Apolaki Caldera

The Apolaki Caldera is a volcanic caldera with a diameter of 150 kilometers (93 mi), making it the world's largest caldera. It is located within the Benham Rise (Philippine Rise) and was discovered in 2019 by Jenny Anne Barretto, a Filipino marine geophysicist and her team. The name "Apolaki" means "giant lord" in Filipino, and is also the name of the god of sun and war in some pantheons in Philippine mythology and the indigenous Philippine folk religions.^[1][2] The volcano has been inactive for millions of years.^[3]

Apolaki Crater
Apolaki Crater Philippine Sea Show map of Luzon Apolaki Crater Apolaki Crater (Philippines) Show map of Philippines Apolaki Crater Apolaki Crater (Southeast Asia) Show map of Southeast Asia
Highest point
Coordinates	16°30′N 124°45′E[citation needed]
Geography
Location	Philippine Sea
Country	Philippines
Geology
Mountain type	caldera

Geological history

Gravimetric analysis shows that the Philippine Rise, as the submarine mountain massif is named, is made of a nine mile thick layer of magmatic and volcanic rocks. Rock samples ages range from 47.9 to 26 million years, when volcanic activity made up the massif.^[4][5]