Volcanoes can behave in strikingly different ways, even when they appear nearly identical. Some release slow, steady lava flows.

Volcanoes often look deceptively quiet until the moment they unleash towering plumes of ash and gas, yet the precise switch that turns a gentle rumble into a devastating blast has remained stubbornly ...

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma – and when. Until now, it was thought that gas bubbles were formed primarily when the ambient pressure ...

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma—and when. Until now, it was thought that gas bubbles were formed primarily when the ambient pressure dropped ...

It is generally assumed that volatile-rich magmas erupt predominantly effusively at water depths of several hundred meters, as the high hydrostatic pressure suppresses explosive activity. This view is ...

A powerful swarm of earthquakes in January suggested one of Iceland’s giant “ice volcanoes” may be awakening after a decade of slumber. In the months that followed, more earthquakes have rocked the ...