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Oiau (Dawson Strait Group) Volcano

Updated: May 24, 2024 21:54 GMT -
pyroclastic cone 400 m / 1,1312 ft
Papua New Guinea, -9.69°S / 150.86°E
Current status: normal or dormant (1 out of 5)

Oiau is one of 3 volcanic centers of the Dawson Strait volcanic group. It is located on the SE end of Fergusson island, on the peninsula between Kedidia Bay and Numanuma Bay. The volcano consists of a composite cone with a summit crater and has produced an obsidian lava flow of possible Holocene age.

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Typical eruption style: effusive
Oiau (Dawson Strait Group) volcano eruptions: unknown

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Background

Dawson Strait Group volcano
The Dawson Straits, located between eastern Fergusson and western Normanby Islands in the D'Entrecasteaux island group, contains a volcanic field with several volcanic centers that define a possible partly submerged caldera.
There have been no historical eruptions from this center, but morphology suggests an extremely young age for some lava flows, and the area displays vigorous thermal activity. The most prominent volcanic centers are Mounts Lamonai and Oiau, located about 10 km apart on the SW tip of Fergusson Island.

Latest satellite images

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