Whangaehu is a settlement in the Rangitikei District and Manawatū-Whanganui region of New Zealand's North Island.
Whangaehu is located near the mouth of the Whangaehu River, a large river flowing from for 135 kilometres (84 mi) the crater lake of Mount Ruapehu on the central plateau, southward to the South Taranaki Bight in the Tasman Sea.
[1] Nicholas Chevalier depicted the settlement in a sketch in December 1868, which is now in the Museum of New Zealand Te Papa Tongarewa.
[4] The sudden collapse of part of the Ruapehu crater wall on 24 December 1953 led to New Zealand's worst railway accident, the Tangiwai disaster.
[5] On 18 March 2007, the mountain crater lake burst, sending an estimated 1.29 billion cubic metres of water, mud, and sludge down the river.