Geology of Indonesia active volcanoes formed Sumatra, Java, Bali, and Nusa Tenggara islands, most of which, particularly Java and Bali, emerged within the last 2–3 million years. The Pacific and Australian plate movements controlled the tectonics of the eastern portion of Indonesia. The tectonics processes in Indonesia formed major structures in Indonesia. The most prominent fault in the west of Indonesia is the Semangko Fault or the Great Sumatran Fault, a dextral strike-slip fault along Sumatra Island (about 1900 km). The formation of this fault zone is related to the subduction zone in the west of Sumatra. Palu-Koro fault is another major structural
Candi of Indonesia and Thai term "prasat" which refer to the towering structure of a temple. From Hindu perspective, the term "candi" itself is believed was derived from "Candika", one of the manifestations of the goddess Durga as the goddess of death. This suggests that in ancient Indonesia the "candi" had mortuary functions as well as connections with the afterlife. The association of the name "candi", candika or durga with Hindu-Buddhist temples is unknown in India and other parts of Southeast Asia outside of Indonesia, such as Cambodia, Thailand, or Burma. Another theory from Buddhist perspective, suggested that the term "candi" might be