Linked from
The 41 pages that link to Volcanic eruption, each with the reason it gives.
Volcanic ventNarrower topic: An eruption is the event in which a vent releases volcanic material.
TuffNarrower topic: Explosive eruptions generate the ash and other fragments from which tuff forms.
Taal VolcanoNarrower topic: Eruptions build and repeatedly alter Taal's island and crater landscape.
Volcanic coneNarrower topic: Eruptions create the deposits from which volcanic cones grow.
Mount BromoNarrower topic: Eruptions explain Bromo’s ash plumes and periodic restrictions on access.