A new 3-D model of a volcanic explosion, based on the 1980 eruption of Mount St. Helens, could help researchers understand some of the mysteries of volcanic blasts. The model could enhance scientists' ...

These ghostly hoops have been spotted above volcanic events around the world. But how they form has long been a mystery.

Emily Schwing: In 1912 a volcano in Alaska more than blew its top. Known as Novarupta, it was responsible for the most powerful volcanic eruption of the 20th century. Kristi Wallace: The reason we ...

When individuals hear volcanoes, they tend to envision blazing eruptions blasting into the air. However, volcanoes can also collapse sideways, with their sides, or flanks, collapsing. Such a collapse ...

New research has provided fresh insight into how huge volcanic ash plumes, which can critically disrupt aviation and cause major impact on the ground, are transported in the atmosphere. New research, ...

The Hidden Climate Power of Sulfur Dioxide When massive volcanic eruptions occur, they inject millions of tons of sulfur ...

Some 66 million years ago, the world was dominated by dinosaurs, and then suddenly, it wasn't. The scientific consensus is that a catastrophic asteroid impact ended the Cretaceous era when it wiped ...

A new 3-D model that realistically mimics the 1980 eruption of Mount St. Helens is helping scientists understand the dynamics of such blasts and may help them map potential blast flows at dangerous ...

An active underwater volcano 300 miles off the Oregon Coast that was predicted to erupt in 2025 is now expected to erupt ...