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Semeru
The Semeru (), or Mount Semeru (, ) is an active volcano located in East Java, Indonesia. It is located in a subduction zone, where the Indo-Australian plate subducts under the Eurasia plate. It is the highest mountain on the island of Java. The name "Semeru" is derived from Meru, the central world mountain in Hinduism, or Sumeru, the abode of gods. This stratovolcano is Mahameru, meaning "The Great Mountain" in Sanskrit. It is one of the more popular hiking destinations in Indonesia. Geology Semeru rises steeply above the coastal plains of eastern Java. Maars containing crater lakes have formed along a line through the volcano's summit. It was formed south of the overlapping Ajek-ajek and Jambagan calderas. The eruptive products are andesitic. Semeru lies at the south end of the Tengger Volcanic Complex. Eruptive history Semeru's eruptive history is extensive. Since 1818, at least 55 eruptions have been recorded (11 of which resulted in fatalities) consisting of lava ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Java
East Java (, , ) is a Provinces of Indonesia, province of Indonesia located in the easternmost third of Java island. It has a land border only with the province of Central Java to the west; the Java Sea and the Indian Ocean border its northern and southern coasts, respectively, while the narrow Bali Strait to the east separates Java from Bali by around . Located in eastern Java (island), Java, the province also includes the island of Madura Island, Madura (which is connected to Java by the longest bridge in Indonesia, the Suramadu Bridge), as well as the Kangean Islands, Kangean islands and other smaller island groups located further east (in the northern Bali Sea) and the Masalembu Islands, Masalembu archipelago to the north. Its capital is Surabaya, the Largest cities in Indonesia, second largest city in Indonesia, a major industrial center and also a major business center. Banyuwangi is the largest regency in East Java and the largest on the island of Java. The province cover ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tengger Volcanic Complex
The Bromo (), or Mount Bromo (, ) is an active somma volcano, a Hindu pilgrimage site, and part of the Tengger mountains, in East Java, Indonesia. At it is not the highest peak of the massif, but is the most active and famous. The area is one of the most visited tourist destinations in East Java, and the volcano is included in the Bromo Tengger Semeru National Park. The name Bromo comes from the Javanese pronunciation of Brahma, the Hindu god of creation. At the mouth of the crater, there is an idol of Ganesha, the Hindu god of wisdom which is being worshipped by the Javanese Hindus. Mount Bromo is located in the middle of a plain called "Sea of Sand" (Javanese: Segara Wedi or Indonesian: Lautan Pasir), a nature reserve that has been protected since 1919. A typical way to visit Mount Bromo is from the nearby mountain village of Cemoro Lawang. From there it is possible to walk to the volcano in about 45 minutes, but it is also possible to take an organized jeep tour, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Java
Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, projected to rise to 158 million at mid 2025, Java is the world's List of islands by population, most populous island, home to approximately 55.7% of the Demographics of Indonesia, Indonesian population (only approximately 44.3% of Indonesian population live outside Java). Indonesia's capital city, Jakarta, is on Java's northwestern coast. Many of the best known events in Indonesian history took place on Java. It was the centre of powerful Hindu-Buddhist empires, the Islamic sultanates, and the core of the colonial Dutch East Indies. Java was also the center of the History of Indonesia, Indonesian struggle for independence during the 1930s and 1940s. Java dominates Indonesia politically, economically and culturally. Four of Indonesia's eig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soe Hok Gie
Soe Hok Gie (17 December 1942 – 16 December 1969) was a Chinese Indonesian activist who opposed the successive dictatorships of Presidents Sukarno and Suharto. Overview Soe was an ethnic Chinese Roman Catholic, the fourth of five children in his family. His father Soe Lie Piet was a literary writer and magazine editor, and his elder brother Arief Budiman was a sociologist and lecturer at Satya Wacana Christian University and a vocal critical voice in Indonesian politics. After spending his final years of senior high school at Kanisius, Soe attended the University of Indonesia (UI) from 1962 until 1969; upon finishing university he became a lecturer at his alma mater until his sudden death shortly before he was to turn 27. It was during his time as a student that Soe became an active dissident, protesting against President Sukarno and the PKI. Soe was a productive writer, with articles published in such newspapers as ''Kompas'', ''Harian Kami'', '' Sinar Harapan'', ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Islands By Highest Point
This is a list of islands in the world ordered by their highest point; it lists island, islands with peaks by elevation. At the end of this article continent, continental landmasses are also included for comparison. Island countries and territories listed are those containing the highest point. __TOC__ List of islands with highest point by elevation Other notable island peaks Many of the following islands are selected for inclusion as the main island or having the highest peak in their island nation. The list includes some dependent or semi-dependent island overseas territories with their own ISO 3166-1 country code. The dependencies of Guernsey (Alderney, Sark, Herm) and St. Helena (Tristan da Cunha, Ascension Island) are listed as separate units. Nevis (Saint Kitts-Nevis) is also listed separately. The islands of the former Netherlands Antilles (Aruba, Curaçao, Bonaire, Saint Martin, Sint Eustatius, Saba) have been split up in separate units. The list also includes o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Explosivity Index
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] |
Volcanic Crater Lake
A volcanic crater lake is a lake in a volcanic crater, crater that was formed by explosive eruption, explosive activity or a caldera, collapse during a types of volcanic eruptions, 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 Rim (craters), crater rim, is filled by water. The water may come from Precipitation (meteorology), precipitation, groundwater circulation (often Hot Spring, 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 u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Meru (mythology)
Mount Meru (Sanskrit/Pali: मेरु)—also known as Sumeru, Sineru or Mahāmeru—is a sacred, five-peaked mountain present within Hindu, Jain and Buddhist cosmologies, revered as the centre of all physical, metaphysical and spiritual universes. It is professed to be located at the junction of the four great cosmic continents—Pubbavideha Dīpa, Uttarakuru Dīpa, Amaragoyāna Dīpa and Jambu Dīpa. Despite not having a clearly identified or known geophysical location, Mount Meru is, nevertheless, always thought of as being either in the Himalayan Mountains or the Aravalli Range (in western India). Mount Meru is also mentioned in scriptures of other, external religions to India, such as Taoism—which was influenced, itself, by the arrival of Buddhism in China. Many Hindu, Jain and Buddhist temples have been built as symbolic representations of Mount Meru. The "Sumeru Throne" ( :zh:须弥座; ''xūmízuò'') style is a common feature of Chinese pagodas. The highest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunda Arc
The Sunda Arc is a volcanic arc that produced the volcanoes that form the topographic spine of the islands of Sumatra, Nusa Tenggara, Java, the Sunda Strait, and the Lesser Sunda Islands. The Sunda Arc begins at Sumatra and ends at Flores, and is adjacent to the Banda Arc. The Sunda Arc is formed via the subduction of the Indo-Australian Plate beneath the Sunda and Burma plates at a velocity of 63–70 mm/year. Formation and geologic setting Mid-oceanic ridge basalts (MORB) form most of the oceanic basin south of Sunda, according to geodynamic studies. These plates began to converge in the Early Miocene. The Indo-Australian Plate is subducting beneath the Eurasian Plate with a dip angle of 49–56 degrees. The slab subducting under Java is continuous down to the lower mantle. However, the slab appears to beak apart under Sumatra Island''.'' Earthquake depth records indicate that there is no deep seismic activity in Sumatra, likely due to the age of the subducting co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcano
A volcano is commonly defined as a vent or fissure 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 because most of Earth's plate boundaries are underwater, most volcanoes 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 resulting from divergent tectonic activity are usually non-explosive whereas those resulting from convergent tectonic activity cause violent eruptions."Mid-ocean ridge tectonics, volcanism and geomorphology." Geology 26, no. 455 (2001): 458. https://macdonald.faculty.geol.ucsb.edu/papers/Macdonald%20Mid-Ocean%20Ridge%20Tectonics.pdf Volcanoes can also form where there is str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maar
A maar is a broad, low-relief volcanic crater caused by a phreatomagmatic eruption (an explosion which occurs when groundwater comes into contact with hot lava or magma). A maar characteristically fills with water to form a relatively shallow crater lake, which may also be called a maar.David S.G. Thomas and Andrew Goudie (eds.), ''The Dictionary of Physical Geography'' (Oxford: Blackwell, 2000), 301. . Maars range in size from across and from deep. Most maars fill with water to form natural lakes. Most maars have low rims composed of a mixture of loose fragments of volcanic rocks and rocks torn from the walls of the diatreme. Etymology The name ''maar'' comes from a Moselle Franconian dialect word used for the circular lakes of the Daun area of Germany. The word evolved from its first use in German in the modern geological sense in 1819 and is now used in English and in the geological sciences as the term for the explosion crater, even if water from rainfall might alway ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
