Mount Sibo

Mount Sibo (also called ‘Mount Hammond’) is an active stratovolcano, located in the northern area of Nublar island. The volcano went active recently, after 5 centuries of dormancy.

The name of the volcano comes from Sibù, the local creator deity from Bribri tradition.

23th June 2018 eruption
The eruption started midday when a massive fissure breached the magma chamber and sent lava flows all over the island. Volcanic explosions then started and happened every few minutes. During this, volcanic rock was sent flying on to the island. Later, the eastern side of the volcano collapsed, generating a Cloud of ash and gas that engulfed a side of the island. Shortly after that, another side of the volcano collapsed due to lava melting the rock.

The eruption destroyed the whole Nublar island and caused global climate disturbances. The eruption was of Vulcanian type but due to how long it lasted it was rated as VEI-6. The eruptive column reached a maximum height of 33 kilometers. It was known for being the longest Vulcanian eruption ever recorded.