Definition of «rift valley»

A rift valley is a long, narrow depression or trough in the Earth's surface caused by tectonic activity. It occurs when two sections of land move away from each other due to geological forces, creating a gap that fills with water and sediment over time to form a valley. Rift valleys are often associated with volcanic activity and can be found all around the world, including in Africa, Asia, Europe, and North America.

Sentences with «rift valley»

In Sudan, outbreak of Rift Valley fever is a large and recurring health problem. (sciencedaily.com)
Mosquitoes — and the viruses that they carry — are pushing up the incidence of malaria globally and causing periodic explosive outbreaks of Rift Valley fever, which first brings on flulike symptoms but can turn into a severe hemorrhagic fever akin to Ebola. (scientificamerican.com)
Ntchisi Forest Lodge sits on the escarpment of the East African Rift Valley in some of Malawi's last remaining indigenous rainforest in an isolated spot near Lilongwe, Malawi's capital. (search4holidayrentals.com)
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