West Java is the Indian Ocean. Unlike most other provinces in Indonesia which have their capitals in coastal areas, the provincial capital, Bandung, is located in the mountainous area in the centre of the province. Banten Province was formerly part of West Java Province but was created a separate province in 2000. West Java, in the densely populated western third of Java, is home to almost 1 out of every 5 Indonesians. West Java and Banten provinces, as a part of the Pacific Ring of Fire, have more mountains and volcanoes than any of the other provinces in Indonesia. The vast volcanic
Oceanic trench Oceanic trench Oceanic trenches are topographic depressions of the sea floor, relatively narrow in width, but very long. These oceanographic features are the deepest parts of the ocean floor. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries, along which lithospheric plates move towards each other at rates that vary from a few millimeters to over ten centimeters per year. A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. Trenches are generally parallel to a volcanic island arc, and about from a volcanic arc. Oceanic trenches typically extend below