Harry Glicken
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Harry Glicken was an American volcanologist. He researched Mount St. Helens in the United States before and after its 1980 eruption, and was very distraught about the death of volcanologist David A. J
Glicken at work, 1980s
David A. Johnston
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David Alexander Johnston was an American United States Geological Survey volcanologist who was killed by the 1980 eruption of Mount St. Helens in the U.S. state of Washington. A principal scientist on
Harry Glicken
…He researched Mount St. Helens in the United States before and after its 1980 eruption, and was very distraught about the death of volcanologist David A. Johnston, who was Glicken's mentor and supervisor in Spring 1980 at Mount St. Helens. Glicken was initially assigned to the USGS observation post in the weeks…
The last picture taken of Johnston on May 17, 1980, 13 hours before his death at the eruption site
Mount St. Helens as seen on May 17, 1980 one day before the eruption, photographed by Harry Glicken from the ridge where the Coldwater II observation post occupied by Johnston was located
Mount St. Helens in September 1980 four months after the eruption, photographed by Harry Glicken from approximately the same location as the previous photo. In the intervening period, the volcano had erupted, killing Johnston and approximately 60 others, devastating the landscape.
Johnston Ridge from the Johnston Ridge Observatory in July 2005, showing new plant growth among dead trees from the eruption 25 years earlier