Ile des Cendres
Encyclopedia
Ile des Cendres is a group of submarine volcano
es located off the southeast coast of Vietnam
. It consists of two submarine cinder cone
s that formed ephemeral islands during an eruption in 1923 and two submarine lava cones of uncertain age. The 1923 eruption produced two small islands, one about 30 m (98 ft) high and about 450 m (1,476 ft) long, and the other only 30 m (98 ft) wide and 30 cm (12 in) high. A third submarine cone reached to within 20 m (66 ft) of the surface. Additional submarine cones occur between Ile des Cendres and the Vietnam mainland (Bondarenko and Nadezhnyi, 1989).
Submarine volcano
Submarine volcanoes are underwater fissures in the Earth's surface from which magma can erupt. They are estimated to account for 75% of annual magma output. The vast majority are located near areas of tectonic plate movement, known as ocean ridges...
es located off the southeast coast of Vietnam
Vietnam
Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...
. It consists of two submarine cinder cone
Cinder cone
According to the , Cinder Cone is the proper name of 1 cinder cone in Canada and 7 cinder cones in the United States:In Canada: Cinder Cone In the United States:...
s that formed ephemeral islands during an eruption in 1923 and two submarine lava cones of uncertain age. The 1923 eruption produced two small islands, one about 30 m (98 ft) high and about 450 m (1,476 ft) long, and the other only 30 m (98 ft) wide and 30 cm (12 in) high. A third submarine cone reached to within 20 m (66 ft) of the surface. Additional submarine cones occur between Ile des Cendres and the Vietnam mainland (Bondarenko and Nadezhnyi, 1989).