Though the latest eruption has been sudden, the student movement has deep roots.
These were formed in the last 2.2 million years, with the latest eruption having been about 2,350 years ago.
The latest eruption produced a lava flow at the southern tip of the island around 1550.
The latest known eruption took place in 1564.
This latest pedophile eruption is not the first, not by a long shot.
There are still some 4,000 inhabitants in Rabaul, down from over 17,000 before the latest volcanic eruption.
It is not thought there was any damage caused by the latest eruption.
The latest eruption lasted only 1 day, and occurred on December 8, 1994.
The latest eruption is estimated to have been between 320,000 and 100,000 years ago.
The latest eruptions on this island occurred in the 1970s.