Geology and Minerals
Kuwae was a landmass that existed in the vicinity of Tongoa and was destroyed by volcanic eruption in the fifteenth century, probably through caldera subsidence. Its exact location is debated. A submarine caldera now known as the Kuwae caldera is a candidate, located between the Epi and Tongoa islands and cutting through the flank of the Tavani Ruru volcano on Epi and the northwestern end of Tongoa. Another candidate is a proposed caldera between Tongoa and Tongariki. The submarine volcano Karua, one of the most active volcanoes of Vanuatu, is near the northern rim of the Kuwae caldera.
Bisti/De-Na-Zin Wilderness.
Babuyan Claro Volcano.
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