LIGHT EARTHQUAKE
112 km S of Koshima, Japan
A magnitude 4.8 earthquake struck 112 km S of Koshima, Japan on 03 Oct 2026, 06:05 UTC. The hypocentre was 37.5 km below the surface — shallow by seismological convention. 2 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.
- Depth
- 37.5 km
- Latitude
- 29.22°N
- Time
- 06:05 UTC
- Magnitude
- M4.8
shallow
130.61°E longitude
03 Oct 2026
mb
EPICENTRE
MAGNITUDE 4.8
Noticeable shaking of indoor objects. Damage is unlikely.
The scale is logarithmic: this released about 500 times the energy of a magnitude 3.0, roughly the energy of 239 tonnes of TNT.
37.5 KM DEEP
Shallow earthquakes release their energy close to the surface, so they are felt more strongly, and do more damage, than deeper earthquakes of the same magnitude.
NEARBY IN THE PAST 30 DAYS
2 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 5.1.
OTHER RECENT EARTHQUAKES
19 Oct 2026, 08:51 UTC · 124.8 km deep
19 Oct 2026, 08:21 UTC · 10 km deep
19 Oct 2026, 08:12 UTC · 10 km deep
19 Oct 2026, 07:55 UTC · 10 km deep