The eruption of May 18, 1980, reduced the summit of Mount St. Helens by 1,300 feet. But that was not the only geologic event that has reduced its profile. During its eruptions from 2004 to 2008, Mount ...

The United States Geological Survey (USGS), back in 2005, released a comprehensive and somewhat groundbreaking report on the volcanic hazards that people face in the US. Now, just this week, an ...

The volcanoes are surrounded by dense forests and with no roads nearby, so it’s necessary to backpack to the interior of the volcanoes and even take a helicopter in some instances. While working on a ...

There are 161 active volcanoes in the United States, and the U.S. Geological Survey says 18 of them pose a "very high threat." The USGS released a report this week, its first since 2005, that ...