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
Internet in Indonesia of the users knew about e-commerce, but only 10.4 million users used the internet for transactions. Almost 70 percent of the users used their mobile phones for internet usage. According to eMarketer, in 2014 Indonesia had 83.7 million users (in sixth place behind Japan), but Indonesia is predicted to surpass Japan in 2017, because Indonesian internet growth is in the double digits, while Japanese internet growth is slower. According to Akamai Technologies, Indonesia, with 9 connections to undersea cables, had in Q1 2014 an average Internet connection speed of 2.4 Mbit/s, which was an increase of 55 percent from the