‘Vancouver! Vancouver! This is it!’ – Radio message from David Johnston (30), United States Geological Survey (USGS) volcanologist who was killed by the 1980 eruption of Mount St. Helens in Washington State, May 18, 1980 at 8:32 AM
It’s 40 years on, and Mount St Helens is still an active volcano and under constant surveillance. From the USGS website: The 1980 eruption jump-started interest in the study of explosive eruptions and monitoring efforts to improve warning systems that help mitigate hazards. The eruption underscored the importance of using as many monitoring tools as possible to track unrest and eruption activity.
