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
Indonesia It ranks the price competitiveness of Indonesia's tourism sector the 5th out of 136 countries. It states that Indonesia has a strong visa policy and scored well on international openness (ranked 2nd and 17th respectively). The country also scores well on natural and cultural resources (ranked 17th and 23rd respectively). However, Indonesia has a low score in infrastructure (ranked 96th), as some aspect of tourist service infrastructure are underdeveloped. The 2010 census recorded Indonesia's population as 237.6 million, with high population growth at 1.9%. 58% of the population lives in Java, the world's most populous island. The population density is