Video: Dramatic moment Tongariro erupts

20:50, Nov 21 2012

New footage released by New Zealand's geoscience agency shows the explosive moment Mt Tongario erupted.

GNS Science released the footage this morning, a day after the Wednesday November 22 eruption at the Te Maari crater.

It is the second eruption on the mountain this year, and scientists warn months or even years of eruptions could be ahead.