Mount Pinatubo: Predicting a Volcanic Eruption | PBS LearningMedia

Mount Pinatubo Overview, Eruption & Facts

Learn About the 1991 Mount Pinatubo Volcanic Eruption

The Cataclysmic 1991 Eruption of Mount Pinatubo, Philippines The second-largest volcanic eruption of this century, and by far the largest eruption to affect a densely populated area, occurred at Mount Pinatubo in the Philippines on June 15, 1991. The eruption produced high-speed avalanches of hot ash and gas, giant mudflows, and a cloud of volcanic ash hundreds of miles across. The impacts of the eruption continue to this day. Precursors to the 1991 Eruptions On July 16, 1990, a magnitude 7.8 ea