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The Java Sea covers the southern section of the 1,790,000 km 2 (690,000 sq mi) Sunda Shelf. A shallow sea, it has a mean depth of 46 m (151 ft). It measures about 1,600 km (990 mi) east-west by 380 km (240 mi) north-south [4] and occupies a total surface area of 320,000 km 2 (120,000 sq mi).
The rise of sea level during a meltwater pulse 14,600 to 14,300 years Before Present was as much as 16 meters within 300 years. [6] Present sea levels submerge a number of Pleistocene paleo river systems that drained much of Sundaland during the last glacial maximum 18,000 to 20,000 years ago. [7] To the east of the Sunda Shelf is the Sahul Shelf.
The Sahul Shelf and the Sunda Shelf today. The area in between is called "Wallacea"Sundaland [1] (also called Sundaica or the Sundaic region) is a biogeographical region of Southeast Asia corresponding to a larger landmass that was exposed throughout the last 2.6 million years during periods when sea levels were lower.
the minimum age for diving is 18 years, but for recreational diving 8 years, subject to depth limits by age for divers younger than 18 years, some items of equipment are compulsory, such as: diving equipment including mask, snorkel, fins, buoyancy compensation device, regulator with two second stages, and submersible pressure gauge,
It is 3,200 kilometres (2,000 mi) long with a maximum depth of 7,290 metres (23,920 feet). [2] 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 to the Andaman Islands , and forms the boundary between the Indo-Australian plate and ...
The recommended depth limit for more extensively trained recreational divers ranges from 30 metres (98 ft) for PADI divers, [17] (this is the depth at which nitrogen narcosis symptoms generally begin to be noticeable in adults), to 40 metres (130 ft) specified by Recreational Scuba Training Council, [17] 50 metres (160 ft) for divers of the ...
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The Eastern limits of the Philippine Sea [P 1] and Japan Sea [P 2] and the Southeastern limit of the Sea of Okhotsk. [P 3] On the North. The Southern limits of the Bering Sea [P 4] and the Gulf of Alaska. [P 5] On the East. The Western limit of Coastal waters of Southeast Alaska and Br. Columbia, [P 6] and the Southern limit of the Gulf of ...