Learn about how volcanoes are formed and the ways they erupt Chiara Maria Petrone, Roberto Scandone, and Alex Whittaker On ...

So-called effusive eruptions spew out relatively fast-flowing lava which contains little gas and little crystalline material, and exits the vent at a comparatively stately rate.

In effusive eruptions, they argue, continuous, repeated fragmentation during the magma's rise to the surface would break gas bubbles and allow the release of significant amounts of gas before the ...

Yellowstone National Park's geological history is one of the most intensely studied in North America. A new geologic unit ...

The Costa Rican expert in geophysics and seismology shares his perspective on earthquake prediction and the imminent eruption ...

In quiet, effusive eruptions, they assumed, the molten rock either didn’t contain much dissolved gas or the bubbles found a way to escape the magma without blowing it apart.

The eruption began at about 1 a.m. ET along a nearly two-mile fissure northeast of Mount Sundhnukur, ... effusive” eruption will disrupt aviation because it produces only a tiny amount of ash. ...

In effusive eruptions, they argue, continuous, repeated fragmentation during the magma's rise to the surface would break gas bubbles and allow the release of significant amounts of gas before the ...

Mount Lewotobi's eruption has directly impacted several villages in the Wulanggitang District such as Nawakote, Klatanlo, and ...

Dramatic video from Iceland's coast guard showed fountains of lava soaring more than 165 feet into the darkened skies.