One of the most devastating volcanoes erupted 7,300 years ago — and scientists say it’s filling with magma again

Dubbed the Kikai caldera, this mostly-underwater caldera located south of Japan’s Ryuku Islands last erupted 7,300 years ago, ...

Kilauea episode 44: Volcano Warning, evacuations issued as softball-sized tephra seen near crater

Rangers evacuating the area reportedly saw softball-sized tephra chunks falling across the overlook at Kilauea Military Camp.

Yellowstone’s Dreaded Supervolcano Has an Unexpected Power Source, Study Says

Rather than a single giant chamber, the Yellowstone Caldera is made up of a complex system that includes a shallow magma ...