Volcano in India
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Barren Island (Andaman Islands)
Barren Island (coordinates: 12°16′N 93°51′E) is located in the Andaman Sea, one of the most easterly of the Andaman Islands. It is the only confirmed active volcano in South Asia. Along with the rest of the Andamans, it is a part of the Indian Union Territory of Andaman and Nicobar Islands, and lies about 135 km northeast of the territory's capital, Port Blair. The first recorded eruption of the volcano dates back to 1787. Since then, the volcano has erupted more than ten times, with the most recent one which started in May 2008.
After the first recorded eruption in 1787, further eruptions were recorded in 1789, 1795, 1803–04, and 1852. After nearly one and half century of dormancy, the island had another eruption in 1991 that lasted six months and caused considerable damage. There were eruptions in 1994–95 and 2005–07, the latter being considered to be linked to the 2004 Indian Ocean earthquake. The most recent eruption started in May 2008 and still continues.
This volcanic island stands in the midst of a volcanic belt on the edge of the Indian and Burmese tectonic plates. Narcondum is a dormant volcano in the area, apart from volcanic seamounts like Alcock and Sewell.
All the historical and recent eruptions (1787 and after) are confined within and around an active polygenetic cinder cone in a 2 km wide caldera that is formed by the collapse of a primitive cone of a stratovolcano. The remnant of the primitive volcanic cone forms a precipitous cliff around the island (commonly referred as caldera wall), with a break towards the west. The highest elevation on the island is 354 metres (1,161 ft), with most of the primitive volcano underwater (standing on the seafloor 2250 meters below the sea level). The island is 3 km in diameter, with a total surface area of 10 km².
True to its name, it is a barren area uninhabited by humans, though it has a small population of goats. Also birds, bats like flying foxes and a few rodent species such as rats are known to survive the harsh conditions.
Baratang, less commonly known as Baratang Island, (coordinates: 12°07′N 92°47′E) is an island in the Andaman Islands, India, with an area of approximately 238 square kilometres (92 sq mi). It is one of the main islands of the Great Andaman group, a closely-set archipelago in the Bay of Bengal, adjoining the Andaman Sea. Middle Andaman is to its north, and South Andaman to the south. The islands of Ritchie's Archipelago lie some 20 kilometres (12 mi) to the east. Port Blair, the capital of the Indian Union Territory of Andaman and Nicobar Islands, is located approximately 100 kilometres (62 mi) to the south.
Baratang contains the only known examples of mud volcanoes in India. These mud volcanoes have erupted sporadically, with recent eruptions in 2005 believed to have been associated with the 2004 Indian Ocean earthquake. The previous major eruption recorded was on 18 February 2003. The locals call this mud volcano jalki.
There are other volcanoes in the area. The Barren Island volcano which is the only active volcano in South Asia and the Narcondum volcano which is considered to be a potentially active volcano.
Narcondam or Narcondum Coordinates: 13.43°N 94.25°E is a small volcanic island located in the Andaman Sea. Its central peak rises some 710 m above mean sea level, and is formed of andesite. It is considered to be part of the Andaman Islands, the main body of which lie approximately 114 km to the west. The island is part of the Indian union territory of Andaman and Nicobar Islands. The island is small, approximately 3 km×4 km. It was classified as a dormant volcano by the Geological Survey of India.
The island is formed from a volcano, which had not known to have been active in recent times, until on June 8, 2005 there were reports of "mud and smoke" being ejected from the volcano. The 2004 Indian Ocean earthquake is thought to have caused magma to move underground and may be related to the current activity. If the reports were accurate this would alter the scientific status of Narcondam to active. Further to the south west (approximately 150 km) lies the active volcano island of Barren Island. Narcondam Island is about 160 miles from Burma, is about 160 miles from Port Blair, and is almost 800 miles from Vishakhapatnam (part of the mainland of India).
The name Narcondam could have been derived from the Sanskrit naraka-kundam, meaning "a pit of Hell," although this may be the result of confusion between it and Barren Island.
Narcondam Island holds the easternmost point of the Andaman and Nicobar Islands. Until 1986 Burma claimed sovereignty over the island. This claim was given up on reaching agreement with India on the delimitation of the maritime boundary between the two nations in the Andaman Sea, the Coco channel and the Bay of Bengal.
Narcondam Island's mountain, at 710 meters is the second tallest point in the Andaman and Nicobar Islands, the first being Saddle Peak, North Andaman Island at 732 meters.
Volcano in India
These are the volcanic area in india country.