It appears that these magma bodies exist beneath volcanoes over their whole lifetime, not just during an active state.' ...

One of the most active volcanoes in the world sits just a few hundred miles off the U.S. West Coast, and some scientists ...

One of the most active volcanoes in the world sits just a few ... which is like what's under Hawaii or Iceland," he continued. A "hotspot," Chadwick explains, is a point source of extra magma ...