Apolaki Caldera
The Apolaki Caldera is a volcanic crater with a diameter of, making it the world's largest caldera. It is located within the Benham Rise and was discovered in 2019 by Jenny Anne Barretto, a Filipina marine geophysicist and her team. The name "Apolaki" means "giant lord" in Filipino. The Rise has been known to the people of Catanduanes as Kalipung-awan since pre-colonial times, which literally means 'loneliness from an isolated place'.Geological history
shows that the Benham Rise, as the submarine mountain massif is named, is made up of a nine miles thick layer of magmatic and volcanic rocks. Rock samples ages ranges from 47.9 to 26 million years, when volcanic activity made up the massif.
