Baluan is a

stratovolcano A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and per ...

Baluan Island Baluan Island (formerly known as Saint Patrick Island) is the southernmost island of the Admiralty Islands group which makes up the majority of Manus Province in Papua New Guinea. It belongs to the Pam Islands, an island subgroup to the south of ...

in the

Admiralty Islands The Admiralty Islands are an archipelago group of 18 islands in the Bismarck Archipelago, to the north of New Guinea in the South Pacific Ocean. These are also sometimes called the Manus Islands, after the largest island. These rainforest-co ...

. The volcano is considered dormant, though warm springs are present on the island and in 1931 there were unconfirmed reports of an active submarine vent nearby.

References

Stratovolcanoes of Papua New Guinea Pleistocene stratovolcanoes {{volcano-stub