Reported by GFZ 169 days ago.
What the source measured
GFZ reported: Off East Coast of Honshu, Japan
GFZ recorded magnitude 5.1 at a depth of 25 km.
The seismic region given by the source is Off East Coast of Honshu, Japan.
Nearby, since 15 March 2026
- March 15, 2026 · score 7 · 4.7 km
- June 14, 2026 · score 3 · 15.4 km
How we know
Confirmed by 3 independent sources, including GFZ.
Our own score for this event is 16 out of 100, at 72 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Earthquake |
| Severity | low |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 72% |
| Coordinates | 40.8790, 143.3520 |
| Timestamp | 2026-03-15T15:32:40.750Z |
| Source | https://geofon.gfz-potsdam.de/eqinfo/event.php?id=gfz2026feqm |
Score Breakdown
Technical Details
| Mag | 5.06 |
| Depth | 25.4 |
| MagType | mb |
| Region | Off East Coast of Honshu, Japan |
| Isc Mag | 4.8 |
| Isc Depth | 37 |
| Isc MagType | M |
| Isc Region | Off east coast of Honshu |
| Iris Mag | 4.8 |
| Iris Depth | 37.86 |
| Iris MagType | mb |
| Iris Region | OFF EAST COAST OF HONSHU, JAPAN |
| MergedSources | [{"id":"isc_645512767","source":"isc","severity":"low","severityValue":28.799999999999997,"timestamp":1773588762000,"latitude":40.905,"longitude":143.307},{"id":"iris_12082626","source":"iris","severity":"low","severityValue":28.799999999999997,"timestamp":1773588761000,"latitude":40.9048,"longitude":143.3074}] |
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 Off East Coast of Honshu, Japan (Japan), based on data from gfz. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.