Magma from the mantle finds its way to the surface, where it erupts as lava or ash and gas—sometimes in spectacular spurts, ...

The earthquakes are not currently a cause for concern, and do not indicate an impending eruption, the U.S. Geological Survey ...

Mount St. Helens, one of the most studied volcanoes in the United States, is showing signs of renewed activity as its magma chamber begins recharging. This update covers the recent earthquake ...

The Mount St. Helens visitor center is reopening its doors with the first major renovations since it opened in 1986.

Michael Lienau, part of the first film crew documenting the aftermath of the Mount St. Helens, said the experience was a "living nightmare." ...

But since Mount St. Helens, because of all the lessons that they learned from that eruption, they've actually identified hundreds of volcanoes all over the world, some on other planets, that have ...

Remembering the deadly Mount St. Helens eruption 45 years later Mount St. Helens erupted 45 years ago, causing the deadliest volcanic disaster in U.S. history. Adel Toay, Drew Mikkelsen, Leah ...

In 1980, Mount St. Helens erupted, killing dozens and forever changing how the US monitors earthquakes. The volcano is still active but not erupting.

Explore how the landscape of southwest Washington still bears the scars of the Mount St. Helens eruption 45 years later, reshaping its beauty.