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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 1,900 km). The formation of this fault zone is related to the subduction zone in the west of Sumatra.
The Flores back-arc thrust fault is a major system of west–east trending thrust faults that extend eastwards from west of Lombok just south of where Sunda Shelf ends at Bali Sea, towards the islands of Sumbawa, Flores, and Alor, with a total length of at least 800 km., [1] entering the Weber Basin and Aru Basin adjacent Sahul Shelf of the Australian plate.
Molucca Sea Collision Zone modified by Zhang et al. [3] using GeoMapApp The Molucca Sea plate is one of many tectonic features that compose the Molucca Sea Collision Complex, which refers to the tectonic relationship of the Sangihe plate, Halmahera plate, and the Molucca Sea plate, in addition to the volcanic Halmahera and Sangihe Arcs.
The Great Sumatran fault, also known as Semangko fault, is a large strike-slip fault running the entire length of the island of Sumatra.This Indonesian island is located in a highly seismic area of the world, including a subduction zone off the west coast of the island.
Geotectonics is a peer-reviewed scientific journal published by Springer.The scope of the journal is the tectonics, magmatism, metamorphism, structural geology, mineral resources, geodynamics and the deep structure of the Earth.
In Indonesia, Natawidjaja has contributed to research on local tectonic plates. Since 2000, he has made predictions regarding the earthquake on the west coast of Sumatra Island . [ 3 ]
With an area of 60,000 km 2, and depths up to 15 km, the Kutai is the largest and deepest Tertiary age basin in Indonesia. [1] Plate tectonic evolution in the Indonesian region of SE Asia has produced a diverse array of basins in the Cenozoic. [2] The Kutai is an extensional basin in a general foreland setting.
Seismic activity in Indonesia is monitored by the Directorate of Volcanology and Geological Hazard Mitigation with the monitoring post for Mount Tambora located at Doro Peti village. [66] They focus on seismic and tectonic activity by using a seismograph. There has been no significant increase in seismic activity since the 1880 eruption.