Volcano types
1954 Ngāuruhoe eruption
Types of magma
Extinct volcanoes, Banks Peninsula (1st of 2)
Ash plume, Mt Ruapehu 1996 (1st of 2)
Explosive eruption, Mt Ruapehu
The Pacific Ring of Fire (1st of 2)
Subduction under the North Island
Submarine volcanoes, Kermadec Ridge
Mayor Island
Obsidian knife
Mt Ngāuruhoe erupting, 1974 (1st of 2)
Mt Ngāuruhoe, 1993
Onshore and offshore volcanoes
Taranaki ring plain
Early map of Auckland (1st of 2)
Raoul Island caldera
Lake Rotorua
Volcanic landscape
Mt Tarawera
Tephras from Mt Tarawera
Lake Taupō
Ōruanui ash (1st of 2)
Taupō eruptions
Charred logs in Taupō ignimbrite
Underwater vents
Haungaroa undersea volcano
Pillow lavas
Macauley caldera (1st of 3)
Raoul Island map, 1855
Healy volcano
Layers of volcanic ash
Ruapehu eruption, July 1996
Alan Pullar and Colin Vucetich, pioneers in tephrostratigraphy
Named tephra beds
Minerals from Mayor Island
Volcanic ash in lakes
Lahar warning
Gas sampling
Hazardous volcanoes
Volcanic avalanche mounds
Tarawera and Edgecumbe (Pūtauaki)
Monitoring earthquakes