The dome is in the world's largest class of post-caldera volcano, with a volume of over 32 cubic kilometers. It is possible that currently a giant magma buildup may exist under the Kikai Caldera.

The latest research -- published Friday in the journal Science Advances -- a giant lava dome has developed since the volcano's massive eruption some 7,300 years ago.

A giant undersea caldera near Japan hosts a lava dome made from 8 trillion gallons of molten rock. The dome, which is 6.2 miles (10 kilometers) wide and 1,968 feet (600 meters) tall, is solid rock ...

The last caldera-forming eruption at Yellowstone “was much more complex than previously thought,” according to the annual report about activity at the supervolcano ...