Earthquakes in Japan — October 2026
1 earthquakes were recorded in Japan during October 2026, an average of 0.0 per day.
1 reached magnitude 4 or above and 1 reached magnitude 5 or above. The average focal depth was 42 km.
The month's largest event in Japan was a magnitude 5.3 earthquake near Yōkaichiba, Japan on 01 October 2026 at 12:27 UTC. A magnitude 5.3 earthquake radiates roughly 1,344 tons of TNT equivalent in seismic energy.
That is below the Japan monthly average of 55 events over the period we cover — a comparatively quiet month, and down from the 48 recorded the previous month.
100% of events here are shallow (under 70 km), 0% intermediate (70–300 km) and 0% deep-focus (over 300 km). Almost everything here is crustal. That is characteristic of transform faulting or continental deformation rather than subduction — and it means shaking at the surface is strong for the magnitudes involved.
By band, the catalogue holds 1 in the magnitude 5 range.
That is 98% below the 55 events Japan averages per month across the 23 months on record.
Largest earthquakes in Japan, October 2026
1 event listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 5.3 | Yōkaichiba, Japan | 41.6 | Japan | View details View |
Frequently asked questions
How many earthquakes hit Japan in October 2026?
1 earthquakes were recorded in Japan during October 2026, of which 1 were magnitude 4 or above.
What was the biggest earthquake in Japan in October 2026?
A magnitude 5.3 event near Yōkaichiba, Japan on 01 October 2026.
Other months in Japan
Magnitudes for October 2026 reflect the current USGS review status and may have been revised since first publication. See our guides on the magnitude scale, focal depth and why earthquakes cluster.