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Mt. Ruapehu is the largest composite stratovolcano in North Island, New Zealand. Currently at Alert level 3, the volcano is active, mainly small strombolian steam eruptions through the crater lake. In the past 50 years the main eruptive styles of the volcano have ....

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.... pyroclastic flows - collapse of eruption column causes a hot concentrated flow of debris and gas, and Ash fall - fine volcanic particles held in suspension. Other hazards include the remobilisation of ash, volcanic tremors and avalanches. A future eruption would effect population, buildings, transport, water supply, livestock and crops. In the event of an eruption many of the surrounding villages (especially in the valleys) would have to be evacuated. LOCATION: Mt. Ruapehu is situated in North Island, New Zealand (Fig.1) within the Southern end of the Taupo volcanic zone, which stretches NE to White Island in the Bay of Plenty (Fig.2). Mt. Ru ....