Lassen Peak Erupts мощfully, Only 20th-Century Contiguous U.S. Volcano Eruption, May 22, 1915
Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century. Date: May 22, 1915 Read more on Wikipedia → 📅 Other events on May 22 📅 Events on this day in 1915 📅 On This Day (Today)