The science of volcanology is based on evidence gleaned from the eruptions of the past 200 years. Going backwards from the 1991 medium sized eruption of Pinatubo in the Philippines and 1981 eruption of El Chicon in Mexico, Dawson tells his story of how v
The science of volcanology is based on evidence gleaned from the eruptions of the past 200 years. Going backwards from the 1991 medium sized eruptio...