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The shock that struck the Wairarapa Region on 2 August was nearly as severe as the disastrous 24 June earthquake 5 weeks earlier.
| When | Sun Aug 2 1942 12:34 AM |
| Where | 10 km south-west of Masterton |
| Shaking | Extreme |
| Magnitude | 6.8 |
| Depth | 40 km |
| Quality | best |
| Extreme | 2 | |
| Severe | 31 | |
| Strong | 18 | |
| Moderate | 13 | |
| Light | 29 | |
| Weak | 18 | |
| Total | 114 |
| When | Sun Aug 2 1942 12:34 AM |
| Where | 10 km south-west of Masterton |
| Shaking | Extreme |
| Magnitude | 6.8 |
| Depth | 40 km |
| Quality | best |
| Extreme | 2 | |
| Severe | 31 | |
| Strong | 18 | |
| Moderate | 13 | |
| Light | 29 | |
| Weak | 18 | |
| Total | 114 |