Linked from
The 42 pages that link to Volcanic island, each with the reason it gives.
IslandBroader topic: Submarine eruptions can pile up lava until a volcano emerges from the sea.
Oceanic islandBroader topic: It is the most common geological form of oceanic island.
ArchipelagoBroader topic: Repeated eruptions can produce strings of islands along volcanic arcs.
Lake islandBroader topic: Volcanic activity can create islands within lake basins.