| Magnitude | 4.6 |
| Alert | |
| Depth ? | 37.75 |
| Nst ? | |
| Dmin ? | 0.642 |
| Dmin ? | 2.7 |
| Location | Mito |
| Ibaraki Prefecture | |
| Japan (jp)) |
| Oarai | 38.46 km |
| Kashima | 41.00 km |
| Itako | 48.59 km |
| Mito | 49.16 km |
| Hitachi | 52.33 km |
| Katori | 55.94 km |
| Takahagi | 61.14 km |
| Asahi | 62.52 km |
| Ishioka | 62.76 km |
| Kasama | 62.88 km |