While their geological histories are intertwined, Ruapehu and Tongariro each pack their own hidden labyrinth of magmatic systems - and their own explosive records. "This is a comprehensive review of the state of scientific knowledge of Ruapehu and Tongariro volcanoes – a first of its kind for the iconic volcanoes of Tongariro National Park," said lead author Dr Graham Leonard, of GNS Science. Mt Tongariro, pictured looking out to Mt Ngaruahoe and Mt Ruapehu. Photo / Robert Hawira"Historic activity at both Ruapehu and Tongariro remind us of the ever-present chance of sudden onset steam-driven eruptions," Leonard said. A silhouetted Mt Ruapehu belches ash during its 1995/96 eruptive episode.

Source: New Zealand Herald May 11, 2021 07:31 UTC