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Ruang MPR
Ruang is the southernmost stratovolcano in the Sangihe Islands arc, North Sulawesi, Indonesia. It comprises an island wide. The summit contains a partial lava dome and reaches some in altitude. From its summit, Klabat's peak in the south, that of Siau to the north, and Ternate to the east can all be seen. Geology The top of the mountain is partially filled with a lava dome formed as a result of activity in 1904. Since then, volcanic activity has been observed with the formation of lava domes and pyroclastic flows. The island volcano is wide. Eruptions Pre-21st century At least 16 eruptions have been recorded from the volcano, with the first one occurring in 1808. Dr. Adolf Meyer witnessed a large eruption in 1871. Ruang was uninhabited at the time, but the inhabitants of nearby Tagulandang had many plantations on its slopes. The eruption destroyed these in minutes and caused a tsunami that obliterated most of their large village, situated on Tagulandang, opposite R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siau Tagulandang Biaro Islands Regency
Sitaro Islands Regency (, although its formal name is Kabupaten Kepulauan Siau Tagulandang Biaro) is a regency located off the northern extremity of Sulawesi Island in the southern Sangihe Islands, North Sulawesi Province, Indonesia. The regency was formed under ''Law Number 15 Year 2007'' from 2 January 2007 (), by separation from the Sangihe Islands Regency of which it had previously formed the southern part. The short form of the name is formed from one syllable from each of the names of the three principal islands — Siau, Tagulandang and Biaro. The main island is Siau, while further south (nearer Sulawesi) are Tagulandang and Biaro. The regency's area is 275.95 km2 and the total population was 63,801 at the 2010 censusBiro Pusat Statistik, Jakarta, 2011. and 71,817 at the 2020 census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2023 was 72,883.Badan Pusat Statistik, Jakarta, 28 February 2024, ''Kabupaten Kepulauan Siau Tagulandang Biaro Dalam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manado
Manado (, ) is the capital City status in Indonesia, city of the Indonesian Provinces of Indonesia, province of North Sulawesi. It is the second largest city in Sulawesi after Makassar, with the 2020 census giving a population of 451,916,Badan Pusat Statistik, Jakarta, 2021. and the official estimates for mid 2023 showing 458,582 inhabitants (229,982 males and 228,600 females),Badan Pusat Statistik, Jakarta, 28 February 2024, ''Kota Manado Dalam Angka 2024'' (Katalog-BPS 1102001.7171) distributed over a land area of 157.26 km2.Badan Pusat Statistik, Jakarta, 28 February 2024, ''Kota Manado Dalam Angka 2024'' (Katalog-BPS 1102001.7171) The Manado metropolitan area had a population of 1,377,815 as of mid 2023.Badan Pusat Statistik, Jakarta, 28 February 2024, ''Kota Manado Dalam Angka 2024'' (Katalog-BPS 1102001.7171) The city is situated on the Bay of Manado, and is surrounded by a mountainous area. Manado is among Indonesia's top-five tourism priorities and Bunaken National ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VEI-4 Volcanoes
The volcanic explosivity index (VEI) is a scale used to measure the size of explosive volcanic eruptions. It was devised by Christopher G. Newhall of the United States Geological Survey and Stephen Self in 1982. Volume of products, eruption cloud height, and qualitative observations (using terms ranging from "gentle" to "mega-colossal") are used to determine the explosivity value. The scale is open-ended with the largest eruptions in history given a magnitude of 8. A value of 0 is given for non-explosive eruptions, defined as less than of tephra ejected; and 8 representing a supervolcanic eruption that can eject (240 cubic miles) of tephra and have a cloud column height of over . The scale is logarithmic, with each interval on the scale representing a tenfold increase in observed ejecta criteria, with the exception of between VEI-0, VEI-1 and VEI-2. Classification With indices running from 0 to 8, the VEI associated with an eruption is dependent on how much volcanic materia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of North Sulawesi
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and climate, mountains te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratovolcanoes Of Indonesia
A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and explosive eruptions. Some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and solidifies before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high to intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less viscous mafic magma. Extensive felsic lava flows are uncommon, but can travel as far as 8 km (5 mi). The term ''composite volcano'' is used because strata are usually mixed and uneven instead of neat layers. They are among the most common types of volcanoes; more than 700 stratovolcanoes have erupted lava during the Holocene Epoch (the last 11,700 years), and many older, now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Volcanoes In Indonesia
The geography of Indonesia is dominated by volcanoes that are formed due to subduction zones between the Eurasian plate and the Australian plate, Indo-Australian plate. Some of the volcanoes are notable for their eruptions, for instance, Krakatoa for its global effects in 1883, the Lake Toba Caldera for its supervolcano, supervolcanic eruption estimated to have occurred 74,000 Before Present, years before present which was responsible for six years of volcanic winter, and Mount Tambora for the most violent eruption in recorded history in 1815. Volcanoes in Indonesia are part of the Alpide belt, alpida belt and Pacific Ring of Fire. The 150 entries in the list below are grouped into six geographical regions, four of which belong to the volcanoes of the Sunda Arc trench system. The remaining two groups are volcanoes of Halmahera, including its surrounding volcanic islands, and volcanoes of Sulawesi and the Sangihe Islands. The latter group is in one volcanic arc together with th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brunei
Brunei, officially Brunei Darussalam, is a country in Southeast Asia, situated on the northern coast of the island of Borneo. Apart from its coastline on the South China Sea, it is completely surrounded by the Malaysian state of Sarawak, with its territory bifurcated by the Sarawak district of Limbang District, Limbang. Brunei is the only sovereign state entirely on Borneo; the remainder of the island is divided between its multi-landmass neighbours of Malaysia and Indonesia. , the country had a population of 455,858, of whom approximately 180,000 resided in the Capital city, capital and largest city of Bandar Seri Begawan. Its official language is Malay language, Malay, and Islam is the state religion of the country, although Religion in Brunei, other religions are nominally tolerated. The government of Brunei is an absolute monarchy ruled by the Sultan, and it implements a fusion of English common law and jurisprudence inspired by Islam, including sharia. At the Bruneian Emp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borneo
Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda Islands, located north of Java Island, Java, west of Sulawesi, and east of Sumatra. The island is crossed by the equator, which divides it roughly in half. The list of divided islands, island is politically divided among three states. The sovereign state of Brunei in the north makes up 1% of the territory. Approximately 73% of Borneo is Indonesian territory, and in the north, the East Malaysian states of Sabah and Sarawak make up about 26% of the island. The Malaysian federal territory of Labuan is situated on a small island just off the coast of Borneo. Etymology When the sixteenth-century Portuguese explorer Jorge de Menezes made contact with the indigenous people of Borneo, they referred to their island as ''Pulu K'lemantang'', which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulphur Dioxide
Sulfur dioxide (IUPAC-recommended spelling) or sulphur dioxide (traditional Commonwealth English) is the chemical compound with the formula . It is a colorless gas with a pungent smell that is responsible for the odor of burnt matches. It is released naturally by volcanic activity and is produced as a by-product of metals refining and the burning of sulfur- bearing fossil fuels. Sulfur dioxide is somewhat toxic to humans, although only when inhaled in relatively large quantities for a period of several minutes or more. It was known to medieval alchemists as "volatile spirit of sulfur". Structure and bonding SO2 is a bent molecule with ''C''2v symmetry point group. A valence bond theory approach considering just ''s'' and ''p'' orbitals would describe the bonding in terms of resonance between two resonance structures. The sulfur–oxygen bond has a bond order of 1.5. There is support for this simple approach that does not invoke ''d'' orbital participation. In terms of el ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarawak
Sarawak ( , ) is a States and federal territories of Malaysia, state of Malaysia. It is the largest among the 13 states, with an area almost equal to that of Peninsular Malaysia. Sarawak is located in East Malaysia in northwest Borneo, and is bordered by the Malaysian state of Sabah to the northeast, Kalimantan (the Indonesian portion of Borneo) to the south, and Brunei in the north. The state capital, Kuching, is the largest city in Sarawak, the economic centre of the state, and the seat of the Sarawak state government. Other cities and towns in Sarawak include Miri, Malaysia, Miri, Sibu, and Bintulu. As of 2020 Malaysia census, the population of Sarawak was 2.453 million. Sarawak has an equatorial climate with tropical rainforests and abundant animal and plant species. It has several prominent cave systems at Gunung Mulu National Park. Rajang River is the longest river in Malaysia; Bakun Dam, one of the largest dams in Southeast Asia, is located on one of its tributaries, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabah
Sabah () is a States and federal territories of Malaysia, state of Malaysia located in northern Borneo, in the region of East Malaysia. Sabah has land borders with the Malaysian state of Sarawak to the southwest and Indonesia's North Kalimantan province to the south. The Federal Territory (Malaysia), Federal Territory of Labuan is an island just off Sabah's west coast. Sabah shares maritime borders with Vietnam to the west and the Philippines to the north and east. Kota Kinabalu is the state capital and the economic centre of the state, and the seat of the Government of Sabah, Sabah State government. Other major towns in Sabah include Sandakan and Tawau. The 2020 census recorded a population of 3,418,785 in the state. It has an equatorial climate with tropical rainforests, abundant with animal and plant species. The state has long mountain ranges on the west side which forms part of the Crocker Range National Park. Kinabatangan River, the second longest river in Malaysia runs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gorontalo Province
Gorontalo (Gorontalo language, Gorontaloan: ''Hulontalo'') is a Provinces of Indonesia, province of Indonesia on the island of Sulawesi. Located on the Minahasa Peninsula, Gorontalo was formerly part of the province of North Sulawesi until its inauguration as a separate province on 5 December 2000. The province is bordered by the provinces of North Sulawesi to the east and Central Sulawesi to the west, as well sharing a maritime border with the Philippines in the Sulawesi Sea to the north, and a coastline on the Gulf of Tomini to the south. The provincial capital, as well as the main gateway to the province and its most populated city, is Gorontalo (city), Gorontalo (also often called Hulontalo). The size is comparable to Vanuatu. The province covers a total land area of and had a population of 1,040,164 at the 2010 Census,Biro Pusat Statistik, Jakarta, 2011. and 1,171,681 at the 2020 Census;Badan Pusat Statistik, Jakarta, 2021. the official estimate as at mid 2023 was 1,213,18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
