how did the human get affected by the 1980 eruption?
Fifty-seven people were killed; Harry R. Truman and David A. Johnston
Mount St. Helens
Fifty-seven people were killed during the eruption. Had the eruption occurred one day later, when loggers would have been at work, rather than on a Sunday, the death toll could have been much higher.

Eighty-three-year-old Harry R. Truman, who had lived near the mountain for 54 years, became famous when he decided not to evacuate before the impending eruption, despite repeated pleas by local authorities. His body was never found after the eruption.

Another victim of the eruption was 30-year-old volcanologist David A. Johnston, who was stationed on the nearby Coldwater Ridge.
mount st helens is on what type of plate boundary Cascade Volcanic Arc where is it located? Skamania County, Washington, in the Pacific Northwest region of the United States. describe the geographical aspect of the former county? Its total area; (1.7%) is water. 90% of Skamania is forested and 80% is a part of Gifford Pinchot National Forest. in which state is the county? Washington
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Mount St. Helens [SEP] Human impact from the 1980 eruption
Fifty-seven people were killed during the eruption. Had the eruption occurred one day later, when loggers would have been at work, rather than on a Sunday, the death toll could have been much higher. Eighty-three-year-old Harry R. Truman, who had lived near the mountain for 54 years, became famous when he decided not to evacuate before the impending eruption, despite repeated pleas by local authorities. His body was never found after the eruption. Another victim of the eruption was 30-year-old volcanologist David A. Johnston, who was stationed on the nearby Coldwater Ridge. Moments before his position was hit by the pyroclastic flow, Johnston radioed his famous last words: "Vancouver! Vancouver! This is it!" Johnston's body was never found.