Origin Contents. The arc of volcanoes is composed of 19 active volcanoes as the South American Plate subducts beneath the Caribbean Plate. Tectonic plates moving can cause tsunamis, earthquakes, and volcanoes The Red Sea was formed where the African and Arabian plates pulled apart. Large earthquakes are extremely common along convergent plate boundaries. The Arabian Plate is rifting away from the African plate along an active divergent ridge system, to form the Red Sea and Gulf of Aden. It moves northeastward as a result of the eruption of magmas along the Red Sea rift, which spreads annually at a rate of approximately 15 mm. The collision between the Arabian Plate and Eurasia is pushing up the Zagros Mountains of Iran. Active volcanoes in the volcanic arc The active volcanoes in the volcanic arc are stratovolcanoes with steep volcanic cones that formed by lava flows and pyroclastic eruptions. 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. White volcanoes is one of the very special places that is very difficult to reach and no tour organize trips there.

A large (70,000 square miles; 180,000 square km) alkali basalt province is located on the Arabian Plate in Saudi Arabia. Tectonic plates float on top of the hot liquid magma of the Earth's mantle like chunks of ice on a lake. The Arabian Plate lies completely in Asia. Some of them have erupted in historical times—and one threatened to wipe out the city of Madinah itself. This volcanism is related to the rifting of the Arabian and African plates and the formation of the Red Sea. Triple Junction: The Red Sea/East Africa The Afar region in Northern Ethiopia is the centre of a “Y” shaped rift system, where the continental lithosphere is being stretched and is splitting. However, other parts of Asia, Europe, and Africa border the Arabian Plate. In the past it was considered to be part of a larger Great Rift Valley that extended north to Asia Minor.. This subduction forms the volcanoes of Guatemala, El Salvador, Nicaragua, and Costa Rica, also known as the Central America Volcanic Arc. As you have to cross the rough harrat terrain it’s even … The rifting then extends southwards where the African Plate is itself becoming stretched along the line of the East African Rift Valley and is splitting to form two new plates; the Nubian and Somalian Plates. Pakistan’s mud volcanoes form as a result of plate tectonic activity.