Part one of term paper
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 been Strombolian - spasmodic gas and steam escape with ejection of pyroclastic m ...

Part two of term paper
... of the crater lake wall leading to destructive laharic flows which destroyed part of the Wellington - Auckland express line, killing 151 people. The main volcanic hazards of the volcano are laharic flows - matrix-rich flows formed when hot pyroclastic material comes into contact with external water (from the crater lake, melted snow or ice and heavy rainfall), pyroclastic flows - collapse of eruption column causes a hot concentrated flow of debris and gas, and Ash fall - fine volcanic particle ...