02:10
  4. 2.0113 km WNW of Homer, Alaska, United States10-07 00:51
  5. 1.9100 km WNW of Homer, Alaska, United States10-02 00:15
  6. 1.992 km W of Homer, Alaska, United States10-05 05:23
  7. 1.8100 km WNW of Homer, Alaska, United States10-05 16:01
  8. 1.577 km W of Homer, Alaska, United States10-01 06:08
  9. 1.585 km WNW of Homer, Alaska, United States10-03 07:32
  10. 1.292 km WNW of Homer, Alaska, United States10-05 08:32
  11. 1.093 km WNW of Homer, Alaska, United States10-01 23:21
  12. 1.077 km WNW of Homer, Alaska, United States10-06 19:11
  13. 0.8100 km WNW of Homer, Alaska, United States09-30 22:30
  14. 0.8119 km WNW of Homer, Alaska, United States10-01 01:48
  15. 0.8101 km WNW of Homer, Alaska, United States10-06 18:19
  16. 0.796 km WNW of Homer, Alaska, United States10-03 03:27
  17. 0.792 km WNW of Homer, Alaska, United States10-05 12:47
  18. 0.6108 km WNW of Homer, Alaska, United States10-01 11:53
  19. 0.696 km WNW of Homer, Alaska, United States10-03 07:44
  20. 0.594 km WNW of Homer, Alaska, United States10-03 07:08
  21. 0.598 km WNW of Homer, Alaska, United States10-05 13:17
  22. 0.489 km WNW of Homer, Alaska, United States10-01 23:18
  23. 0.497 km WNW of Homer, Alaska, United States10-05 08:50
  24. 0.498 km WNW of Homer, Alaska, United States10-06 00:44
  25. 0.396 km WNW of Homer, Alaska, United States10-02 11:01

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Reports on SeismoAtlas

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Event id aka2026tjuoem. First recorded here 30 Sept 2026, 18:20:52 UTC. Solutions: USGS · AK (usgs:aka2026tjuoem). Cite as: SeismoAtlas, “M2.0 earthquake 103 km WNW of Homer, Alaska, United States”, https://seismoatlas.com/earthquake/aka2026tjuoem-m2-0-earthquake-103-km-wnw-of-homer-alaska-united-states, data from USGS.

JSON: /api/v1/events/aka2026tjuoem. SeismoAtlas is not an official warning service.