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The Great Rift Valley is a name given in the late 19th century by British explorer John Walter Gregory to the continuous geographic trench, approximately 6,000 kilometres (3,700 mi) in length, that runs from northern Syria in Southwest Asia to central Mozambique in South East Africa.
The East African rift has two branches, the Western Rift Valley and the Eastern Rift Valley. The Western Rift, also called the Albertine Rift, is edged by some of the highest mountains in Africa, including the Virunga Mountains, Mitumba Mountains, and Ruwenzori Range. It contains the Rift Valley lakes, which include some of the deepest lakes in the world (up to 1,470 metres(4,800 ft) deep at Lake Tanganyika). Much of this area lies within the boundaries of national parks such as Virunga National Park in the Democratic Republic of Congo, Rwenzori National Park and Queen Elizabeth National Park in Uganda, and Volcanoes National Park in Rwanda. Lake Victoria is considered to be part of the rift valley system although it actually lies between the two branches. All of the African Great Lakes were formed as the result of the rift, and most lie within its rift valley. In Kenya, the valley is deepest to the north of Nairobi. As the lakes in the Eastern Rift have no outlet to the sea and tend to be shallow, they have a high mineral content as the evaporation of water leaves the salts behind. For example, Lake Magadi has high concentrations of soda (sodium carbonate) and Lake Elmenteita, Lake Bogoria, and Lake Nakuru are all strongly alkaline, while the freshwater springs supplying Lake Naivasha are essential to support its current biological variety
Magnitude mb 4.6
Date time 2012-04-17 02:01:27.0 UTC
Location 0.99 S ; 36.75 E
Depth 10 km
Distances 34 km NW Nairobi (pop 2,750,547 ; local time 05:01:27.7 2012-04-17)
29 km NW Ruiru (pop 114,371 ; local time 05:01:27.7 2012-04-17)
23 km NW Kiambu (pop 21,234 ; local time 05:01:27.7 2012-04-17)
17 km NE Limuru (pop 6,317 ; local time 05:01:27.7 2012-04-17)
Originally posted by BiggerPicture
thought africa was the only quake-immune continent for the long haul..
then heard about the huge crack opening only about 7 yrs ago in Ethiopia.. not that necessarily caused by quake