For decades, volcanologists believed that the primary trigger for explosive eruptions was a drop in pressure as magma rises toward the surface. When pressure falls, gases dissolved deep within the ...

How do volcanoes work? What happens beneath their surface? What causes the vibrations—known as tremor—that occur when magma or gases move upward through a volcano's conduits? Professor Dr. Miriam ...

The properties of the magma inside a volcano affect how an eruption will play out. In particular, the viscosity of this molten rock is a major factor in influencing how hazardous an eruption could be ...

Scientists are planning to drill into an Iceland volcano in the hunt for near-unlimited energy. The project, helmed by the Krafla Magma Testbed (KMT) organization, is set to start drilling into a ...

Over the past several months, periods of increased earthquake activity and ground deformation in the summit region of Kilauea volcano indicate that magma is accumulating beneath the surface. Where ...

Popocatépetl emerged in the crater of other volcanoes in its current form more than 20,000 years ago and has been active ...

Gabi Laske is a professor of geophysics at the University of California—San Diego. Hawaii's Mauna Loa, the world's largest active volcano, began sending up fountains of glowing rock and spilling lava ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Though immensely powerful, volcanoes are not always spewing hot ...

Magmatic activity deep beneath the Yellowstone Supervolcano may be shifting in a northeasterly direction. This is the conclusion of a new study by researchers from the United States Geological Survey ...