Volcanic Eruption 火山爆發
Mount St. Helens 聖海倫火山
Mount St. Helens is most famous for its catastrophic eruption on May 18, 1980, at 8:32 am PDT which was the deadliest and most economically destructive volcanic event in the history of the United States.(Skamania County, Washington,USA)
Mount St. Helens is most famous for its catastrophic eruption on May 18, 1980, at 8:32 am PDT which was the deadliest and most economically destructive volcanic event in the history of the United States.(Skamania County, Washington,USA)
