"We know virtually nothing about submarine volcanoes."
The volcano has the potential to turn deadly.
The global events happen way more often than scientists thought.
The magma under a long-ago supervolcano never heated up as thoroughly as scientists had assumed.
There's no way to know how many eruptions are in the cards.
The U.S. is advising against any visits to the volcano, warning that an eruption could disrupt flights.
Experts from U.K. and Japan warn that Sakurajima volcano could have its first major eruption since 1914.
The plant would be the first nuclear power station to reopen following the Fukushima disaster in 2011, despite warnings that nearby volcanoes show an increase in activity
The volcano is spewing lava as high as the Statue of Liberty, and flowing fast enough to cover the equivalent of a soccer pitch every eight minutes.