Vulcan is a pumice cone in Papua New Guinea. It is a sub-vent of the Rabaul caldera and lies on its western rim. Its most recent eruption was in 1994, when it and another vent, Tavurvur, forced the city of Rabaul to be temporarily abandoned and the local administrative centres of East New Britain Province to be moved to a new capital, Kokopo. Today, the sl…Vulcan is a pumice cone in Papua New Guinea. It is a sub-vent of the Rabaul caldera and lies on its western rim. Its most recent eruption was in 1994, when it and another vent, Tavurvur, forced the city of Rabaul to be temporarily abandoned and the local administrative centres of East New Britain Province to be moved to a new capital, Kokopo. Today, the slopes of Vulcan are now forested, as a result of dormancy since 1994.