Geological hazards

NIWA studies marine geological hazards, including earthquakes, submarine landslides and tsunami, volcanic eruptions, seafloor scour, sediment transport and shallow gas.
Tonga eruption and tsunami shock the world - Vimeo
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The Hunga-Tonga Hunga-Ha'apai (HT-HH) volcano was like a massive shotgun blast from the deep, generating the biggest atmospheric explosion recorded on Earth in more than 100 years. Funded by The Nippon Foundation, NIWA and SEA-KIT surveyed over 22,000km2 surrounding the volcano, including mapping 14,000km2 of previously unmapped seafloor as part of The Nippon Foundation GEBCO Seabed 2030 project.

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