W hen Mount St Helens erupted in 1980, the resulting lava, ash, and debris turned the landscape barren for miles around. It ...

“Over the past several months, small magnitude earthquakes have been located at Mount St. Helens,” the Cascades Volcano Observatory said. “The seismicity is similar to what was observed at ...

have been observed in the past at Mount St. Helens and at other volcanoes and can continue for many years without an eruption ...

The popular Johnston Ridge Observatory that looks over Mount St. Helens’ gaping crater has been closed since 2023 after a landslide took out a bridge on the windy road leading there. State ...

Johnston Ridge Observatory, a popular tourist destination which looks over Mount St. Helens' gaping crater, has been closed since 2023 after a landslide took out a bridge on the road leading there.

Nearly 45 years after Mount St. Helens’ eruption sent almost 90 billion cubic feet of debris into the upper Toutle Valley, millions of tons of sediment still pour into the Cowlitz River each year.

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 ...

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 ...

Nearly 45 years after Mount St. Helens’ eruption sent almost 90 billion cubic feet of debris into the upper Toutle Valley, millions of tons of sediment still pour into the Cowlitz River each year.