A sector collapse or lateral collapse is the structural failure and subsequent collapse of part of a volcano. Unlike a flank collapse, a sector collapse...

a second sector collapse. Prehistoric Stromboli, Sciara del Fuoco collapse Popocatépetl, Ventorrillo collapse Mount Rainier, Osceola collapse Historic...

Parinacota, there is a noticeable difference between the pre-sector collapse and post-sector collapse magmas, indicating that a large turnover of the magmatic...

as sector collapse, earthquakes, or interactions with groundwater. Some of these triggers operate only under limited conditions. For example, sector collapse...

of Hualca Hualca underwent a large sector collapse between 1.36 and 0.61 million years ago, opening up a collapse amphitheatre and forming a lake in the...

active crater on the southwestern side, which also bears traces of a sector collapse. An eruption occurred in 2016. The island was officially discovered...

May 18, 1980, caused the entire weakened north face to slide away, a sector collapse which was the largest subaerial landslide in recorded history. This...

suffered a major sector collapse during the Holocene, forming one of the largest terrestrial collapse deposits. The deposit left by the collapse was first discovered...

especially the 1802 and 1787 events, most likely occurred at Tutupaca. The sector collapse of eastern Tutupaca was accompanied by an eruption that was among the...

attraction on the island. Sciara del Fuoco was formed as a result of a sector collapse around 5,000 years ago. Due to this, it is sometimes referred to as...