| When | Wed May 17 2023 8:39 AM |
| Where | 45 km north-east of Arthur's Pass |
| Shaking | Weak |
| Magnitude | 4.5 |
| Depth | 5 km |
| Quality | best |
| Extreme | 0 | |
| Severe | 0 | |
| Strong | 1 | |
| Moderate | 17 | |
| Light | 189 | |
| Weak | 307 | |
| Total | 514 |
| Extreme | 0 | |
| Severe | 0 | |
| Strong | 1 | |
| Moderate | 17 | |
| Light | 189 | |
| Weak | 307 | |
| Total | 514 |