Volcano Watch: Explosive eruptions from Kilauea: beneficial or dangerous depending on location

Ash from an explosive event at Halema‘uma‘u on May 15, 2018, was blown by trade winds to the southwest, where it fell from the plume and blanketed the Ka‘u Desert landscape. (courtesy photo/ HVNP)

Map showing the path that Rev. William Ellis took walking from the summit of Kīlauea to Kealakomo on August 2, 1823. (courtesy photo/ HVNP)

Twenty-five years ago, the frequently explosive activity of Kilauea was unappreciated. Since then, continuing research has emphasized Kilauea’s past, and potential future, explosive eruptions.