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The 'Tanga Islands' are an island group in Papua New Guinea, located northeast of New Ireland and part of the Bismarck Archipelago. The islands are the remnants of a stratovolcano which collapsed to form a caldera. Lif (283 m), Tefa (155 m), and Malendok (472 m) islands are on the caldera rim, while Bitlik and Bitbok islands are lava domes constructed near the center of the caldera.

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References

References

★ Global Volcanism Program: Tanga

★ Global Volcanism Program: Additional Report for Tanga