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
Tourism in Indonesia Tourism in Indonesia Tourism in Indonesia is an important component of the Indonesian economy as well as a significant source of its foreign exchange revenues. Indonesia was ranked at 20th in the world tourist Industry in 2017, also ranked as the ninth-fastest growing tourist sector in the world, the third-fastest growing in Asia and fastest-growing in Southeast Asia.The country has planned to achieve 8 percent of GDP from tourism sector and targeted to attract about 20 million of visitors by 2019. The tourism sector ranked as the 4th largest among goods and services export sectors. During 2016 about 12.02 million