Earth's Dynamic Geosphere: Volcanoes Activity 4- Volcanic Hazards: Airborne Debris

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Earth's Dynamic Geosphere book cover
AGI/It's About Time

Preparing for the Chapter Challenge

How does your study of the movement and hazards of volcanic ash affect the volcano in California.

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Learn more about particle types

Ash, Tephra, Pumice, Scoria, etc. - USGS Cascades Volcano Observatory
Read a series of fact sheets to investigate further different types of volcanic particles. See a picture of a bear foot-print in volcanic ash.

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Learn more about distribution and hazards of volcanic ash

Volcanic Air Pollution - A Hazard in Hawaii
Hawaii serves as a good case study to demonstrate how the hazard of volcanic particles can spread over a wide range.

Volcanic Ash - Danger to Aircraft in the Northern Pacific
In 1989-1990, a series of eruptions of Redoubt Volcano in Alaska threatened airplane traffic throughout northern North America. Site includes several examples of the dangers volcanic eruptions can have on airplanes, even if the airplane is hundreds or thousands of miles from the volcano.

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Learn more about the volcanic explosivity index

The Volcanic Explosivity Index
Learn more about the classification system vulcanologists use to study volcanic eruptions.

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To stimulate the eruption of one of the three volcanoes, visit the following web site:

Volcanic Ash Forecast Transport and Dispersion

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