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Rocks are created whenever there is a volcanic erruption. The cooling lava solidifies into new rock. There are volcanic erruptions happening all of the time, most of them under the Oceans.
Undersea Fleet was created in 1956.
Undersea Quest was created in 1954.
Undersea Trilogy was created in 1992.
Undersea City was created in 1958.
Jules' Undersea Lodge was created in 1986.
Naval Undersea Museum was created in 1995.
Undersea Kingdom was created on 1936-05-30.
The Undersea World of Jacques Cousteau was created in 1968.
Naval Undersea Warfare Center was created in 1869.
Svalbard Undersea Cable System was created in 2004.
Volcanoes - It is called a hot spot and as the earths crust moves over the spot, volcanoes form and in this case, created the chain of islands.They formed from a hot spot in earths crustThe Hawiian Islands are the tops of huge undersea volcanoes.The way the islands have formed, although far away from any fault, the area is a volcanic hot-spot. Back a couple million years, the crust beneath was thinning and rising. A series of undersea volcanic eruptions force volcanic material upwards, making the islands. The thinning of the crust, literally, moves southward to make other islands.It has to do wih tectonic plates