R. Wally Johnson is an honorary associate professor in the Department of Pacific Affairs at The Australian National University. He worked for many years for Geoscience Australia, first as a research scientist and later in senior management roles. Most of his research career has focused on the volcanology of Papua New Guinea. Johnson is an honorary life member of the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI) and an honorary fellow of the International Union of Geodesy and Geophysics (IUGG).