Right now
The most recent data we hold from ISC arrived 23 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
Reported by ISC 173 days ago.
It is the only one we have recorded within 20 km of this point since 16 March 2026.
What the source measured
ISC reported: Near south coast of eastern Honshu
ISC recorded magnitude 4.8 at a depth of 120 km.
The seismic region given by the source is Near south coast of eastern Honshu.
How we know
Confirmed by 2 independent sources, including ISC.
Our own score for this event is 7 out of 100, at 63 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Earthquakes |
| Severity | Low |
| Calamity Score (ours) | 7 / 100 |
| Our confidence | 63% |
| Coordinates | 35.0100, 139.4700 |
| Timestamp | 2026-03-16T10:37:49.800Z |
| Source | http://www.isc.ac.uk/cgi-bin/web-db-run?event_id=645513795&out_format=IMS1.0&request=COMPREHENSIVE |
Score Breakdown
Technical Details
| Mag | 4.8 |
| Depth | 120 |
| MagType | MB |
| Region | Near south coast of eastern Honshu |
| Iris Mag | 4.6 |
| Iris Depth | 121.97 |
| Iris MagType | mb |
| Iris Region | NEAR S. COAST OF HONSHU, JAPAN |
| MergedSources | [{"id":"iris_12082873","source":"iris","severity":"low","severityValue":27.599999999999998,"timestamp":1773657469000,"latitude":34.7732,"longitude":139.4133}] |
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 8 March 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.
Want to know when something happens in this area?
Calamity.live data shows a earthquake event with CalamityScore 7/100, in Near South Coast of Eastern Honshu (Japan), based on data from isc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.