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Banjak Islands
The Banyak Islands (sometimes spelled Banjak Islands) are a group of inhabited islands located between Simeulue and Nias off the western coast of Sumatra in Indonesia's Aceh Province. Surveys of the area approximate around 71 islands and additional mangrove stands in shallow off-shore areas, although locals count 99 islands. The largest island in the group is Tuangku, with the principal town of Haloban. Two other major islands located either side of Tuangku are Bangkaru and Ujung Batu. Tuangku is separated from Bangkaru by a fault line. Geography With an area of 118 square miles (305.7 square km), the group lies north of Nias and 18 miles (29 km) west of Sumatra in the Indian Ocean. The islands have long been noted for the existence of substantial offshore coral reefs, though problems with overharvesting, damage from explosives, and recent geological disturbances have threatened these underwater resources. The islands vary in their land cover; most are sandy with limit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banyak Islands
The Banyak Islands (sometimes spelled Banjak Islands) are a group of inhabited islands located between Simeulue and Nias off the western coast of Sumatra in Indonesia's Aceh Province. Surveys of the area approximate around 71 islands and additional mangrove stands in shallow off-shore areas, although locals count 99 islands. The largest island in the group is Tuangku, with the principal town of Haloban. Two other major islands located either side of Tuangku are Bangkaru and Ujung Batu. Tuangku is separated from Bangkaru by a fault line. Geography With an area of 118 square miles (305.7 square km), the group lies north of Nias and 18 miles (29 km) west of Sumatra in the Indian Ocean. The islands have long been noted for the existence of substantial offshore coral reefs, though problems with overharvesting, damage from explosives, and recent geological disturbances have threatened these underwater resources. The islands vary in their land cover; most are sandy with limi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aceh
Aceh ( ), officially the Aceh Province ( ace, Nanggroë Acèh; id, Provinsi Aceh) is the westernmost province of Indonesia. It is located on the northernmost of Sumatra island, with Banda Aceh being its capital and largest city. Granted a special autonomous status, Aceh is a religiously conservative territory and the only Indonesian province practicing the Sharia law officially. There are ten indigenous ethnic groups in this region, the largest being the Acehnese people, accounting for approximately 80% to 90% of the region's population. Aceh is where the spread of Islam in Indonesia began, and was a key factor of the spread of Islam in Southeast Asia. Islam reached Aceh (Kingdoms of Fansur and Lamuri) around 1250 AD. In the early 17th century the Sultanate of Aceh was the most wealthy, powerful and cultivated state in the Malacca Straits region. Aceh has a history of political independence and resistance to control by outsiders, including the former Dutch colonists and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Clam
The giant clams are the members of the clam genus ''Tridacna'' that are the largest living bivalve mollusks. There are actually several species of "giant clams" in the genus ''Tridacna'', which are often misidentified for ''Tridacna gigas'', the most commonly intended species referred to as "the giant clam". ''Tridacna gigas'' is one of the most endangered clam species. Antonio Pigafetta documented these in his journal as early as 1521. One of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian oceans, they can weigh more than , measure as much as across and have an average lifespan in the wild of over 100 years. They are also found off the shores of the Philippines and in the South China Sea in the coral reefs of Sabah (Malaysian Borneo). The giant clam lives in flat coral sand or broken coral and can be found at depths of as much as 20 m (66 ft).#Reference-idKnop1996, Knop, p. 10. Its range covers the Indo-Pacific, but p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sibolga
Sibolga (formerly sometimes Siboga) is a city and a port located in the natural harbor of Sibolga Bay on the west coast of North Sumatra province, in Indonesia. It is located on the western side of North Sumatra, facing the Indian Ocean and is a transit harbor to the Nias island which was hard hit during the 2004 Indian Ocean earthquake. Sibolga is also a semi-enclave within Central Tapanuli Regency, as Sibolga borders with Central Tapanuli Regency in the north, east, and south, while it borders with the Mentawai Strait in the west. The city has an area of 10.77 km2 and had a population of 84,444 at the 2010 census and 89,584 at the 2020 census.Badan Pusat Statistik, Jakarta, 2021. Sibolga is the smallest city in Indonesia. Administrative districts The city is divided into four districts (''kecamatan''), tabulated below with their areas and their populations at the 2010 censusBiro Pusat Statistik, Jakarta, 2011. and the 2020 census.Badan Pusat Statistik, Jakarta, 2021. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proa
Proas are various types of multi-hull outrigger sailboats of the Austronesian peoples. The terms were used for native Austronesian ships in European records during the Colonial era indiscriminately, and thus can confusingly refer to the double-ended single-outrigger boats of Oceania, the double-outrigger boats of Island Southeast Asia, and sometimes ships with no outriggers or sails at all. In its most common usage, the term ''proa'' refers to the Pacific proas which consist of two (usually) unequal-length parallel hulls. It is sailed so that one hull is kept to windward, and the other to leeward. It is double-ended, since it needs to " shunt" to reverse direction when tacking. It is most famously used for the ''sakman'' ships of the Chamorro people of the Northern Marianas, which were known as the "flying proas" for their remarkable speed. In Island Southeast Asia, the term ''proa'' may also sometimes be used, but the terms perahu, prau, prahu, paraw and prow are more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishing
Fishing is the activity of trying to catch fish. Fish are often caught as wildlife from the natural environment, but may also be caught from stocked bodies of water such as ponds, canals, park wetlands and reservoirs. Fishing techniques include hand-gathering, spearing, netting, angling, shooting and trapping, as well as more destructive and often illegal techniques such as electrocution, blasting and poisoning. The term fishing broadly includes catching aquatic animals other than fish, such as crustaceans ( shrimp/ lobsters/crabs), shellfish, cephalopods (octopus/squid) and echinoderms ( starfish/ sea urchins). The term is not normally applied to harvesting fish raised in controlled cultivations ( fish farming). Nor is it normally applied to hunting aquatic mammals, where terms like whaling and sealing are used instead. Fishing has been an important part of human culture since hunter-gatherer times, and is one of the few food production activities that have persisted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fetch (geography)
In oceanography wind fetch, also known as fetch length or simply fetch, is the length of water over which a given wind has blown without obstruction. Fetch is used in geography and meteorology and its effects are usually associated with sea state and when it reaches shore it is the main factor that creates storm surge which leads to coastal erosion and flooding. It also plays a large part in longshore drift. Fetch length, along with the wind speed (wind strength), and duration, determines the size (sea state) of waves produced. If the wind direction is constant, the longer the fetch and the greater the wind speed, the more wind energy is transferred to the water surface and the larger the resulting sea state will be.''November's fury'' by Michael Schumaker University of Minnesota Press Sea state will increase over time until local energy dissipation balances energy transfer to the water from the wind and a fully developed sea results. See also * Gale * Sea state * Ocean surface ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surfing
Surfing is a surface water sport in which an individual, a surfer (or two in tandem surfing), uses a board to ride on the forward section, or face, of a moving wave of water, which usually carries the surfer towards the shore. Waves suitable for surfing are primarily found on ocean shores, but can also be found in standing waves in the open ocean, in lakes, in rivers in the form of a tidal bore, or in wave pools. The term ''surfing'' refers to a person riding a wave using a board, regardless of the stance. There are several types of boards. The Moche of Peru would often surf on reed craft, while the native peoples of the Pacific surfed waves on alaia, paipo, and other such water craft. Ancient cultures often surfed on their belly and knees, while the modern-day definition of surfing most often refers to a surfer riding a wave standing on a surfboard; this is also referred to as stand-up surfing. Another prominent form of surfing is body boarding, where a surfer rides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2005 Nias–Simeulue Earthquake
The 2005 Nias–Simeulue earthquake occurred on 28 March off the west coast of northern Sumatra, Indonesia. At least 915 people were killed, mostly on the island of Nias. The event caused panic in the region, which had already been devastated by the massive tsunami triggered by the 2004 Indian Ocean earthquake, but this earthquake generated a relatively small tsunami that caused limited damage. It was the third most powerful earthquake since 1965 in Indonesia. The earthquake occurred at 16:09:37 UTC (23:09:37 local time) on 28 March 2005. The hypocenter was located below the surface of the Indian Ocean, where subduction is forcing the Indo-Australian Plate to the southwest under the Eurasian Plate's Sunda edge. The area is west of Sibolga, Sumatra, or northwest of Jakarta, approximately halfway between the islands of Nias and Simeulue. Seismic recordings give the earthquake a moment magnitude of about 8.6, and effects were felt as far away as Bangkok, Thailand, over away. Ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mentawai Islands
Mentawai may refer to: * Mentawai Islands * Mentawai Strait * Mentawai people * Mentawai language The Mentawai language is an Austronesian language, spoken by the Mentawai people of the Mentawai Islands, West Sumatra, Indonesia. Dialects According to ''Ethnologue'', Mentawai dialects include: Silabu, Sipura – Simalegi, Sakalagan, S ... {{dab Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epicenter
The epicenter, epicentre () or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates. Surface damage Before the instrumental period of earthquake observation, the epicenter was thought to be the location where the greatest damage occurred, but the subsurface fault rupture may be long and spread surface damage across the entire rupture zone. As an example, in the magnitude 7.9 Denali earthquake of 2002 in Alaska, the epicenter was at the western end of the rupture, but the greatest damage was about away at the eastern end. Focal depths of earthquakes occurring in continental crust mostly range from . Continental earthquakes below are rare whereas in subduction zone earthquakes can originate at depths deeper than . Epicentral distance During an earthquake, seismic waves propagate in all directions from the hypocenter. Seismic shadowing occurs on the opposite s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2004 Indian Ocean Earthquake
An earthquake and a tsunami, known as the Boxing Day Tsunami and, by the scientific community, the Sumatra–Andaman earthquake, occurred at 07:58:53 local time (UTC+7) on 26 December 2004, with an epicentre off the west coast of northern Sumatra, Indonesia. It was an undersea megathrust earthquake that registered a magnitude of 9.1–9.3 , reaching a Mercalli intensity up to IX in certain areas. The earthquake was caused by a rupture along the fault between the Burma Plate and the Indian Plate. A series of massive tsunami waves grew up to high once heading inland, after being created by the underwater seismic activity offshore. Communities along the surrounding coasts of the Indian Ocean were devastated, and the tsunamis killed an estimated 227,898 people in 14 countries, making it one of the deadliest natural disasters in recorded history. The direct results caused major disruptions to living conditions and commerce in coastal provinces of surrounded countries, including Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
