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Palu-Koro Fault
The Palu-Koro Fault or Palu-Koro Fault System is a major active NNW-SSE trending left-lateral fault (geology)#Strike-slip faults, strike-slip fault zone on the island of Sulawesi in Indonesia. It caused the 2018 Sulawesi earthquake and tsunami. Geometry It extends from near Dondowa, North Luwu Regency, in the south, where it links to the WNW-ESE trending Matano Fault. It continues northwards, heading offshore through the Gulf of Palu and passing to the west of the Minahassa Peninsula, before eventually linking with the North Sulawesi Subduction Zone. Although it is a strike slip fault, there are locally normal and thrust features and segments. Near Palu it forms the western side of the Palu Basin, a small pull-apart basin developed along the fault system. Regional setting The fault forms the boundary between two of the major microblocks that form the island, the North Sula Block and the Makassar Block. The current slip rate along the Palu-Koro Fault is estimated to be in the ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulawesi
Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Archipelago. Within Indonesia, only Sumatra, Borneo, and New Guinea, Papua are larger in territory, and only Java and Sumatra have larger populations. The landmass of Sulawesi includes four peninsulas: the northern Minahassa Peninsula, Minahasa Peninsula, the East Peninsula, Sulawesi, East Peninsula, the South Peninsula, Sulawesi, South Peninsula, and the Southeast Peninsula, Sulawesi, Southeast Peninsula. Three gulfs separate these peninsulas: the Gulf of Tomini between the northern Minahasa and East peninsulas, the Tolo Gulf between the East and Southeast peninsulas, and the Bone Gulf between the South and Southeast peninsulas. The Strait of Makassar runs along the western side of the island and separates the island from Borneo. Etymology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2018 Sulawesi Earthquake And Tsunami
On 28 September 2018, a shallow, large earthquake struck in the neck of the Minahasa Peninsula, Indonesia, with its epicentre located in the mountainous Donggala Regency, Central Sulawesi. The magnitude 7.5 quake was located away from the provincial capital Palu and was felt as far away as Samarinda on East Kalimantan and also in Tawau, Malaysia. This event was preceded by a sequence of foreshocks, the largest of which was a magnitude 6.1 tremor that occurred earlier that day. Following the mainshock, a tsunami alert was issued for the nearby Makassar Strait. A localised tsunami struck Palu, sweeping shore-lying houses and buildings on its way. The combined effects of the earthquake and tsunami led to the deaths of an estimated 4,340 people. This makes it the deadliest earthquake to strike the country since the 2006 Yogyakarta earthquake, as well as the deadliest earthquake worldwide in 2018, surpassing the previous earthquake that struck Lombok nearly 2 months earlier, k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Luwu Regency
North Luwu Regency is a regency of South Sulawesi Province of Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine .... It covers 7,502.58 kim2 and had a population of 287,606 at the 2010 census and 322,919 at the 2020 census, comprising 163,168 males and 159,751 females. The principal town lies at Masamba. Administrative districts North Luwu Regency in 2010 comprised eleven administrative Districts (''Kecamatan''), but subsequently four further districts have been added by the division of existing districts. These fifteen districts are tabulated below with their areas and their populations at the 2010 census and the 2020 census.Biro Pusat Statistik, Jakarta, 2011. The table also includes the location of the district administrative centres, and the numbers of administrative ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matano Fault
Lake Matano ( id, Danau Matano), also known as Matana, is a natural lake in East Luwu Regency, South Sulawesi province, Indonesia. With a depth of , it is the deepest lake in Indonesia (ranked by maximum depth), the 10th deepest lake in the world and the deepest lake on an island by maximum depth. The surface elevation from mean sea level is only , which means that the deepest portion of the lake is below sea level ( cryptodepression). It is one of the two major lakes (the other being Lake Towuti) in the Malili Lake system. Endemic animals and plants Lake Matano is home to many species of endemic fish and other animals (e.g. '' Caridina'' shrimps, Parathelphusid crabs and ''Tylomelania'' snails) as well as many plants. The endemic fishes of Matano have been compared to the species swarms of the Rift Valley Lakes of Africa. While not as diverse, they are thought to have all arisen from a single ancestor species and diversified into numerous different species, which now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minahassa Peninsula
The Minahasa Peninsula, also spelled Minahassa, is one of the four principal peninsulas on the Indonesian island of Sulawesi. It stretches north from the central part of the island, before turning to the east and forming the northern boundary of the Gulf of Tomini and the southern boundary of the Celebes Sea. The peninsula is divided into North Sulawesi and Gorontalo provinces, as well as part of Central Sulawesi. Its largest cities are Manado and Gorontalo, while Palu is located at its base. The Minahasan languages, a branch of the Philippine languages, are spoken on the peninsula. People The Minahasan politician Antoinette Waroh Antoinette Wailan Weënas (25 November 19019 March 1991), better known by her birth name Antoinette Wailan Waroh, was an Indonesian politician who became the only female parliament member in the Provisional Representative Body of East Indonesia. ... was born here in 1901. References Peninsulas of Sulawesi Landforms of Gorontalo (province) Lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Sulawesi Subduction Zone
North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating direction or geography. Etymology The word ''north'' is related to the Old High German ''nord'', both descending from the Proto-Indo-European unit *''ner-'', meaning "left; below" as north is to left when facing the rising sun. Similarly, the other cardinal directions are also related to the sun's position. The Latin word ''borealis'' comes from the Greek '' boreas'' "north wind, north", which, according to Ovid, was personified as the wind-god Boreas, the father of Calais and Zetes. ''Septentrionalis'' is from ''septentriones'', "the seven plow oxen", a name of '' Ursa Major''. The Greek ἀρκτικός (''arktikós'') is named for the same constellation, and is the source of the English word '' Arctic''. Other languages have other derivations. For example, in Lezgian, ''kefe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palu
Palu, which is officially known as the City of Palu (Indonesian: ''Kota Palu''), is the capital and largest city of Central Sulawesi. Palu is located on the northwestern coast of Sulawesi and borders Donggala Regency to the north and west, Parigi Moutong Regency to the east, and Sigi Regency to the south. The city boundaries encompass a land area of . According to the 2020 Indonesian census, Palu has a population of 373,218, making it the third-most populous city on the island after Makassar and Manado; the official estimate as at mid 2021 was 377,030. Palu is the center of finance, government, and education in Central Sulawesi, as well as one of several major cities on the island. The city hosts the province's main port, its biggest airport, and most of its public universities. Palu is located in Palu Bay; it was initially a small agricultural town until it was selected to become the capital of the newly created province of Central Sulawesi in 1953. Palu is sited on the Palu-K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pull-apart Basin
In geology, a basin is a region where subsidence generates accommodation space for the deposition of sediments. A pull-apart basin is a structural basin where two overlapping (en echelon) strike-slip faults or a fault bend creates an area of crustal extension undergoing tension, which causes the basin to sink down. Frequently, the basins are rhombic or sigmoidal in shape. Dimensionally, basins are limited to the distance between the faults and the length of overlap.Frisch, Wolfgang, Martin Meschede, and Ronald C. Blakey. ''Plate tectonics: Continental drift and mountain building''. Springer, 2010. Pull-apart basins are also referred to as overlapping-tension-zones (OTZ). Mechanics and fault configuration The inhomogeneity and structural complexity of continental crust causes faults to deviate from a straight course and frequently causes bends or step-overs in fault paths. Bends and step-overs of adjacent faults become favorable locations for extensional and compressional str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Sula Block
North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating direction or geography. Etymology The word ''north'' is related to the Old High German ''nord'', both descending from the Proto-Indo-European unit *''ner-'', meaning "left; below" as north is to left when facing the rising sun. Similarly, the other cardinal directions are also related to the sun's position. The Latin word ''borealis'' comes from the Greek '' boreas'' "north wind, north", which, according to Ovid, was personified as the wind-god Boreas, the father of Calais and Zetes. ''Septentrionalis'' is from ''septentriones'', "the seven plow oxen", a name of '' Ursa Major''. The Greek ἀρκτικός (''arktikós'') is named for the same constellation, and is the source of the English word '' Arctic''. Other languages have other derivations. For example, in Lezgian, ''kefe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Makassar Block
Makassar (, mak, ᨆᨀᨔᨑ, Mangkasara’, ) is the capital of the Indonesian province of South Sulawesi. It is the largest city in the region of Eastern Indonesia and the country's fifth-largest urban center after Jakarta, Surabaya, Medan, and Bandung.Ministry of Internal AffairsRegistration Book for Area Code and Data of 2013/ref> The city is located on the southwest coast of the island of Sulawesi, facing the Makassar Strait. Throughout its history, Makassar has been an important trading port, hosting the center of the Gowa Sultanate and a Portuguese naval base before its conquest by the Dutch East India Company in the 17th century. It remained an important port in the Dutch East Indies, serving Eastern Indonesian regions with Makassarese fishers going as far south as the Australian coast. For a brief period after Indonesian independence, Makassar became the capital of the State of East Indonesia, during which an uprising occurred. The city's area is , and it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1968 Sulawesi Earthquake
The 1968 Sulawesi earthquake struck Indonesia on August 14. It had a Richter magnitude scale, Richter magnitude of 7.4, spawned a large tsunami, and killed roughly 200 people. Damage and casualties The earthquake had a Richter magnitude of 7.4. It created a tsunami with wave heights of to , which soon traveled onto Sulawesi. The most extensive waves reached inland, destroying 700 homes and killing around 200 people. Geology The earthquake ruptured along Palu-Koro fault in Manimbaja Bay. It caused subsidence that decreased elevations by as much as to along the coast. It also appeared to tectonic uplift, uplift at least one of the Togian Islands. The earthquake was near the Celebes Sea; it sank the island of Tuguan. See also *2018 Sulawesi earthquake and tsunami *List of earthquakes in 1968 *List of earthquakes in Indonesia References External links * 1968 tsunamis 1968 earthquakes 1968 in Indonesia 1968 disasters in Indonesia Earthquakes in Indonesia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
