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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.
Banda Arc tectonic map. The Banda Arc (main arc, Inner, and Outer) is a dual chain of islands in eastern Indonesia that is around 2,300 km long. It is the result of the collision of a continent and an intra-oceanic island arc.
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.
Tectonic plates are made up of Earth’s crust and the rigid top layer of the mantle, known as the lithospheric mantle. The planet has around a dozen large and irregularly shaped tectonic plates ...
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.
The tectonic setting of the Molucca Sea region is unique. It is the only global example of an active arc-arc collision consuming an oceanic basin via subduction in two directions. The Molucca Sea plate has been subsumed by tectonic microplates, the Halmahera plate and the Sangihe plate .
A moment magnitude (M w) 6.2 earthquake struck Majene Regency in West Sulawesi, Indonesia, on 15 January 2021, at 02:28 WITA (18:28 UTC). The reverse faulting shock initiated at 18.0 km (11.2 mi) depth with an epicenter inland, located 32 km (20 mi) south of Mamuju. It was preceded by a M w 5.7 foreshock several hours prior.
UTC time: 2022-02-25 01:39:27: ISC event: 622071228: USGS-ANSSComCat: Local date: 25 February 2022: Local time: 08:39:27 WIB (): Magnitude: 6.2 M w: Depth: 4.0 km (2 mi) Epicenter: 1]: Fault: Great Sumatran fault: Type: Strike-slip: Areas affected: West Sumatra, Indonesia: Total damage: Rp 780 million: Max. intensity: MMI VIII (Severe): Foreshocks: 1 : Aftershocks: 201 : Casualties: 27 dead ...