Tongariro (NZ)


Location: New Zealand

Click For Current Alert Status (GNS Science)


The alert status page also has links for images, latest seismicity and more.

Snow-capped Ngauruhoe is a small 2291-m-high stratovolcano that was constructed during the past 2500 years. The symmetrical volcano, seen here from the NE, rises 800 m above its surroundings and is the highest peak of the Tongariro volcanic center. Tongariro is a large andesitic volcanic massif, located immediately NE of Ruapehu volcano, that is comprised of more than a dozen composite cones. Frequent explosive eruptions have been recorded from Ngauruhoe since its first historical activity in 1839.

Photo by Don Swanson, 1984 (U.S. Geological Survey).

Most recent eruption: 1977 July – Click this link for a table of eruptions

Brief description of Tongariro

Tongariro is a massive complex of volcanic cones and craters formed by eruptions from at least 12 vents over more than 275,000 years. Erosion during the last Ice Age has worn away what was once a substantial mountain into the world famous hiking destination that it is today. The complex includes Ngauruhoe volcano which is described separately here.

Within the landscape of ash, lava flows and erosion features, Tongariro has mineral springs and fumaroles (steam vents) at Ketetahi Springs, the Red Crater and Te Mari craters. These are part of New Zealand’s highest geothermal system which underlies parts of the volcano.

The Red and Te Mari craters were active in the 1800’s.

Read more from the source: GNS Science

Download a PDF fact sheet from GNS Science (3.22Mb) – Click the image below to download.

Other links
Details from the Global Volcanism Program

Aster Volcano Archive
A set of satellite images of the volcano
Tongariro National Park – Central North Island volcanoes

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