Mount Sibo is the volcano on Isla Nublar in Jurassic World: Fallen Kingdom. Its impending eruption threatens the dinosaurs still living on the island and drives the film’s rescue mission.
The volcano’s activity turns Isla Nublar into an evacuation zone. Claire Dearing and the Dinosaur Protection Group argue that the animals should be saved from extinction, while others treat the eruption as a natural event that should be allowed to run its course. The crisis ultimately becomes the justification for transporting dinosaurs off the island.
Mount Sibo is fictional and belongs to the Jurassic World setting. It should not be confused with Mount Etna in Italy, Mount Rainier in the United States, or Mount Kilimanjaro in Tanzania. The name is also distinct from Isla Sorna, the separate island used as the dinosaurs’ breeding site in The Lost World: Jurassic Park.
The volcano’s story has consequences beyond the film’s opening disaster. Once the rescued animals reach the mainland, the franchise shifts from an isolated-island survival story to a world in which genetically recreated dinosaurs can spread into human environments.