Vulcan is a pumice cone in Papua New Guinea

Papua New Guinea

Papua New Guinea , officially the Independent State of Papua New Guinea, is a country in Oceania, occupying the eastern half of the island of New Guinea and numerous offshore islands...

. It is a sub-vent of the Rabaul caldera

Rabaul caldera

Rabaul caldera is a large volcano situated in East New Britain, Papua New Guinea. It derives its name from the town of Rabaul situated inside the caldera. The highest of its multiple peaks is ....

 and lies on the western rim of the larger feature. Its most recent eruption was in 1994, when in conjunction with another vent, Tavurvur

Tavurvur

Tavurvur is an active volcano that lies near Rabaul in Papua New Guinea. It is a sub-vent of the Rabaul caldera and lies on the eastern rim of the larger feature...

, the eruptions of Vulcan forced the abandonment of the city of Rabaul and the relocation of the local administrative centres of East New Britain Province, to a new capital, Kokopo

Kokopo

Kokopo is the capital of East New Britain in Papua New Guinea. The capital was moved from Rabaul in 1994 when the volcanoes Tavurvur and Vulcan erupted. As a result, the population of the town increased more than sixfold from 3,150 in 1990 to 20,262 in 2000....

.