Earthquake in Southeast of Honshu
Reported by ISC 175 days ago.
What the source measured
ISC reported: Southeast of Honshu
ISC recorded magnitude 5.0 at a depth of 10 km.
The seismic region given by the source is Southeast of Honshu.
How we know
One source: ISC. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 60 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Earthquake |
| Severity | medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 60% |
| Coordinates | 30.5410, 142.5890 |
| Nearest City | Katsuura (555 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-09T06:39:02.230Z |
| Source | http://www.isc.ac.uk/cgi-bin/web-db-run?event_id=645496426&out_format=IMS1.0&request=COMPREHENSIVE |
Score Breakdown
Technical Details
| Mag | 5.04 |
| Depth | 10 |
| Region | Southeast of Honshu |
| MagType | mb |
Cascade Risks
Safety Information
If you feel shaking: Drop, Cover, and Hold On. Move away from windows, heavy objects, and exterior walls. After shaking stops, check for injuries and structural damage. Be prepared for aftershocks, which can occur minutes to months after the mainshock. Follow instructions from local emergency management authorities.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Calamity.live data shows a earthquake event with CalamityScore 16/100, in Southeast of Honshu, based on data from isc. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.