What type of explosion is whakaari?

Whakaari, also known as White Island, is an active stratovolcano in New Zealand that primarily experiences phreatic explosions. These occur when magma heats groundwater, creating steam that builds pressure until it violently erupts. The explosions can be characterized by the ejection of steam, ash, and volcanic gases, often without significant prior warning. The volcano is closely monitored due to its potential hazards to nearby visitors and the surrounding environment.