Ask a volcanologist anything you want to know about volcanoes!

Volcanoes! Whether we're talking about Pompeii, why some volcanoes in Indonesia are erupting with blue lava, or the mechanics of supervolcanoes, they're totally fascinating. Today, we have a volcanologist in to answer your questions about volcanoes, eruptions, and their aftereffects. » 2/24/14 9:10am 2/24/14 9:10am

A major step to predicting when supervolcanoes will explode

Scientists have learned that massive caldera volcanoes, like the one stewing beneath Yellowstone, are ruled by geological processes far different than the ones governing conventional volcanoes. These massive reservoirs of magma can explode spontaneously — an important piece of insight that can help us predict a future… » 1/06/14 2:20pm 1/06/14 2:20pm

New Type of Volcanic Eruption Produces Globs of Floating Molten Foam

A recent paper published in Nature Geoscience has proposed the existence of an entirely new kind of volcanic eruption, which geologists are now calling a 'tangaroan' eruption. Rather than being either explosive or effusive, this newly documented type of eruption involves the slow release of magma that generates a kind … » 1/23/13 10:53am 1/23/13 10:53am