Philosophy
Dwight R. Crandell
January 25th, 1923 to April 6th, 2009
Dwight R. "Rocky" Crandell, a U.S. Geological Survey volcanologist whose persistent tracking of deep layers of mud led to a pioneering reassessment of volcano hazards in the Pacific Northwest, died April 6 at a hospice in Wheat Ridge, Colo., from a heart attack. He was 86.
His death was confirmed by James W. Vallance, a research geologist and friend of Crandell at the USGS Cascades Volcano Observatory in Vancouver, Wash.
In 1978, Crandell and his longtime scientific partner, Donal R. Mullineaux, warned in a report that the Mt. St. Helens volcano 150 miles southeast of Seattle could erupt within 20 years. It did, in a furious blast in May 1980, resulting in 57 deaths.
Crandell and Mullineaux's studies began in the early 1950s, while assigned to map the Puget Sound lowlands southeast of Seattle, where the men overturned what was then the conventional wisdom that the area's landscape had been shaped mainly by glaciers.
Filling notebooks with observations of deep layers of mud beneath the surface in Washington state, then tracing the mud for years, they eventually found it had come from high on the slopes of 14,411-foot Mt. Rainier, the tallest volcano in the 48 contiguous states, previously thought to pose little danger.
They proved that about 5,600 years earlier, the summit of Mt. Rainier had collapsed in an eruption that caused a landslide massive enough to reach Puget Sound near Tacoma, filling some valleys up to 400 feet deep. That awakened the recognition that a similar event could endanger hundreds of thousands of people living atop the ancient mudflows.
The approach used by Crandell and Mullineaux formed the basis of today's volcano hazard assessment methodology and led to discoveries of the violent past and danger posed by Mt. St. Helens. Since the volcano's 1980 eruption, mudflow warning systems have been installed nearby and evacuation drills are held.
Crandell was born Jan. 25, 1923, in Galesburg, Ill., and earned his "Rocky" nickname while studying geology in college. He received a bachelor's from Knox College in Galesburg and a doctorate from Yale University. In between, he served in the Army during World War II, fighting in Germany as a lieutenant in a mortar platoon.
He began working for the USGS in 1951 and for most of his career was based near Denver. He did most of his fieldwork on Pacific Northwest ash falls, mudflows and lava extrusions in the summer, then spent winters analyzing the rock and soil samples gathered earlier.
"Rocky was a consummate field geologist," Dan Miller, a USGS volcanologist, told the Seattle Times. "He was willing to hike miles and miles to get to an outcrop, and go back day after day."
Crandell retired from the USGS in the mid-1980s but continued to study Mt. St. Helens.
Survivors include two daughters, three grandchildren and a great-grandchild. His wife, Marion, died in 2004. A son died in 1965.
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Philosophy
Deceased--Dwight R. Crandell
Dwight R. CrandellJanuary 25th, 1923 to April 6th, 2009
"Dwight R. Crandell dies at 86; volcanologist helped predict 1980 eruption of Mt. St. Helens"
April 19TH, 2009
Los Angeles Times
April 19TH, 2009
Los Angeles Times
Dwight R. "Rocky" Crandell, a U.S. Geological Survey volcanologist whose persistent tracking of deep layers of mud led to a pioneering reassessment of volcano hazards in the Pacific Northwest, died April 6 at a hospice in Wheat Ridge, Colo., from a heart attack. He was 86.
His death was confirmed by James W. Vallance, a research geologist and friend of Crandell at the USGS Cascades Volcano Observatory in Vancouver, Wash.
In 1978, Crandell and his longtime scientific partner, Donal R. Mullineaux, warned in a report that the Mt. St. Helens volcano 150 miles southeast of Seattle could erupt within 20 years. It did, in a furious blast in May 1980, resulting in 57 deaths.
Crandell and Mullineaux's studies began in the early 1950s, while assigned to map the Puget Sound lowlands southeast of Seattle, where the men overturned what was then the conventional wisdom that the area's landscape had been shaped mainly by glaciers.
Filling notebooks with observations of deep layers of mud beneath the surface in Washington state, then tracing the mud for years, they eventually found it had come from high on the slopes of 14,411-foot Mt. Rainier, the tallest volcano in the 48 contiguous states, previously thought to pose little danger.
They proved that about 5,600 years earlier, the summit of Mt. Rainier had collapsed in an eruption that caused a landslide massive enough to reach Puget Sound near Tacoma, filling some valleys up to 400 feet deep. That awakened the recognition that a similar event could endanger hundreds of thousands of people living atop the ancient mudflows.
The approach used by Crandell and Mullineaux formed the basis of today's volcano hazard assessment methodology and led to discoveries of the violent past and danger posed by Mt. St. Helens. Since the volcano's 1980 eruption, mudflow warning systems have been installed nearby and evacuation drills are held.
Crandell was born Jan. 25, 1923, in Galesburg, Ill., and earned his "Rocky" nickname while studying geology in college. He received a bachelor's from Knox College in Galesburg and a doctorate from Yale University. In between, he served in the Army during World War II, fighting in Germany as a lieutenant in a mortar platoon.
He began working for the USGS in 1951 and for most of his career was based near Denver. He did most of his fieldwork on Pacific Northwest ash falls, mudflows and lava extrusions in the summer, then spent winters analyzing the rock and soil samples gathered earlier.
"Rocky was a consummate field geologist," Dan Miller, a USGS volcanologist, told the Seattle Times. "He was willing to hike miles and miles to get to an outcrop, and go back day after day."
Crandell retired from the USGS in the mid-1980s but continued to study Mt. St. Helens.
Survivors include two daughters, three grandchildren and a great-grandchild. His wife, Marion, died in 2004. A son died in 1965.
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I don't know whether Iceland's Eyjafjallajökull volcano got its name when the geologist in charge of coming up with a name for it got up from his desk to get some coffee or find some inspiration, and while pondering on the majesty of the volcano's...
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Robert Helliwell September 2nd, 1920 to May 3rd, 2011 "Robert Helliwell, electrical engineer who expanded understanding of Earth's atmosphere, dies at 90" Stanford electrical engineer Robert Helliwell used radio waves to figure out the structure of...
- Deceased--dwight Armstrong
Dwight Armstrong August 29th, 1951 to June 20th, 2010 Vietnam, politics, frustration...something went wrong and Robert Fassnacht, a physics researcher, died. "Dwight Armstrong, Who Bombed a College Building in 1970, Dies at 58" by Margalit Fox June 26th,...
- Krakatoa In 1883
Recent natural phenomenon [Haiti, Chile, Indonesia, India] do take many lives and destroy property, but the 1883 volcanic eruption of Krakatoa punched a bigger bang with far greater effects. SCIENTIFIC AMERICAN SUPPLEMENT NO. 841 NEW YORK, FEBRUARY...
- Deceased--george Shor Jr.
George Shor Jr. June 8th, 1923 to July 3rd, 2009 "George Shor Jr. dies at 86; Scripps geophysicist studied the ocean floor" Shor's work helped lay the foundation for the theory of tectonic plates and continental drift. by Thomas H. Maugh II July...