David A. Johnston
David Alexander Johnston (December 18, 1949 – May 18, 1980) was an American USGS volcanologist. He was killed by the 1980 eruption of Mount St. Helens in Washington. He was a principal scientist on the USGS monitoring team,[1]
David A. Johnston | |
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_2_(cropped).jpg) Johnston at Mount St. Helens in April 1980 | |
| Born | David Alexander Johnston December 18, 1949 Chicago, Illinois, United States |
| Died | May 18, 1980 (aged 30) Mount St. Helens, Washington, United States |
| Cause of death | Killed by the volcanic eruption of Mount St. Helens |
Johnston was killed in the eruption while observing the post six miles (10 km) away on the morning of May 18, 1980. He was the first to report the eruption, transmitting "Vancouver! Vancouver! This is it!" before he was swept away by a lateral blast.[2]
David A. Johnston Media
Johnston using a correlation spectrometer, which measures ultraviolet radiation as an indicator of the sulfur dioxide content of gases ejected from Mount St. Helens. Photographed on April 4, 1980.
Senior Photo of David A. Johnston in 1967 Senior Photo Yearbook
Johnston going into the Mount St. Helens crater to sample the lake. Photographed on April 30, 1980.
Johnston sampling the lake
David Johnston near crest of the bulge on the north side of Mount St. Helens, 17 May 1980 (USGS) cropped 2
Mount St. Helens 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 four months after the eruption, photographed by Harry Glicken from approximately the same location as the earlier picture. In the intervening period, the volcano had erupted, killing Johnston and approximately 60 others, devastating the landscape.
Johnston's Coldwater II observation post was in the path of the blast when the north side of Mount St. Helens collapsed.
Johnston Ridge Observatory (JRO) in December 2005
Sign showing the full and official name of the David A. Johnston Cascades Volcano Observatory (CVO)
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References
- ↑ "Volcanologists erupting over St. Helens". Spokesman-Review ((Spokane, Washington)): A17. May 4, 1980. https://news.google.com/newspapers?id=_1VOAAAAIBAJ&sjid=Re4DAAAAIBAJ&pg=7108%2C1974454.
- ↑ "Workers may have found body of man buried by volcano ash". Moscow-Pullman Daily News ((Idaho-Washington)): 5A. June 29, 1993. https://news.google.com/newspapers?id=zgwkAAAAIBAJ&sjid=1tAFAAAAIBAJ&pg=3835%2C2980629.
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