Sunda Arc - Citizendia

Western Sunda Arc and Trench showing tectonic and seismic activity.

The Sunda Arc is a volcanic arc that has produced the islands of Sumatra and Java and the Sunda Strait and the Lesser Sunda Islands. A volcanic arc is a chain of volcanic islands or Mountains formed by Plate tectonics as an oceanic Tectonic plate subducts under Sumatra (also spelled Sumatera) is the sixth largest island in the world (approximately 470000 km² and is the largest island entirely in Indonesia (two Java (Jawa is an Island of Indonesia and the site of its Capital city Jakarta. The Sunda Strait ( Indonesian: Selat Sunda) is the Strait between the Indonesian Islands of Java and the island of Sumatra The Nusa Tenggara (lit Southeast Islands or Lesser Sunda Islands, are a group of Islands in the middle-south part of the Malay Archipelago. A chain of volcanoes forms the topographic spine of these islands. Plate tectonics and hotspots Divergent plate boundaries At the The arc marks an active convergent boundary between the East Eurasian plates that underlie Indonesia, especially the Sunda Plate and the Burma Plate, with the India and Australian Plates that form the seabed of the Indian Ocean and the Bay of Bengal. In Plate tectonics, a convergent boundary – also known as a convergent plate boundary or a destructive plate boundary – is an actively deforming region The Republic of Indonesia ( (Republik Indonesia is a Country in Southeast Asia. The Sunda Plate is a Tectonic plate located in southeast Asia and commonly considered a part of the Eurasian Plate. The Burma Plate is a small Tectonic plate or microplate located in Southeast Asia, often considered a part of the larger Eurasian Plate. The India or Indian Plate is a Tectonic plate that was originally a part of the ancient continent of Gondwanaland from which it split off eventually The Indo-Australian Plate is a major Tectonic plate that includes the continent of Australia and surrounding Ocean, and extends northwest to include the The Indian Ocean is the third largest of the world's Oceanic divisions covering about 20% of the water on the Earth 's surface The Bay of Bengal is a bay that forms the northeastern part of the Indian Ocean. The Sunda Arc is a classic example of a volcanic island arc, in which all the elements of such geodynamic features can be identified. A volcanic arc is a chain of volcanic islands or Mountains formed by Plate tectonics as an oceanic Tectonic plate subducts under

The India and Australian Plates are subducting beneath the Sunda and Burma plates along the Sunda Arc. In Geology, a subduction zone is an area on Earth where two tectonic plates meet and move towards one another with one sliding underneath the other The tectonic deformation along this subduction zone in the Java Trench (Sunda Trench) caused the 2004 Indian Ocean earthquake of December 26, 2004. In Geology, a subduction zone is an area on Earth where two tectonic plates meet and move towards one another with one sliding underneath the other The Java Trench, also called Sunda Trench, located in the northeastern Indian Ocean, with a length of 2600 km and a maximum depth of 7725 meters (at 10°19'S 109°58'E The 2004 Indian Ocean earthquake was an undersea Earthquake that occurred at 005853 UTC on December 26 2004 with an Epicentre off the west coast of

The Sunda Arc is home to some of the world's most dangerous and explosive volcanoes. The eruption of Tambora on Sumbawa Island, in 1815, is thought to be the most massive in recorded history. Also this subduction zone has created arguably the world's largest active volcano Lake Toba which produced the largest volcanic eruption in human history erupting just over 2,800 km³ of magma. Lake Toba ( Danau Toba) is a Lake and Supervolcano, 100 km long and 30 km wide and 505 m The loudest noise in recorded history, that of Krakatau's blast, took place in 1883, and was heard 3,000 miles away. Hundreds of thousands of people have been killed by these eruptions and by episodes of activity at other volcanoes, including Papandayan, Galunggung, and Kelut.

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