Decades after Mount St. Helens' eruption sent almost 90 billion cubic feet of debris into the upper Toutle Valley, sediment ...

A teenager when he began scuba diving in the shadow of Mount St. Helens, he remembers the lake ... growing a new lava dome in its crater, and captivating sightseers and geologists.

“High rates of seismicity, interpreted as recharge, have been observed in the past at Mount St. Helens and at other volcanoes ...

The Mount St. Helens Visitor Center on Spirit Lake Highway is set to undergo a significant makeover. According to officials, ...

When Mount St. Helens erupted in 1980, it blew away the top 1,300 feet (400 m) of the mountain — about the height of the Empire State Building. ts can use their trunk like a snorkel in the water.

MOUNT ST. HELENS, Wash. (KATU) — Snowmobilers, including one with a serious leg injury, were rescued following an avalanche on Mount St. Helens on Feb. 17. The incident occurred when three ...

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 ...

The snowmobiler was riding with other people on Feb. 17 when two of them got stuck in deep snow on Mount St. Helens, rescuers said. They had decided to go home once freeing themselves because it ...