MODERATE EARTHQUAKE
5 km ESE of Asahi, Japan
A magnitude 5.5 earthquake struck 5 km ESE of Asahi, Japan on 28 Oct 2026, 15:07 UTC. The hypocentre was 41.4 km below the surface — shallow by seismological convention. No felt reports have been received so far. The figures have been revised 13 times since the first report. 5 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.
- Depth
- 41.4 km
- Latitude
- 35.70°N
- Time
- 15:07 UTC
- Magnitude
- M5.5
shallow
140.71°E longitude
28 Oct 2026
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EPICENTRE
MAGNITUDE 5.5
Can damage poorly constructed buildings; well-built structures usually escape with little harm.
The scale is logarithmic: this released about 180 times the energy of a magnitude 4.0, roughly the energy of 3 thousand tonnes of TNT.
41.4 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
5 earthquakes above our reporting threshold within 250 km of this one, the largest a magnitude 5.3.
OTHER RECENT EARTHQUAKES
28 Oct 2026, 15:40 UTC · 10 km deep
28 Oct 2026, 13:31 UTC · 10 km deep
28 Oct 2026, 12:58 UTC · 130 km deep
28 Oct 2026, 12:47 UTC · 10 km deep