erosion phenomenon

The new island in Japan formed last month due to volcanic eruption is continuing to expand its area by 3 times its original size.

A small island appeared in Japan's territorial waters after the volcano erupted, marking the first time this special phenomenon occurred after 30 years.

The Japanese Navy saw smoke rising about 1000km south of Tokyo on November 20 and the coast guard then confirmed a new island was born around Ogasawara Islands.