An assessment of expectable kinds of future eruptions and their possible effects on human life and property.

An assessment of expectable kinds of future eruptions and their possible effects on human life and property.

An assessment of expectable kinds of future eruptions and their possible effects on human lives and property based on the eruptive behavior of volcanoes in California during the last 10,000 years.

The eruptive behavior of Mount Shasta during the last 10,000 years forms the basis for an assessment of the probable kinds and scales of future eruptions, and their potential effects on people and property.

Volcanic eruptions are common, with more than 50 volcanic eruptions in the United States alone in the past 31 years. These eruptions can have devastating economic and social consequences, even at great distances from the volcano. Fortunately many eruptions are preceded by unrest that can be detected using ground, airborne, and spaceborne instruments. Data from these instruments, combined with basic understanding of how volcanoes work, form the basis for forecasting eruptionsâ€"where, when, how big, how long, and the consequences. Accurate forecasts of the likelihood and magnitude of an eruption in a specified timeframe are rooted in a scientific understanding of the processes that govern the storage, ascent, and eruption of magma. Yet our understanding of volcanic systems is incomplete and biased by the limited number of volcanoes and eruption styles observed with advanced instrumentation. Volcanic Eruptions and Their Repose, Unrest, Precursors, and Timing identifies key science questions, research and observation priorities, and approaches for building a volcano science community capable of tackling them. This report presents goals for making major advances in volcano science.

A riveting history of the Mount St. Helens eruption that will "long stand as a classic of descriptive narrative" (Simon Winchester). For months in early 1980, scientists, journalists, sightseers, and nearby residents listened anxiously to rumblings in Mount St. Helens, part of the chain of western volcanoes fueled by the 700-mile-long Cascadia fault. Still, no one was prepared when an immense eruption took the top off of the mountain and laid waste to hundreds of square miles of verdant forests in southwestern Washington State. The eruption was one of the largest in human history, deposited ash in eleven U.S. states and five Canadian providences, and caused more than one billion dollars in damage. It killed fifty-seven people, some as far as thirteen miles away from the volcano’s summit. Shedding new light on the cataclysm, author Steve Olson interweaves the history and science behind this event with page-turning accounts of what happened to those who lived and those who died. Powerful economic and historical forces influenced the fates of those around the volcano that sunny Sunday morning, including the construction of the nation’s railroads, the harvest of a continent’s vast forests, and the protection of America’s treasured public lands. The eruption of Mount St. Helens revealed how the past is constantly present in the lives of us all. At the same time, it transformed volcanic science, the study of environmental resilience, and, ultimately, our perceptions of what it will take to survive on an increasingly dangerous planet. Rich with vivid personal stories of lumber tycoons, loggers, volcanologists, and conservationists, Eruption delivers a spellbinding narrative built from the testimonies of those closest to the disaster, and an epic tale of our fraught relationship with the natural world.