According to the Smithsonian Institution's Global Volcanic Program website, the area of Japan, Taiwan and the Mariana Islands is a very active area of the Pacific Ring of Fire, and most of the volcanoes in the area were formed as a result of the collapse of the oceanic plate moving westward under the Asian plate.
An underwater volcanic eruption (volcanic eruption) in recent days (November 2013) has created a tiny island off the coast of Japan. The Japanese Coast Guard released photographs and a video of the site of the eruption and the formation of the island. The footage showed heavy smoke, ash and rocks being shot out of the volcanic crater. The experts say that the diameter of the island is about 200 meters. It is located not far from the shores of the small, uninhabited island of Nishnoshima in the Ogasawara island chain, also known as the Beaver Islands, about a thousand kilometers south of Tokyo.
Only with time will we know if the island will remain in the ocean or if the water will overcome it, says Yoshihide Suga, a spokesman for the Japanese government, who added that there have already been such cases in the past and if the island does stabilize and survive, the government will be happy for any new territory."
On the same topic on the science website:
By site The Smithsonian Institution's Global Volcanic Program, the area of Japan, Taiwan and the Mariana Islands is a very active area in the Pacific Ring of Fire, and most of the volcanoes in the area were created as a result of the collapse of the oceanic plate moving west under the Asian plate. In the Iso-Mariana island chain, the western plate is also oceanic and it forms basaltic island arcs, where the volcanoes are much more active and explosive than the hot spots of the oceanic volcanoes.
