The final and most powerful of Ngāuruhoe’s 1974–75 eruptions took place on 19 February 1975. Within about 30 seconds the ash cloud had risen and expanded. Some of the heavier material in the ash column had started to drop, forming pyroclastic flows that travelled 2 kilometres into the Mangatepopo valley.
Te whakamahi i tēnei tūemi
Private collection
Photograph by Graham Hancox
This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.
Tāpiritia te tākupu hou