18/05/2023
TODAY IN WEATHER HISTORY
On May 18, 1980, Mount St. Helens, located in Washington state, experienced one of the most catastrophic volcanic eruptions in the history of the United States. The eruption of Mount St. Helens was triggered by a massive earthquake that caused the north face of the mountain to collapse, unleashing a powerful lateral blast and a vertical eruption column. The eruption released a tremendous amount of energy, equivalent to 24 megatons of TNT, and resulted in the destruction of the surrounding landscape. The lateral blast, accompanied by a pyroclastic flow, devastated an area of about 230 square miles, leveling forests, melting snow and ice, and triggering massive mudslides. The eruption column rose to a height of 15 miles and deposited ash across several states, affecting air traffic and causing complete darkness in some areas. The eruption claimed the lives of 57 people, including geologists and loggers, and caused extensive damage to infrastructure, buildings, and the environment. Mount St. Helens' eruption serves as a poignant reminder of the immense power and destructive force that lies within our planet.