The 20-year anniversary of the Mt Ruapehu eruption will be marked by a range of science presentations at the Tongariro National Park Centre.
Scientists, emergency managers, conservation staff, iwi and university students will gather at Whakapapa Village from Friday for the Volcanic Science and Risk Management workshop.
It will feature a range of presentations and activities to reflect on two decades of progress in managing eruption hazards and risks in Tongariro National Park.
The event will also coincide with the 40th anniversary of the 1975 Ngauruhoe eruption and the 70th anniversary of the 1945 Ruapehu eruption.
Joint Centre for Disaster Research director David Johnston will discuss the social impacts of the volcanic hazards. It was an opportunity reflect on two decades' progress, he said. The centre is jointly run by Massey University and GNS Science.