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Mount Klabat
Mount Klabat is the highest volcano on Sulawesi island, located in the east of Manado city, North Sulawesi, Indonesia. A 170 × 250 m wide, shallow Volcanic crater lake, crater lake is found at the summit. There are no confirmed historical eruptions of the volcano. A report of eruption taking place in 1683 is thought to have been produced by the Mount Tongkoko volcano instead . See also * List of volcanoes in Indonesia * List of Ultras of Malay Archipelago References

Stratovolcanoes of Indonesia, Klabat Active volcanoes of Indonesia, Klabat Mountains of Sulawesi, Klabat Volcanoes of Sulawesi, Klabat Landforms of North Sulawesi Holocene stratovolcanoes {{NSulawesi-geo-stub ...
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Ultra Prominent Peak
An ultra-prominent peak, or Ultra for short, is a mountain summit with a topographic prominence of or more; it is also called a P1500. The prominence of a peak is the minimum height of climb to the summit on any route from a higher peak, or from sea level if there is no higher peak. There are approximately 1,524 such peaks on Earth. Some well-known peaks, such as the Matterhorn and Eiger, are not Ultras because they are connected to higher mountains by high cols and therefore do not achieve enough topographic prominence. The term "Ultra" originated with earth scientist Steve Fry, from his studies of the prominence of peaks in Washington (state), Washington in the 1980s. His original term was "ultra major mountain", referring to peaks with at least of prominence. Distribution Currently, 1,518 Ultras have been identified above sea level: 639 in Asia, 356 in North America, 209 in South America, 120 in Europe (including 12 in the Caucasus), 84 in Africa, 69 in Oceania, and 41 in ...
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Mount Tongkoko
Mount Tangkoko is a stratovolcano in the north of Sulawesi island in Indonesia. Its summit has an elongated deep crater. On the east flank, there is a flat lava dome Batu Angus. Historical records only show eruptions in the nineteenth century. The Tangkoko Batuangus Nature Reserve is a refuge for such species as the Celebes crested macaque and spectral tarsier. See also * Batuputih Natural Park * List of volcanoes in Indonesia References Citations Bibliography * * External links *Volcanological Survey of IndonesiaVolcanic hazard map of Tangkoko volcano, North Sulawesi provinceTangkoko volcano major historical eruptions
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Volcanoes Of Sulawesi
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide pa ...
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Mountains Of 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 300 metres (1,000 feet) 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 ...
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Active Volcanoes Of Indonesia
Active may refer to: Music * ''Active'' (album), a 1992 album by Casiopea * Active Records, a record label Ships * ''Active'' (ship), several commercial ships by that name * HMS ''Active'', the name of various ships of the British Royal Navy * USCS ''Active'', a US Coast Survey ship in commission from 1852 to 1861 * USCGC ''Active'', the name of various ships of the US Coast Guard * USRC ''Active'', the name of various ships of the US Revenue Cutter Service * USS ''Active'', the name of various ships of the US Navy Computers and electronics * Active Enterprises, a defunct video game developer * Sky Active, the brand name for interactive features on Sky Digital available in the UK and Ireland * Active (software), software used for open publishing by Indymedia; see Independent Media Center Sciences * Thermodynamic activity, measure of an effective concentration of a species in a mixture. * Activation, in chemistry the process whereby something is prepared for a su ...
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Stratovolcanoes Of Indonesia
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens 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 have travelled as far as . Stratovolcanoes are sometimes called composite volcanoes because of their composite stratified structure, built up from sequential outpourings of erupted materials. They are among the most common types of volcanoes, in contrast to the less common shield volcanoes. ...
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List Of Ultras Of Malay Archipelago
This is a list of ultra prominent peaks (with topographic prominence greater than 1,500 metres) in the Malay Archipelago, a group of over 25,000 islands which includes Brunei, Singapore, East Malaysia, Indonesia, the Philippines and East Timor. However, this list excludes ultras in the Philippines which are listed separately. Sumatra Java Lesser Sunda Islands Borneo Sulawesi Maluku Islands Papua See also * For a complete list of ultras located on the island of New Guinea, see List of Ultras of Oceania * For the list of ultras located in the Philippines, see List of Ultras of the Philippines * List of volcanoes in Indonesia SourcesListMap
{{Lists of Ultras

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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 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 supervolcanic eruption estimated to have occurred 74,000 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 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 the Philippine volcanoes. The most active volcano is Mount Merapi on Java. ...
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Volcanic Crater Lake
A volcanic crater lake is a lake in a crater that was formed by explosive activity or a collapse during a volcanic eruption. Formation Lakes in calderas fill large craters formed by the collapse of a volcano during an eruption. Lakes in maars fill medium-sized craters where an eruption deposited debris around a vent. Crater lakes form as the created depression, within the crater rim, is filled by water. The water may come from precipitation, groundwater circulation (often hydrothermal fluids in the case of volcanic craters) or melted ice. Its level rises until an equilibrium is reached between the rates of incoming and outgoing water. Sources of water loss singly or together may include evaporation, subsurface seepage, and, in places, surface leakage or overflow when the lake level reaches the lowest point on its rim. At such a saddle location, the upper portion of the lake is contained only by its adjacent natural volcanic dam; continued leakage through or surface outflow ac ...
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Ribu
A ribu is a mountain that reaches a topographic prominence of at least . "Ribu" is an Indonesian word meaning "thousand". In Indonesia and Malaysia, three categories of ribus are known according to the absolute height of the peak. The "Sangat Tinggi" (Indonesian for "very high") category is for peaks higher than 3,000 meters, "Tinggi Sedang" (Indonesian for "medium height") for peaks between 2,000 and 3,000 meters, and "Kurang Tinggi" (Indonesian for "less high") for peaks with an elevation of between 1,000 and 2,000 meters. Currently, a total of 270 ribus are known across the Indonesian archipelago, including those in Malaysia and East Timor. Some are popular hikes, such as Mount Rinjani, Mount Semeru, and Mount Kerinci, while others are much more obscure, and some do not even have official names. Some famous Indonesian mountains, such as Mount Bromo and Tangkuban Perahu, are not ribus because they are connected to higher peaks by high passes and therefore do not achieve enough to ...
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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 Guinea. Indonesia is the world's largest archipelagic state and the 14th-largest country by area, at . With over 275 million people, Indonesia is the world's fourth-most populous country and the most populous Muslim-majority country. Java, the world's most populous island, is home to more than half of the country's population. Indonesia is a presidential republic with an elected legislature. It has 38 provinces, of which nine have special status. The country's capital, Jakarta, is the world's second-most populous urban area. Indonesia shares land borders with Papua New Guinea, East Timor, and the eastern part of Malaysia, as well as maritime borders with Singapore, Vietnam, Thailand, the Philippines, Australia, Palau, and India ...
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North Sulawesi
North Sulawesi ( id, Sulawesi Utara) is a province of Indonesia. It is located on the Minahasa Peninsula of Sulawesi, south of the Philippines and southeast of Sabah, Malaysia. It borders the Philippine province of Davao Occidental and Soccsksargen regions of the Philippines to the north, the Maluku Sea to the east, Gorontalo and Celebes Sea to the west and the Gulf of Tomini to the southwest. With Miangas, it is the northernmost province of Indonesia. The province's area is , and its population was 2,270,596 according to the 2010 census; this rose to 2,621,923 at the 2020 Census, while the official estimate as at mid 2021 was 2,638,631. The province's capital and largest city is Manado, which is also the main gateway and the economic center of the province. Other major towns includes Tomohon and Bitung in the northern (Minahasa) half of the province, and Kotamobagu in the southern (Bolaang Mongondow) half. There are 41 mountains with an altitude ranging from . Most geologic ...
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