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.
Te whakamahi i tēnei tūemi
Photograph by Graham Hancox
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