Left: A close-up of a crack in the volcanic surface of a cooled lava flow from the crater of Mt. St. Helens.

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

An curved arrow pointing right. Scientists are baffled as to where Mount St. Helens gets its lava from. Though the volcano is part of a cluster of volcanoes known as the North American Cascade Arc ...

When you hear the word volcano and Washington State you immediately think Mt. St. Helens. The 5.1 magnitude eruption on May ...

“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 ...

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 ...

Widely considered the most disastrous volcanic eruption in U.S. history, the event drastically altered the surrounding landscape. As the region slowly recovered, Mount St. Helens became a tourist ...

Redoubt—as well as many other famous volcanoes, including Mt. St. Helens and Mt. Vesuvius, are all andesitic volcanoes. Here, get to know the major features and products of an andesitic volcano ...