What plate boundary is the Sunda Trench?
Its maximum depth is the deepest point in the Indian Ocean. The trench stretches from the Lesser Sunda Islands past Java, around the southern coast of Sumatra on to the Andaman Islands, and forms the boundary between Indo-Australian Plate and Eurasian plate.
What type of plate boundary is located at the Sumatra trench?
The Sumatra-Andaman portion of the collision zone forms a subduction zone megathrust plate boundary, the Sunda-Java trench, which accommodates convergence between the Indo-Australia and Sunda plates. This convergence is responsible for the intense seismicity and volcanism in Sumatra.
What is the plate boundary between the Australian Plate and the Sunda plate?
subduction zone
The Sumatra-Andaman portion of the collision zone forms a subduction zone megathrust plate boundary, the Sunda-Java trench, which accommodates convergence between the Indo-Australia and Sunda plates.
Is the Sunda plate continental or oceanic?
Tectonic plate and crust are slightly different concepts. So, The Sunda plate is mainly comprised of continental crust. There might be a bit of oceanic crust, but less. The convergence of the Indo-Australian plate with the Sunda plate is an oceanic-continental convergence.
Is the Sunda Plate subducting?
The Sunda Arc is a major active plate boundary, where the Indo-Australian Plate is subducted at a speed of ∼7 cm/y under the Eurasian Plate. The subduction zone (Sunda Arc) extends from the north of Sumatra to the island of Sumbawa.
What tectonic plates surround the Philippines?
The Philippine Mobile Belt (also called as Taiwan-Luzon-Mindoro Mobile Belt) is a complex tectonic zone which sits at the convergence zone of the Eurasian Plate, Philippine Sea Plate and Indo-Australian Plate. It covers the whole Philippine archipelago and extends southwards to the Molucca Sea and eastern Indonesia.
Between what 2 tectonic plates did the Sumatra earthquake occur?
The December 26, 2004 magnitude (M) 9.1 Sumatra-Andaman earthquake occurred along a tectonic subduction zone in which the India Plate, an oceanic plate, is being subducted beneath the Burma micro-plate, part of the larger Sunda plate.
What type of plate boundary is between the Antarctic Plate and African Plate?
The Antarctic Plate is bounded almost entirely by extensional mid-ocean ridge systems. The adjoining plates are the Nazca Plate, the South American Plate, the African Plate, the Somali Plate, the Indo-Australian Plate, the Pacific Plate, and, across a transform boundary, the Scotia Plate.
Where is Sunda Shelf?
Mainland Southeast Asia
Geologically, the Sunda Shelf /ˈsʊndə/ is a southeastern extension of the continental shelf of Mainland Southeast Asia. Major landmasses on the shelf include the Bali, Borneo, Java, Madura, and Sumatra, as well as their surrounding smaller islands. It covers an area of approximately 1.85 million km2.
What kind of fault is the Sunda megathrust?
It is a megathrust, located at a convergent plate boundary where it forms the interface between the overriding Eurasian plate and the subducting Indo-Australian plate….List of Sunda megathrust earthquakes.
| Location | 50 km north of Simeulue Regency |
|---|---|
| Coordinates | 3.30°N 95.87°E |
| Fatalities | 227,898 |
| Magnitude | 9.3 Mw (USGS) |
What tectonic plate is Sierra Madre Philippines?
The Sierra Madre Occidental is the result of Cretaceous-Cenozoic magmatic and tectonic episodes related to the subduction of the Farallon plate beneath North America and to the opening of the Gulf of California.
Where is the Sunda Trench in the world?
The Sunda is bounded in the east by the Philippine Mobile Belt, Molucca Sea Collision Zone, Molucca Sea Plate, Banda Sea Plate and Timor Plate; to the south and west by the Australian Plate; and to the north by the Burma Plate, Eurasian Plate; and Yangtze Plate. The Indo-Australian Plate dips beneath the Sunda Plate along the Sunda Trench,…
How big is the Sunda Plate tectonic plate?
The Sunda Arc. The Sunda Arc is approximately 6000 km long and extends from the northern tip of Indonesian island of Sumatra to the western tip of Papua/New Guinea. The arc in itself is characterized by a high degree of volcanic activity of mostly andesitic composition (Curray, 1989). A famous volcano, situated in this region…
Where are the islands on the Sunda Plate?
On the edge of the Sunda Plate, approximately 100 kilometers (60 miles) from the Sunda Trench and 180 kilometers (100 miles) from Sumatra, are a series of islands that are the crest of a fore-arc ridge.
Where is the Sunda Arc located in Australia?
The Sunda Arc, a seismically active convergent boundary, is the area along the Southwestern portion of the Sunda plate below which the northward-moving Indo-Australian plate is being subducted (Curray, 1989).