Santorini caldera, volcano. Credit: Bongo Vongo / CC-BY-SA-2.0 Renowned seismologist Costas Synolakis claimed that the earthquakes rattling Santorini may indicate the expansion of the island’s ...

A “fascinating” eruption is approaching as a sleeping giant underwater volcano stirs with seismic activity near America’s west coast. The seismic activity of Axial Seamount, a submerged ...

Igneous rocks form when magma cools underground or erupts at the surface as lava. The magma rises into the Earth’s crust, where it can get trapped underground or erupt from volcanoes as molten lava.

Steep-sided, cone-shaped volcanoes are formed by alternating layers of lava and ash. Capable of explosive eruptions. Example: Mount Fuji (Japan), Mount St. Helens (USA). Small, steep volcanic ...

Not to worry, these volcanoes don’t involve lava. They are actually ice volcanoes! Wind sweeps across Lake Ontario sending waves toward the shore. Some of that water flies up through the cracks ...