East African Rift System, also called Afro-Arabian Rift Valley, one of the most extensive rifts on Earth’s surface, extending from Jordan in southwestern Asia southward through eastern Africa to Mozambique. The system is some 4,000 miles (6,400 km) long and averages 30–40 miles (48–64 km) wide.
How deep is the East African Rift?
The seismicity trends parallel to the rift system, with a shallow focal depth of 12–15 km (7.5–9.3 mi) beneath the rift axis. Further away from the rift axis, focal depths can be below 30 km (19 mi).
Which is the longest rift valley in the world?
|Earth||Great Rift Valley||6,000 km (3,700 mi)|
|Canadian Arctic Rift System||4,800 km (3,000 mi)|
|West Antarctic Rift System|
|Midcontinent Rift System||2,000 km (1,200 mi)|
What countries does the Rift Valley go through?
The Rift Valley consists of a group of independent interior basins, extending from Djibouti in the north to Tanzania in the south, nearly half being located in Ethiopia.
|Name of basin||Total area of basin||Area in the country|
|Southern lakes:||178 800|
What is the East African Rift an example of?
Continental rifting requires the existence of extensional forces great enough to break the lithosphere. The East African Rift is described as an active type of rift, in which the source of these stresses lies in the circulation of the underlying mantle.
How fast is Africa splitting apart?
The three plates are separating at different speeds. The Arabian plate is moving away from Africa at a rate of about 1 inch per year, while the two African plates are separating even slower, between half an inch to 0.2 inches per year, according to Macdonald.
Is the African rift lower than the ocean floor?
Although the Dead Sea is not the world’s deepest lake, the deep Jordan Rift makes it the lowest land elevation on Earth. The surface of the Dead Sea is 429 meters (1,407 feet) below sea level, and the lake’s depth is another 304 meters (997 feet).
What’s an example of a rift valley?
Very few active rift valleys are found on continental lithosphere. The East African Rift, the Baikal Rift Valley, the West Antarctic Rift, and the Rio Grande Rift are Earth’s major active continental rift valleys. The East African Rift is part of the “Great Rift Valley” system discussed below.
Who lives in the Great Rift Valley?
An estimated 1,000 to 1,500 Hadza live in the central Great Rift Valley and the surrounding plains in north-central Tanzania, where they subsist almost entirely off the land: hunting animals, foraging for roots and fruit, gathering honey.
What is the Great Rift Valley and why is it important?
The Rift Valley has been a rich source of fossils that allow study of human evolution, especially in an area known as Piedmont. Because the rapidly eroding highlands have filled the valley with sediments, a favourable environment for the preservation of remains has been created.
Which is the most beautiful valley in the world?
20 World’s Most Beautiful Valleys
- 1# Khumbu Valley – Nepal. …
- 2# Valley of the Ten Peaks – Canada. …
- 3# Barun Valley – Nepal. …
- 4# Lötschental Valley – Switzerland. …
- 5# Kaghan Valley – Pakistan. …
- 6# Valley of Flowers – India. …
- 7# Kalalau Valley – USA. …
- 8# Yosemite Valley – USA.