BBC6 年
Case study: Mt. St Helens 1980
A very common case study for volcanoes is the eruption of Mount St Helens in the USA in 1980. Other case studies include the eruption of Mount Etna in Sicily in 1974 and Heimaey eruption in ...
Mount St. Helens is recharging, earthquakes peaked in June
350 earthquakes at Mount St. Helens since February is a sign that new magma is moving into the volcano according to USGS. On ...
PBS4 年
Mt. St. Helens: Back From the Dead
One of the most violent natural disasters of our time, the colossal eruption of Mt. St. Helens in 1980 blasted away an entire mountainside. Over 200 square miles of pristine forest were buried ...