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Story: Historic volcanic activity

Mt Ngāuruhoe erupting, 1974

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Mt Ngāuruhoe erupting, 1974

The final and most powerful of Ngāuruhoe’s 1974–75 eruptions took place on 19 February 1975. A series of photographs, taken from the Mangatepopo valley, showed the development of a block and ash eruption. This photograph, taken approximately three seconds after a powerful explosion, shows an ash plume emerging from the crater.

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by Graham Hancox

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How to cite this page

Eileen McSaveney, Carol Stewart and Graham Leonard, Historic volcanic activity – Tongariro and Ngāuruhoe, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/en/photograph/6853/mt-ngauruhoe-erupting-1974 (accessed 4 June 2026).

Story by Eileen McSaveney, Carol Stewart and Graham Leonard, published 2 March 2009.