Axial Seamount is a shield volcano, meaning it erupts in a way that spreads lava ... rock above it. Scientists also recently discovered multiple magma reservoirs connected to the massive ...

Off the coast of American Samoa, an active underwater volcano towers above the seafloor, its upper crater the site of a ...

A budding islet created by the eruption of an underwater volcano appears to ... submerged through erosion due to the soft nature of the lava. Pumice was carried by the Kuroshio Current northward ...