David A. Johnston, American volcanologist and geologist (died 1980)

David A. Johnston

American volcanologist (1949–1980)

David Alexander Johnston was an American United States Geological Survey (USGS) volcanologist who was killed by the 1980 eruption of Mount St. Helens in the U.S. state of Washington. A principal scientist on the USGS monitoring team, Johnston was killed in the eruption while…