On 17/05/2026 03:20 UTC a magnitude 4.5 earthquake occurred near SSE of Wainui, New Zealand. Hypocentre depth: 10 km. Coordinates: -39.696°, 178.891°.
Event technical data
| Magnitude | M 4.5 |
| Depth | 10 km |
| Coordinates | -39.6956°, 178.8910° |
| Time (UTC) | 2026-05-17 03:20 UTC |
| Location | 132 km SSE of Wainui, New Zealand |
Seismic context
Technical analysis: New Zealand straddles the boundary between the Pacific and Australian plates (Alpine Fault, Hikurangi subduction margin), giving it very high seismicity.
Geotechnical relevance
For geotechnical engineering in New Zealand, monitoring local seismicity supports site-specific hazard assessment, liquefaction screening of saturated sands, seismic slope-stability checks and foundation design for dynamic loads. Each recorded event refines local ground-motion and attenuation models.
Official source
GeoNet (GNS Science) — official national earthquake monitoring authority. Visit GeoNet (GNS Science) →
Cross-checked with the global USGS catalogue.
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