  Location in Tuvalu | |
| Location | off the northern shore of Nanumanga |
|---|---|
| Region | Tuvalu in western Polynesia |
| Coordinates | 6°16′7.32″S176°19′15″E / 6.2687000°S 176.32083°E |
Caves of Nanumanga is an underwater cave off the northern shore of Nanumanga, Tuvalu, in western Polynesia. It was discovered by two scuba divers in 1986. [1]
The discovery of the Caves of Nanumanga was made because of interest aroused by a local legend. According to this legend, there existed "a large house under the sea". The existence of this legend led to the scuba diving expedition in 1986, during which the caves were discovered. [1] These are sometimes referred to as the Fire Caves of Nanumanga. [2]
The caves are currently submerged underneath the ocean, highlighting the profound change in sea level over time. Public controversies regarding sea level changes in contemporary Tuvalu are thus set against this background.
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Tuvalu, formerly known as the Ellice Islands, is an island country in the Polynesian subregion of Oceania in the Pacific Ocean, about midway between Hawaii and Australia. It lies east-northeast of the Santa Cruz Islands, northeast of Vanuatu, southeast of Nauru, south of Kiribati, west of Tokelau, northwest of Samoa and Wallis and Futuna, and north of Fiji.
The Western Pacific nation of Tuvalu, formerly known as the Ellice Islands, is situated 4,000 kilometers (2,500 mi) northeast of Australia and is approximately halfway between Hawaii and Australia. It lies east-northeast of the Santa Cruz Islands, southeast of Nauru, south of Kiribati, west of Tokelau, northwest of Samoa and Wallis and Futuna and north of Fiji. It is a very small island country of 26 km2 (10 sq mi). Due to the spread out islands it has the 38th largest Exclusive Economic Zone of 749,790 km2 (289,500 sq mi). In terms of size, it is the second-smallest country in Oceania.
The first inhabitants of Tuvalu were Polynesians, so the origins of the people of Tuvalu can be traced to the spread of humans out of Southeast Asia, from Taiwan, via Melanesia and across the Pacific islands of Polynesia.
Vaitupu is the largest atoll of the nation of Tuvalu. It is located at 7.48 degrees south and 178.83 degrees east. There are 1,061 people living on 5.6 square kilometres with the main village being Asau.
Sheck Exley was an American cave diver. He is widely regarded as one of the pioneers of cave diving, and he wrote two major books on the subject: Basic Cave Diving: A Blueprint for Survival and Caverns Measureless to Man. On February 6, 1974, Exley became the first chairman of the Cave Diving Section of the American National Speleological Society. During his career, he established many of the basic safety procedures used in cave and overhead diving today. Exley was also a pioneer of extreme deep scuba diving.
Nui is an atoll and one of nine districts of the Pacific Ocean state of Tuvalu. It has a land area of 3.37 km2 and a population of 610.
Nanumanga or Nanumaga is a reef island and a district of the Oceanian island nation of Tuvalu. It has a surface area of about 3 km2 with a population of 491.
Niutao is a reef island in the northern part of Tuvalu. It is one of the nine districts (islands) of Tuvalu. It is also one of the three districts that consist of only one island — not counting the three islets inside the closed lagoon. Niutao has a population of 582.
Tabon Man refers to remains discovered in the Tabon Caves in Lipuun Point in Quezon, Palawan in the Philippines. They were discovered by Robert B. Fox, an American anthropologist of the National Museum of the Philippines, on May 28, 1962. These remains, the fossilized fragments of a skull of a female and the jawbones of three individuals dating back to 16,500 years ago, were the earliest known human remains in the Philippines, until a metatarsal from the Callao Man discovered in 2007 was dated in 2010 by uranium-series dating as being 67,000 years old. However, some scientists think additional evidence is necessary to confirm those fossils as a new species, rather than a locally adapted population of other Homo populations, such as H. erectus or Denisovan.
The Congregational Christian Church of Tuvalu, commonly the Church of Tuvalu, is a Christian church which is the state church of Tuvalu, although this status merely entitles it to "the privilege of performing special services on major national events"; its adherents comprise about 86% of the 11,600 inhabitants of the archipelago.
William C. "Bill" Stone is an American engineer, caver and explorer, known for exploring deep caves, sometimes with autonomous underwater vehicles. He has participated in over 40 international expeditions and is president and CEO of Stone Aerospace.
Christianity is the predominant religion in Tuvalu, with Calvinism being the single largest denomination.
Climate change is particularly threatening for the long-term habitability of the island country of Tuvalu, which has a land area of only 26 square kilometres (10 sq mi) and an average elevation of less than 2 metres (6.6 ft) above sea level, with the highest point of Niulakita being about 4.6 metres (15 ft) above sea level. Potential threats to the country due to climate change include rising sea levels, increasingly severe tropical cyclones, high temperatures, and drought. King tides can combine with storm surges and the rising sea level to inundate the low lying atolls.
Bob Halstead, has made significant contributions to the sport of scuba diving in a multitude of capacities: photographer, author of eight diving books, early innovator in the development of dive tourism, pioneer in the dive liveaboard industry, diving instructor and educator, marine-life explorer and influential diving industry commentator. An ardent diver since 1968, Halstead has over 10,000 logged dives.
Severe Tropical Cyclone Pam was the second most intense tropical cyclone of the South Pacific Ocean in terms of sustained winds and is regarded as one of the worst natural disasters in the history of Vanuatu. A total of 15–16 people died either directly or indirectly as a result of Pam with many others injured. The storm's impacts were also felt, albeit to a lesser extent, on other islands in the South Pacific, most notably the Solomon Islands, Tuvalu, and New Zealand. Pam is the third most intense storm of the South Pacific Ocean according to pressure, after Winston of 2016 and Zoe of 2002. It is also the second most intense tropical cyclone in 2015, only behind Hurricane Patricia. In addition, Pam is tied with Orson, Monica, Marcus and Fantala for having the second strongest ten-minute maximum sustained winds in the Southern Hemisphere. Thousands of homes, schools and buildings were damaged or destroyed, with an estimated 3,300 people displaced as a result.
Severe Tropical Cyclone Raja was a tropical cyclone that holds the 24-hour rainfall record of 674.9 mm (26.57 in) for the French Overseas Territory of Wallis and Futuna. The system was first noted by the Fiji Meteorological Service (FMS) as a weak tropical disturbance northeast of Tokelau in mid-December 1986. The system developed further as it moved southwest over the next few days, and it was classified as Tropical Cyclone Raja on 23 December. The newly named system slowed and unexpectedly recurved southeast towards the French territory of Wallis and Futuna on 24 December. Over the next two days, Raja interacted with what would become Severe Cyclone Sally and executed a tight loop, passing within 55 km (35 mi) of Futuna. The system peaked as a Category 3 severe tropical cyclone on 28 December, with estimated 10-minute sustained winds of 90 mph (150 km/h). The storm turned southwest the next day and threatened Fiji, where it passed within 20 km (10 mi) of Vanua Levu and near several smaller islands in the Lau group during the following day. Raja gradually weakened over the next few days as it moved south of Fiji; it was last noted on 5 January 1987 after it filled up over the north Tasman Sea.
The history of scuba diving is closely linked with the history of the equipment. By the turn of the twentieth century, two basic architectures for underwater breathing apparatus had been pioneered; open-circuit surface supplied equipment where the diver's exhaled gas is vented directly into the water, and closed-circuit breathing apparatus where the diver's carbon dioxide is filtered from the exhaled breathing gas, which is then recirculated, and more gas added to replenish the oxygen content. Closed circuit equipment was more easily adapted to scuba in the absence of reliable, portable, and economical high pressure gas storage vessels. By the mid-twentieth century, high pressure cylinders were available and two systems for scuba had emerged: open-circuit scuba where the diver's exhaled breath is vented directly into the water, and closed-circuit scuba where the carbon dioxide is removed from the diver's exhaled breath which has oxygen added and is recirculated. Oxygen rebreathers are severely depth limited due to oxygen toxicity risk, which increases with depth, and the available systems for mixed gas rebreathers were fairly bulky and designed for use with diving helmets. The first commercially practical scuba rebreather was designed and built by the diving engineer Henry Fleuss in 1878, while working for Siebe Gorman in London. His self contained breathing apparatus consisted of a rubber mask connected to a breathing bag, with an estimated 50–60% oxygen supplied from a copper tank and carbon dioxide scrubbed by passing it through a bundle of rope yarn soaked in a solution of caustic potash. During the 1930s and all through World War II, the British, Italians and Germans developed and extensively used oxygen rebreathers to equip the first frogmen. In the U.S. Major Christian J. Lambertsen invented a free-swimming oxygen rebreather. In 1952 he patented a modification of his apparatus, this time named SCUBA, an acronym for "self-contained underwater breathing apparatus," which became the generic English word for autonomous breathing equipment for diving, and later for the activity using the equipment. After World War II, military frogmen continued to use rebreathers since they do not make bubbles which would give away the presence of the divers. The high percentage of oxygen used by these early rebreather systems limited the depth at which they could be used due to the risk of convulsions caused by acute oxygen toxicity.
Simon Kofe is a Tuvaluan politician. He was appointed as the Minister for Justice, Communication & Foreign Affairs, in the cabinet of Kausea Natano following the 2019 Tuvaluan general election.
Minute Alapati Taupo OBE was a Tuvaluan politician, diplomat, economist and accountant. Taupo was elected to the Parliament of Tuvalu in the 2019 Tuvaluan general election to represent the Nanumanga electorate. He was appointed Deputy Prime Minister & Minister for Fisheries and Trade in the Natano Ministry.
The coral reefs of Tuvalu consist of three reef islands and six atolls, containing approximately 710 km2 (270 sq mi) of reef platforms. The islands of the Tuvalu archipelago are spread out between the latitude of 5° to 10° south and longitude of 176° to 180°, west of the International Date Line. The islands of Tuvalu are volcanic in origin. On the atolls, an annular reef rim surrounds the lagoon, and may include natural reef channels. The reef islands have a different structure to the atolls, and are described as reef platforms as they are smaller tabular reef platforms that do not have a salt-water lagoon, although they may have a completely closed rim of dry land, with the remnants of a lagoon that has no direct connection to the open sea or that may be drying up.