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 ...

Cancel anytime. On May 18, 1980, Mount St. Helens erupted covering the region in volcanic ash. The north face of the mountain collapsed and started an avalanche that scoured about 150 square miles ...

When Mount St. Helens erupted in 1980, lava incinerated anything living ... On one side of the mountain was an old-growth forest. Ash from the volcano blanketed the trees, trapping solar radiation ...

Mount Saint Helens ... erupted in 1980 and had its ash reach Montana, has been showing major signs of constant activity ...

A man who ended up being consumed by a volcanic eruption left behind some devastating final words as he watched it come ...

In fact, according to a new report from the University of California, this particular gopher-volcano encounter proved to be ...

After the volcanic eruption of 1980, scientists released the burrowing ... With pressure suddenly removed from the magma below, Mount St. Helens spewed lava, ash and debris in the southwestern ...

Until Mount St. Helens blew in 1980, Lassen's eruption was the most recent volcanic explosion in the lower 48 states. Ecologists now study Lassen's landscape to see what the future may bring to ...

Left: An aerial view of the 600-foot lava dome in the crater of Washington's Mt. St. Helens, as seen between the May and July eruptions in 1980.

An curved arrow pointing right. Mount St. Helens has recently been swarming with geological activity, which could mean the giant American volcano is gearing up for its next big eruption.