David A. Johnston was killed just hours after his last ever picture was taken. The volcanologist from Chicago, US was once one of the principal scientists on the USGS monitoring team. And his interest ...

Snowmobilers, including one with a serious leg injury, were rescued following an avalanche on Mount St. Helens on Feb. 17.The ...

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 ...

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

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 ...

PORTLAND, Ore. (KOIN) — After an avalanche on Mt. St. Helens left one snowmobiler stuck and another injured, a fellow snowmobiler managed to aid them before calling in a rescue group on Monday.

This striking satellite photo shows the unusual shape of Spirit Lake, which was transformed into a giant anatomically inaccurate heart by the explosive eruption of Mount St. Helens in 1980.

A snowmobiler with an injured leg was rescued the afternoon of Monday Feb. 17 after an avalanche on Mount St. Helens, ...

Rescuers saved three snowmobilers who triggered an avalanche on Mount St. Helens. One man suffered a severe leg injury, but ...