Tsunamis

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A six-metre long orange underwater robot is flying through the Kaikōura Canyon for the next month collecting information on how the canyon has changed since the 2016 earthquake.
A network of state-of-the-art tsunami buoys is being deployed from New Zealand up into the Pacific to keep communities safer.
NIWA scientists have completed the first national assessment of people and buildings at risk in New Zealand’s tsunami evacuation zones.
EQC, GNS Science and NIWA have joined forces to further develop world-leading natural hazards risk modelling for New Zealand.

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The Ocean Survey 20/20 (OS 20/20) programme is a Government initiative, which aims to provide New Zealand with better knowledge of its ocean territory, including New Zealand's Exclusive Economic Zone (EEZ), Continental Shelf and the Ross Sea Region.

Latest videos

Tracing tsunamis through history
Weaving whakapapa and science together to trace tsunami through history.
Shifting Sands - Tsunami hazard off Kaikoura, NZ

Dr Joshu Mountjoy discusses NIWA's work in assessing the tsunami hazard just south of Kaikoura. 

Find out more about this research. 

A six-metre long orange underwater robot is flying through the Kaikōura Canyon for the next month collecting information on how the canyon has changed since the 2016 earthquake.
A network of state-of-the-art tsunami buoys is being deployed from New Zealand up into the Pacific to keep communities safer.
NIWA scientists have completed the first national assessment of people and buildings at risk in New Zealand’s tsunami evacuation zones.
EQC, GNS Science and NIWA have joined forces to further develop world-leading natural hazards risk modelling for New Zealand.
NIWA researchers are out on Lake Whakatipu for the next week mapping the lake floor for the first time.
Tracing tsunamis through history
Weaving whakapapa and science together to trace tsunami through history.
Research conducted after the 2016, 7.8 magnitude Kaikōura earthquake has provided scientists with an extremely rare opportunity to understand the processes that shape submarine canyons.
The Tangaroa assisted in New Zealand’s largest ever deployment of seafloor earthquake recording instruments in a bid to learn more about the earthquake behaviour of the tectonic plates beneath the east coast of the North Island.
A tsunami reporting station situated in the Pacific Ocean that is currently off line is to be upgraded in a joint operation involving New Zealand and United States government agencies.
The New Zealand Palaeotsunami Database (Database) brings together all known information about tsunamis that occurred prior to written records.
Imagine if you could foresee what would happen to your home in a severe flood or tsunami, and then work out how to prevent or reduce the impact before any such event occurred.

The scientific records of palaeotsunamis to have affected New Zealand shores can now be accessed in a new one-stop information shop.

An exhibition of work NIWA was involved in titled “Shifting Paradigm: The Village of Sa’Anapu, Samoa” was hosted by the National Museum of Samoa this year and is now available in a striking digital presentation.
Shifting Sands - Tsunami hazard off Kaikoura, NZ

Dr Joshu Mountjoy discusses NIWA's work in assessing the tsunami hazard just south of Kaikoura. 

Find out more about this research. 

The Ocean Survey 20/20 (OS 20/20) programme is a Government initiative, which aims to provide New Zealand with better knowledge of its ocean territory, including New Zealand's Exclusive Economic Zone (EEZ), Continental Shelf and the Ross Sea Region.

Welcome to this special edition of  Natural Hazards Update, highlighting the Shallow Survey 2012.

Coming from the Japanese word 'harbour wave', tsunami are a series of waves – with wave lengths up to hundreds of kilometres between crests - caused by undersea seismic disturbances.

If the tsunami is local, the best thing to do is to move inland as quickly as possible – if possible, either over 10m above sea level or over 1km inland.

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