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 ...

A teenager when he began scuba diving in the shadow of Mount St. Helens, he remembers the lake as it was before the May 1980 eruption, before the top 1,300 feet of the volcano—more than three ...

A geologist from Eastern Washington State College returned from a research trip and warned that one of Washington’s volcanoes ...

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

From how ashfall smells to how you can help affected wildlife, we asked experts across the state about the things on your ...

The Columbia Theatre in Longview, Washington, is celebrating its centennial. Theater officials say the 1980 eruption of Mount ...

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 ...

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 ...

Alaska's Mount Spurr volcano is close to erupting ... Likelihood: While Mount St. Helens is expected to erupt again in our lifetimes, "neither a large debris avalanche nor a major lateral blast ...

Nearly 45 years after Mount St. Helens’ eruption sent almost 90 billion ... Mountain runoff carries ashen remains of what was the volcano’s peak into the North Fork Toutle River and down ...

Mount St. Helens erupted 45 years ago in May ... prompting a new plan in case of a future volcanic eruption.

Mount Saint Helens, Mount Adams, Mount Baker, and Glacier Peak are four of the active volcanoes in Washington state. The fifth, located less than 70 miles from Seattle, is Mount Rainier.