M0.4 earthquake 97 km WNW of Homer, Alaska, United States
A magnitude 0.4 earthquake struck 97 km WNW of Homer, Alaska, United States at 00:50 local time (08:50 UTC) on 5 Oct 2026, at a depth of 5 km, according to USGS. The solution is preliminary and may be revised.
Data: USGS · updated 2026-10-05 08:53 UTC · automatic solution
- Magnitude
- 0.4micro
local magnitude (Richter) (ml) - Depth
- 5 km
- Status
- Automatic
- Origin time
- 2026-10-05 08:50:28 UTC
- Local: 5 Oct 2026, 00:50:28 (America/Anchorage)
- Epicentre
- 60.035° N, 153.091° W
Advertisement
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
| Place | Distance | Est. shaking |
|---|---|---|
| HomerAlaska, United States · pop. 5,515 | 97 km | INot felt |
| KalifornskyAlaska, United States · pop. 7,850 | 108 km | INot felt |
| AnchorageAlaska, United States · pop. 289,600 | 218 km | INot 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.
| Agency | Magnitude | Depth | Epicentre | Time offset | Status |
|---|---|---|---|---|---|
| USGS · AKheadlineAlaska Earthquake Center via U.S. Geological Survey | 0.4 ml | 5 km | 60.03° N, 153.09° W | – | Automatic |
Advertisement
How big was it?
Usually not felt. Recorded by nearby seismometers; thousands occur worldwide every day.
It released roughly the energy of 60 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 5 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.
M1.0 releases about 7.9× the energy of M0.4, and its waves are about 4× taller on a seismogram. Energy: 477 g of TNT vs 60 g of TNT.
Each square is the energy of one M0.4. Energy from log₁₀E = 1.5M + 4.8.
Aftershocks and nearby activity
21 later earthquakes within 30 km; the largest was M2.6 1 day ago. 82 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.
Mainshock M0.4
21 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).
| Time after mainshock (hours) | Magnitude | Depth (km) |
|---|---|---|
| 3.33 | 2.6 | 125 |
| 3.95 | 0.7 | 5 |
| 4.45 | 0.5 | 5 |
| 7.18 | 1.8 | 139 |
| 7.42 | 0.3 | 5 |
| 8.29 | 0.2 | 1 |
| 8.59 | 0.3 | 0 |
| 15.85 | -1.3 | 3 |
| 15.90 | 0.4 | 5 |
| 19.37 | -0.8 | 5 |
| 24.56 | -0.8 | 0 |
| 25.26 | -0.6 | 2 |
| 26.69 | -0.9 | 1 |
| 27.98 | -0.9 | 1 |
| 28.26 | -1.2 | 0 |
| 28.52 | -0.9 | 2 |
| 31.22 | -1.2 | -1 |
| 31.72 | -1.1 | -2 |
| 33.49 | 0.8 | 7 |
| 34.35 | 1.0 | 97 |
| 40.01 | 2.0 | 172 |
- 2.695 km NW of Homer, Alaska, United States10-05 12:10
- 2.0113 km WNW of Homer, Alaska, United States10-07 00:51
- 1.8100 km WNW of Homer, Alaska, United States10-05 16:01
- 1.077 km WNW of Homer, Alaska, United States10-06 19:11
- 0.8101 km WNW of Homer, Alaska, United States10-06 18:19
- 0.792 km WNW of Homer, Alaska, United States10-05 12:47
- 0.598 km WNW of Homer, Alaska, United States10-05 13:17
- 0.498 km WNW of Homer, Alaska, United States10-06 00:44
- 0.394 km WNW of Homer, Alaska, United States10-05 16:15
- 0.398 km WNW of Homer, Alaska, United States10-05 17:25
- 0.2100 km WNW of Homer, Alaska, United States10-05 17:08
- -0.6100 km WNW of Homer, Alaska, United States10-06 10:05
- -0.897 km WNW of Homer, Alaska, United States10-06 09:24
- -0.896 km WNW of Homer, Alaska, United States10-06 04:12
- -0.996 km WNW of Homer, Alaska, United States10-06 11:32
- -0.996 km WNW of Homer, Alaska, United States10-06 12:49
- -0.997 km WNW of Homer, Alaska, United States10-06 13:21
- -1.196 km WNW of Homer, Alaska, United States10-06 16:33
- -1.296 km WNW of Homer, Alaska, United States10-06 13:06
- -1.297 km WNW of Homer, Alaska, United States10-06 16:03
- -1.397 km WNW of Homer, Alaska, United States10-06 00:41
Did you feel it?
Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.
Reports on SeismoAtlas
No reports yet.
Advertisement
Event id aka2026tshtjs. First recorded here 5 Oct 2026, 08:53:57 UTC. Solutions: USGS · AK (usgs:aka2026tshtjs). Cite as: SeismoAtlas, “M0.4 earthquake 97 km WNW of Homer, Alaska, United States”, https://seismoatlas.com/earthquake/aka2026tshtjs-m0-4-earthquake-97-km-wnw-of-homer-alaska-united-states, data from USGS.
JSON: /api/v1/events/aka2026tshtjs. SeismoAtlas is not an official warning service.