The Cataclysmic 1991 Eruption of Mount Pinatubo, Philippines

This United States Geological Survey (USGS) on-line publication highlights the events and aftermath of the June 15, 1991 eruption of Mt. Pinatubo in the Philippines, which was the second-largest volcanic eruption of the 20th century. This report discusses the precursors to the 1991 eruption including the occurrence of earthquakes, dome growth and steam emissions. The explosive eruptions from June to September of 1991 are summarized, especially with respect to the impacts of this event on global temperatures and population displacement. Educational levels: High school, Middle school, Undergraduate lower division