David A. Johnston

David A. Johnston was a prominent American volcanologist known for his expertise in monitoring volcanic activity and enhancing public safety during eruptions. He gained recognition for his research on Mount St. Helens, particularly during its eruption in 1980. Johnston was dedicated to understanding volcanic behavior and the risks they pose. Tragically, he lost his life while studying the eruption, serving as a poignant reminder of the dangers faced by scientists in the field. His work has contributed significantly to volcanic hazard assessment and has influenced how we prepare for and respond to volcanic events.