US Geological Survey
Usgs: Fire and Mud, Mount Pinatubo
A chronicle of the eruption of Mount Pinatubo in the Philippines. Click on Fire and Mud Contents at the bottom of the first page to see the contents of this report.
PBS
Nova: Mystery of the Megavolcano
Learn about the 74,000 year old eruption of the Toba volcano which produced 670 cubic miles of magma. Compare its' dimensions to other famous eruptions to get an understanding of its enormous dimensions.