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The Deadly Eruption of Mount St. Helens

5/21/2016

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Jim Whiting

Nonfiction is the new black

​     Early in 1980, Mt. St. Helens in southwestern Washington state began showing signs that it was about to erupt. Part of the state’s Cascade Range, the mountain was an active volcano that had been dormant for 123 years.  

      The possibility of seeing the “fireworks” prompted many people to head for the mountain. The sightseers included Ron and Barbara Seibold and their two children, who parked about 12 miles north of the mountain. That was well beyond two danger zones that scientists had established. 

      En route to the mountain, the children—Kevin, aged 7, and his 9-year-old sister Michelle—made a cassette tape. They asked questions and the parents answered. “They were goofing around—asking whether or not they would see lava coming out of the mountain,” said a state emergency management official. “One asked if it was dangerous, and both parents cheerfully reassured their kids that they’d be safe.” 

      They weren’t. 

      Exploding on May 18 with a fury far beyond what scientists had expected, the blast generated the largest landslide in U.S. history and flattened millions of trees. Uncounted tons of ash rose as high as 15 miles into the atmosphere.

      The Seibolds never had a chance. Ash almost instantly buried their vehicle. They suffocated. 

     The eruption claimed 53 more people, making it the deadliest-ever on the US mainland. One was Harry Truman, who had run the inn at nearby Spirit Lake for more than 50 years. Truman had become somewhat of a folk hero for his refusal to move despite the danger.

      Twenty-year-old newlyweds Christy and John Killian were camping nine miles from the volcano. Christy died of massive head injuries, her arm around her pet poodle. John and the couple’s retriever were never found.

      Terry Crall and Karen Varner, both 21, died when a tree fell onto their tent, 14 miles away. Four people outside the tent were unharmed.

     So were researchers Keith and Dorothy Stoffel, flying a small airplane less than 1,300 feet above the summit at the moment of the eruption. A cloud laced with lightning bolts billowed toward them.  They managed to outrun it.

      Today, much of the vegetation destroyed by the blast has returned. But the mountain—once compared in its graceful contours to Mt. Fuji in Japan—lost 1,300 feet of its height. Its former symmetrical cone shape is now topped by a horseshoe-shaped crater which stands as a mute reminder of the catastrophic eruption.
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Mount St. Helens the day before the 1980 eruption, which removed much of the northern face of the mountain, leaving a large crater. Harry Glicken, USGS
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Mount St. Helens erupted on May 18, 1980, at 8:32 Pacific Daylight Time
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The ash-cloud stem shown in this composite photo of the May 18 eruption is 10 miles wide, and the mushroom top is 40 miles wide and 15 miles high.
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The top of Mount St. Helens two years after the eruption. The removal of the north side of the mountain reduced St. Helens' height by about 1,300 feet and left a crater 1 mile to 2 miles wide and a half mile deep. The eruption killed 57 people, nearly 7,000 big game animals (deer, elk, and bear), and an estimated 12 million fish from a hatchery. It destroyed or extensively damaged more than 200 homes, 185 miles of highway, and 15 miles of railways.

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Volcanoes have been erupting for all of recorded history. More than 3,500 years ago, people on the Greek island of Calliste had a very good life.  There was only one problem: Calliste was actually a volcano. Around 1650 BCE, the volcano erupted, blowing out the center of the island and creating a large bay. What was left of Calliste was buried under a thick layer of volcanic ash. Though the island was deserted for many years, people eventually returned. Several centuries ago, it was renamed Santorini. The island has reclaimed its beauty and allure, but the volcano below continues to reshape this little plot of land in the Mediterranean Sea.  For more information on Jim Whiting's book on the Santorini eruption, click here.
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​Have you ever heard of the butterfly effect, the idea that one small change can bring about big change over time?  Dorothy Hinshaw Patent will explain tomorrow.

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