The Great Rift Valley is a series of contiguous geographic depressions, approximately 6,000 or 7,000 kilometres (4,300 mi) in total length, the definition varying between sources, that runs from the southern Turkish Hatay Province in Asia, through the Red Sea, to Mozambique in Southeast Africa. While the name remains in some usages, it is rarely used in geology as it is considered an imprecise merging of rift and fault systems.
The East African Rift (EAR) or East African Rift System (EARS) is an active continental rift zone in East Africa. The EAR began developing around the onset of the Miocene, 22–25 million years ago. It was formerly considered to be part of a larger Great Rift Valley that extended north to Asia Minor.
The Afar Triangle is a geological depression caused by the Afar triple junction, which is part of the Great Rift Valley in East Africa. The region has disclosed fossil specimens of the very earliest hominins; that is, the earliest of the human clade, and it is thought by some paleontologists to be the cradle of the evolution of humans. The Depression overlaps the borders of Eritrea, Djibouti and the entire Afar Region of Ethiopia; and it contains the lowest point in Africa, Lake Assal, Djibouti, at 155 m (509 ft) below sea level.
Mount Zuqualla is an extinct volcano in the Oromia Region of Ethiopia. Situated in Ada'a Chukala woreda of the (East) Shewa Zone, it rises from the plain 30 kilometres (19 mi) south of Bishoftu. With a height of 3,010 metres (9,875 ft), it is known for its crater lake, lake Dembel, an elliptical crater lake with a maximum diameter of about one kilometre, but the trail around the crater is about 6 km long.
The Afar Region, formerly known as Region 2, is a regional state in northeastern Ethiopia and the homeland of the Afar people. Its capital is the planned city of Semera, which lies on the paved Awash–Assab highway. It is bordered by Eritrea to the north and Djibouti to the northeast; it also shares regional borders with the Tigray, Amhara, Oromo and Somali regions.
Mount Kinyeti is the highest peak in South Sudan. It is located in the Imatong Mountains in Ikotos County of Eastern Equatoria, near the Ugandan border. Kinyeti has an elevation of 3,187 metres (10,456 ft) above sea level. The group of high mountains that contain Kinyeti, extending to the border with Uganda, are sometimes called the Lomariti or Lolobai mountains.
The Afar Revolutionary Democratic Unity Front is an Afar political party in Ethiopia, founded in 1993. It had been a member of the United Ethiopian Democratic Forces (UEDF) coalition opposition party.
Erta Ale Range is the most important axial volcanic chain of the Afar Depression, Afar Region, Ethiopia. It consists mostly of shield volcanoes.
Tat Ali is a low Holocene shield volcano located in the northern part of the Afar Region of Ethiopia. This elevation is characterized as having an elongated summit depression that has produced a variety of rock types, ranging from basalts to pantellerites. NNW-SSE-trending fissures cutting the volcano have fed basaltic lava flows; those NE of Lake Afrera are of prehistoric date. Late-stage volcanism produced youthful basaltic lava flows on the floor of the summit depression, which is also the site of prominent fumarolic activity.
Mousa Ali is a 2,021 metres (6,631 ft) stratovolcano located on the tri-point of Ethiopia, Eritrea and Djibouti. The volcano is the highest point in Djibouti. The volcano's summit is truncated by a caldera, which contains rhyolitic lava domes and lava flows. The last known eruption occurred before the Holocene era.
Lake Afrera is a hypersaline lake in northern Ethiopia. Located in Kilbet Rasu, Afar Region, it is one of the lakes of the Danakil Depression. According to its entry in Lakenet, it has a surface area of 100 km2 (39 sq mi), although another source states the area is 125 km2 (48 sq mi). An unconfirmed report gives its depth as 160 m (525 ft); the lake is fed by underground streams.
Semera is the capital of Afar Region, Ethiopia. It is a town on the Awash–Assab highway in north-east Ethiopia, having been planned and built to replace Asaita. Located in Administrative Zone 1, Semera has a latitude and longitude of 11°47′32″N41°0′31″E. One of the completed buildings is Semera University, which began holding classes in 2007.
Mount Sabyinyo is an extinct volcano in eastern Africa in the Virunga Mountains. Mount Sabyinyo is the oldest volcano of the range. It is north-east of Lake Kivu, one of the African Great Lakes, and west of Lake Bunyonyi in Uganda. The summit of the mountain, at 3,669 metres (12,037 ft), marks the intersection of the borders of the Democratic Republic of the Congo (DRC), Rwanda, and Uganda, and holds religious significance for local tribes. It also is within the adjoining national parks established by these countries: Virunga National Park in the DRC, the Volcanoes National Park in Rwanda, and Mgahinga Gorilla National Park in Uganda.
Erta Ale is a continuously active basaltic shield volcano in the Afar Region of northeastern Ethiopia, which is itself part of the wider Afar Triangle. The volcano is located in the Danakil Depression, an area on the border between Ethiopia and Eritrea that is below sea level. It is the most active of the volcanoes in Ethiopia.
Berahle is a town in north-eastern Ethiopia. Located in Kilbet Rasu, Afar Region, this town has a latitude and longitude of 13°51′N40°01′E with an altitude of 639 meters above sea level. It is the largest town in Berhale woreda.
Dabbahu Volcano is an active volcano located in the remote Afar Region of Ethiopia. This stratovolcano is part of the Afar Triangle, a highly active volcanic region which includes Erta Ale. An eruption on September 26, 2005 created a large fissure in the ground, known as the Dabbahu fissure.
Dalaffilla, also called Gabuli, or Alu-Dalafilla is a 578 m (1,896 ft) high stratovolcano in Ethiopia. It is the highest point of Gulina. The only recorded eruption of Dalaffilla occurred in 2008 when lava flows from its western and northwestern flanks traveled to the northeast.
Mount Guna is a mountain and shield volcano located near the cities of Nefas Mewcha and Debre Tabor, in the northern Amhara Region of Ethiopia. It is the highest point in the South Gondar Zone, with an elevation of 4,120 metres (13,517 ft) above sea level.
Dallol is a unique, terrestrial hydrothermal system around a cinder cone volcano in the Danakil Depression, northeast of the Erta Ale Range in Ethiopia. It is known for its unearthly colors and mineral patterns, and the very acidic fluids that discharge from its hydrothermal springs.
