Sector collapse
Videos
A sector collapse or lateral collapse is the structural failure and subsequent collapse of a minimum volume of 1 km3 of a volcano. Unlike smaller flank collapses, a sector collapse can involve the cen
Sector collapse during the 1980 eruption of Mount St. Helens
Example of sector collapse: cross-section diagram of Tata Sabaya volcano (in Bolivia) (a) pre-collapse volcano, (b) after collapse, (c) new edifice built on top of collapsed old edifice
Mudflow-induced property damage caused by the 1980 Mount St. Helens sector collapse
Debris avalanche deposit of Tata Sabaya volcano's sector collapse
Volcanic landslide
Videos
A volcanic landslide or volcanogenic landslide is a type of mass wasting that takes place at volcanoes. Typically, the volcano builds up material in a peak that eventually becomes too high to be stabl
Sector collapse
…collapse or lateral collapse is the structural failure and subsequent collapse of a minimum volume of 1 km3 (0.24 cu mi) of a volcano. Unlike smaller flank collapses, a sector collapse can involve the central volcanic pipe and historically this term had been restricted by some writers to such events in arc…
A landslide deposit obstructing a lava lake in the north crater of Mount Yasur on Tanna Island, Vanuatu
Black dashed lines delineate 17 distinct landslides that have occurred around the Hawaiian Islands over the last several million years