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Adwa (volcano)
''Adwa'' (also known as Caaduba, Amoissa, or Dabita) (1733 m/5686 ft.) is a stratovolcano in Ethiopia, located in the western Somali Region region and has a 4 by 5 km caldera. Due to the location of the volcano near the boundary between Afar and Issa tribes, little is known about the past and present behavior of the volcano. However, an earthquake and InSAR study conducted by Derek Keir and colleagues shows that a magma intrusion around 5 km deep and 8 km long emanated away from the eastern side of the volcano in May 2000. See also *List of stratovolcanoes A list of stratovolcanoes follows below. Africa Cameroon * Mount Manengouba, Eboga stratovolcano * Little Mount Cameroon * Mount Cameroon * Mount Oku Democratic Republic of Congo * Mount Nyiragongo, Goma; designated as a Decade Volcano ... References Mountains of Ethiopia Stratovolcanoes of Ethiopia Calderas of Ethiopia {{Afar-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Volcanoes In Ethiopia
This is a list of volcanoes in Ethiopia. It includes both active and extinct vents. See also * List of mountains in Ethiopia * Geography of Ethiopia * Lists of volcanoes References {{Global Volcanism Program Lists of landforms of Ethiopia, Volcanoes Lists of volcanoes, Ethiopia Volcanoes of Ethiopia, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethiopia
Ethiopia, officially the Federal Democratic Republic of Ethiopia, is a landlocked country located in the Horn of Africa region of East Africa. It shares borders with Eritrea to the north, Djibouti to the northeast, Somalia to the east, Kenya to the south, South Sudan to the west, and Sudan to the northwest. Ethiopia covers a land area of . , it has around 128 million inhabitants, making it the List of countries and dependencies by population, thirteenth-most populous country in the world, the List of African countries by population, second-most populous in Africa after Nigeria, and the most populous landlocked country on Earth. The national capital and largest city, Addis Ababa, lies several kilometres west of the East African Rift that splits the country into the African Plate, African and Somali Plate, Somali tectonic plates. Early modern human, Anatomically modern humans emerged from modern-day Ethiopia and set out for the Near East and elsewhere in the Middle Paleolithi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratovolcano
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 ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Somali Region
The Somali Region (, , ), also known as Soomaali Galbeed () and officially the Somali Regional State, is a Regions of Ethiopia, regional state in eastern Ethiopia. It is the largest region of Ethiopia. The state borders the Ethiopian regions of Afar Region, Afar and Oromia to the west, as well as Djibouti to the north, Somaliland to the northeast, Somalia to the east and south; and Kenya to the southwest. Jijiga is the capital of the state. The Somali regional government is composed of the executive branch, led by the President; the legislative branch, which comprises the State Council; and the judicial branch, which is led by the State Supreme Court. History What is now the Somali Region was part of the Menelik II's conquests, conquests of Menelik II in the late 19th century. The Somali Region formed a large part of the pre-1995 provinces of Hararghe, Bale Province, Ethiopia, Bale and Sidamo Province, Sidamo. The population is predominantly Somali (ethnicity), Somali, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caldera
A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the structural integrity of such a chamber, greatly diminishing its capacity to support its own roof and any substrate or rock resting above. The ground surface then collapses into the emptied or partially emptied magma chamber, leaving a large depression at the surface (from one to dozens of kilometers in diameter). Although sometimes described as a Volcanic crater, crater, the feature is actually a type of sinkhole, as it is formed through subsidence and collapse rather than an explosion or impact. Compared to the thousands of volcanic eruptions that occur over the course of a century, the formation of a caldera is a rare event, occurring only a few times within a given window of 100 years. Only eight caldera-forming collapses are known to have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afar People
The Afar (), also known as the Danakil, Adali and Odali, are a Cushitic peoples, Cushitic ethnic group inhabiting the Horn of Africa. They primarily live in the Afar Region of Ethiopia and in northern Djibouti, as well as the entire southern coast of Eritrea. The Afar speak the Afar language, which is part of the East Cushitic languages, East Cushitic branch of the Afroasiatic languages, Afroasiatic family. Afars are the only inhabitants of the Horn of Africa whose traditional territories border both the Red Sea and the Gulf of Aden. Etymology The etymology of the term "Dankali" can be traced back to the Afar language and is derived from the words "dan" (meaning "people" or "nation") and "kali" (referring to the Afar Region). The term has been used for centuries to refer to the Afar people, their language, culture, and way of life. History Early history The earliest surviving written mention of the Afar is from the 13th-century Al-Andalus, Andalusian writer Ibn Said al-Maghri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Issa People
Issa or ISSA may refer to: People *Issa (name), a given name and surname * Kobayashi Issa (1763–1828), a Japanese poet *Issa or Isa, the Arabic name for Jesus in Islam *Issa, another name for the Native American Catawba people * El-Issa family *Issa (clan), a Somali clan that mainly inhabits Djibouti *Jane Siberry (born 1955), Canadian singer who released several albums under the name Issa *Issa, the nickname of Luttif Afif, a leader of the Black September terror squad at the 1972 Olympic Games Places * Issa (polis), the Ancient Greek and Roman name for both the town of Vis and the Adriatic island of Vis, in modern-day Croatia * Issa (Lesbos) (Ἴσσα), ancient town of Lesbos, Greece, formerly applied to the island as well *Issa (inhabited locality) (Исса), several inhabited localities in Russia **Issa, Penza Oblast **Issa, Pskov Oblast *Issa, Polish spelling of Isa (river) () * Issa (Ghana), town in Ghana Acronyms and abbreviations *Independent Schools Sports Associat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interferometric Synthetic-aperture Radar
Interferometric synthetic aperture radar, abbreviated InSAR (or deprecated IfSAR), is a radar technique used in geodesy and remote sensing. This geodetic method uses two or more synthetic aperture radar (SAR) radar imaging, images to generate maps of surface deformation or digital elevation map, digital elevation, using differences in the Phase (waves), phase of the waves returning to the satellite or aircraft. The technique can potentially measure millimetre-scale changes in deformation over spans of days to years. It has applications for geophysical monitoring of natural hazards, for example earthquakes, volcanoes and landslides, and in structural engineering, in particular monitoring of subsidence and structural stability. Technique Synthetic aperture radar Synthetic aperture radar (SAR) is a form of radar in which sophisticated processing of radar data is used to produce a very narrow effective beam. It can be used to form images of relatively immobile targets; moving ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derek Keir
Derek Keir (born 1979 Johannesburg, South Africa) has been an associate professor of geophysics at the University of Southampton since 2015. In 2013 he received the Bullerwell Lecture award from the British Geophysical Association (BGA) for significant contributions to geophysics. Education and career During 1998–2002 he read geology and geophysics at Imperial College London, gaining an MSc (first class). His PhD (Tectonics and Seismology) was conducted during 2002–2006 at Royal Holloway University of London. He also held a Teaching Fellowship in Geology at Royal Holloway during this time. His thesis was on the earthquake activity of the East African Rift. In 2007 he moved to the University of Leeds as a Natural Environment Research Council (NERC) research fellow and as Teaching Fellow in Geology. Keir was appointed Lecturer in Earth Science at University of Southampton in 2011 and became Associate Professor in Geophysics in 2015. His major contribution to science has bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Stratovolcanoes
A list of stratovolcanoes follows below. Africa Cameroon * Mount Manengouba, Eboga stratovolcano * Little Mount Cameroon * Mount Cameroon * Mount Oku Democratic Republic of Congo * Mount Nyiragongo, Goma; designated as a Decade Volcano ** It contains an active lava lake inside its crater which overflowed due to cracks in 2002. * Mount Mikeno * Mount Karisimbi * Mount Bisoke * Mount Sabyinyo * Mount Kahuzi Eritrea * Alid Volcano * Dubbi Volcano * Nabro Volcano Ethiopia * Adwa (volcano), Adwa * Aluto * Borawli, Afar Region * Mount Chilalo * Dabbahu Volcano * Mount Fentale Kenya * Mount Kenya, which contains several volcanic plugs on its peak. * Mount Longonot Rwanda * Mount Bisoke, on the border between Rwanda and the Democratic Republic of the Congo. * Mount Gahinga, on the border between Rwanda and Uganda. * Mount Karisimbi, on the border between Rwanda and the Democratic Republic of the Congo. * Mount Muhabura, on the border between Rwanda and Uganda. * Mount ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Ethiopia ...
This is a list of notable mountains in Ethiopia List Notes See also * Amba (geology) * List of volcanoes in Ethiopia * List of highest mountain peaks of Africa, with data on the 47 highest mountains of Ethiopia {{Africa topic, List of mountains in Mountains Ethiopia Ethiopia Ethiopia, officially the Federal Democratic Republic of Ethiopia, is a landlocked country located in the Horn of Africa region of East Africa. It shares borders with Eritrea to the north, Djibouti to the northeast, Somalia to the east, Ken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratovolcanoes Of Ethiopia
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] |
