Story: Volcanoes

Mt Ngāuruhoe erupting, 1975 (2nd of 2)

Mt Ngāuruhoe erupting, 1975

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.

Using this item

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.

All images & media in this story

How to cite this page:

Richard Smith, David J. Lowe and Ian Wright, 'Volcanoes - Cone volcanoes and volcanic fields', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/photograph/8700/mt-ngauruhoe-erupting-1975 (accessed 11 August 2020)

Story by Richard Smith, David J. Lowe and Ian Wright, published 12 Jun 2006