What volcano famously erupted on May 18, 1980?
Cascades Volcano Observatory Cascades Volcano Observatory The David A. Johnston Cascades Volcano Observatory (CVO) is a volcano observatory that monitors volcanoes in the northern Cascade Range. It was established in the summer of 1980, after the eruption of Mount St. Helens. The observatory is named for United States Geological Survey (USGS) volcanologist David A. Johnston, who was swept away in the Mount St. Helens eruption on the morning of May 18, 1980. The observatory's current territory covers Oregon, Washington, and Idaho. The Cascade Range's extent includes northern California, and Cascade volcanoes in that state, such as Mount Shasta and Lassen Peak, previously fell
Pichincha Volcano Guagua Pichincha and looked down into the crater of the volcano, which had last erupted in 1660. La Condamine compared what he saw to the underworld. On May 24, 1822, General Sucre's southern campaign in the Spanish-American war of independence came to a climax when his forces defeated the Spanish colonial army on the southeast slopes of this volcano. The engagement, known as the Battle of Pichincha, secured the independence of the territories of present-day Ecuador. Pichincha Volcano Pichincha is an active stratovolcano in the country of Ecuador, whose capital Quito wraps around its eastern slopes. The two highest peaks