A Vulcanian explosion from the Ngauruhoe cone of Tongariro volcano in New Zealand on 19 February ejects an ash plume and ballistic ejecta. Blocks up to 20 m across reached hundreds of meters above the vent before impacting the flanks.

Photo by Ian Nairn, 1975 (New Zealand Geological Survey).

This image is made available under the Creative Commons BY-NC-ND 4.0 license terms.

Keywords: Vulcanian | ash plume | volcanic ash | eruption | ballistic ejecta | explosive eruption | ballistics | blocks | ash plume | crater | vent

Tongariro