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M1.0 earthquake 93 km WNW of Homer, Alaska, United States

A magnitude 1.0 earthquake struck 93 km WNW of Homer, Alaska, United States at 15:21 local time (23:21 UTC) on 1 Oct 2026, at a depth of 46 km, according to USGS. The solution is preliminary and may be revised.

Data: USGS · updated 2026-10-01 23:22 UTC · automatic solution

Magnitude
1.0micro
local magnitude (Richter) (ml)
Depth
45.7 km
Status
Automatic
Origin time
2026-10-01 23:21:51 UTC
Local: 1 Oct 2026, 15:21:51 (America/Anchorage)
Epicentre
59.979° N, 153.062° 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. 5,51593 kmINot felt
KalifornskyAlaska, United States · pop. 7,850110 kmINot felt
AnchorageAlaska, United States · pop. 289,600221 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 Survey1.0 ml45.7 km59.98° N, 153.06° W–Automatic

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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 477 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 46 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

The same size.

Each square is the energy of one M1.0. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

59 later earthquakes within 30 km; the largest was M2.6 1 day ago. 64 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.0

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.901.9145
1.28-0.92
1.86-0.71
4.47-1.11
7.05-1.20
8.43-0.4-2
9.18-0.82
10.62-1.20
11.27-1.11
11.44-1.02
11.670.35
12.71-0.96
17.76-0.5-3
20.92-0.72
22.32-1.1-2
22.40-0.91
22.55-0.25
22.58-0.50
23.62-1.0-1
24.56-0.80
25.37-0.51
26.01-0.30
28.090.75
28.81-0.83
31.780.55
32.181.5103
32.380.65
33.330.896
50.492.2128
54.94-0.11
58.90-0.6-2
64.582.4133
65.05-0.9-2
66.50-0.81
78.60-0.91
81.171.2118
81.23-0.1-1
81.480.45
84.812.6125
85.430.75
85.930.55
88.661.8139
88.890.35
89.770.21
90.070.30
97.33-1.33
97.370.45
100.85-0.85
106.04-0.80
106.73-0.62
108.17-0.91
109.45-0.91
109.74-1.20
110.00-0.92
112.70-1.2-1
113.20-1.1-2
114.970.87
115.831.097
121.492.0172
  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. 2.2101 km WSW of Kalifornsky, Alaska, United States10-04 01:51
  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. 1.8100 km WNW of Homer, Alaska, United States10-05 16:01
  7. 1.585 km WNW of Homer, Alaska, United States10-03 07:32
  8. 1.292 km WNW of Homer, Alaska, United States10-05 08:32
  9. 1.077 km WNW of Homer, Alaska, United States10-06 19:11
  10. 0.880 km WNW of Homer, Alaska, United States10-03 08:41
  11. 0.8101 km WNW of Homer, Alaska, United States10-06 18:19
  12. 0.796 km WNW of Homer, Alaska, United States10-03 03:27
  13. 0.792 km WNW of Homer, Alaska, United States10-05 12:47
  14. 0.696 km WNW of Homer, Alaska, United States10-03 07:44
  15. 0.594 km WNW of Homer, Alaska, United States10-03 07:08
  16. 0.598 km WNW of Homer, Alaska, United States10-05 13:17
  17. 0.497 km WNW of Homer, Alaska, United States10-05 08:50
  18. 0.498 km WNW of Homer, Alaska, United States10-06 00:44
  19. 0.396 km WNW of Homer, Alaska, United States10-02 11:01
  20. 0.394 km WNW of Homer, Alaska, United States10-05 16:15
  21. 0.398 km WNW of Homer, Alaska, United States10-05 17:25
  22. 0.2100 km WNW of Homer, Alaska, United States10-05 17:08
  23. -0.195 km WNW of Homer, Alaska, United States10-05 08:35
  24. -0.194 km WNW of Homer, Alaska, United States10-04 06:18
  25. -0.295 km WNW of Homer, Alaska, United States10-02 21:54

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Reports on SeismoAtlas

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Event id aka2026tmasqr. First recorded here 1 Oct 2026, 23:22:58 UTC. Solutions: USGS · AK (usgs:aka2026tmasqr). Cite as: SeismoAtlas, “M1.0 earthquake 93 km WNW of Homer, Alaska, United States”, https://seismoatlas.com/earthquake/aka2026tmasqr-m1-0-earthquake-93-km-wnw-of-homer-alaska-united-states, data from USGS.

JSON: /api/v1/events/aka2026tmasqr. SeismoAtlas is not an official warning service.