| Type | Earthquake |
|---|---|
| Status | Historical |
| Name | 125 km S of Honchō, Japan |
| Date | 2025/12/08 |
| Time | 21:52 |
| Country | Japan |
| Origin | 40.9761000, 143.1505000 |
| Hazard Map | ShakeMap (XML, Gzipped), 2025/12/09 00:16:40 |
| Moment Magnitude | 6.6 |
| Energy Magnitude | 6.5361 |
| Focal Depth | 19 km |
| Tectonic Setting | Active Shallow |
| Seismic Moment | 8.9125·1025 dyn·cm (8.9125·1018 J) |
| Radiated Seismic Energy | 1.426·1014 J |
| Access | Public |
| No | Time | Epicenter | Focal Depth | Magnitude | Catalog |
|---|---|---|---|---|---|
| 1. | 21:52:40 | 41.0074000, 143.0999000 | 10 km | 6.6 Mw | USGS |
| 2. | 21:52:41 | 41.0034000, 143.1637000 | 19 km | 6.6 Mw | USGS |
| 3. | 21:52:41 | 40.9883000, 143.1506000 | 19 km | 6.6 Mw | USGS |
| 4. | 21:52:41 | 40.9761000, 143.1505000 | 19 km | 6.6 Mw | USGS |
| No | Date |
|---|---|
| 1. | 2025/12/09 00:16:40 |
| 2. | 2025/12/08 22:51:53 |
| 3. | 2025/12/08 22:22:46 |
Risk Assessment | Natural Hazards | Industrial Plants | Scientific | Users |