Volcano creates new island off Japanese coast.
Japan's coastguard and the country's Meteorological Agency said the islet was about 660ft in diameter and just off the coast of Nishinoshima, a small, uninhabited island in the Ogasawara chain, which is also known as the Bonin islands.
The 30-odd islands are 620 miles south of Tokyo and along with the rest of Japan are part of the seismicallyactive Pacific "Ring of Fire". The coastguard issued an advisory warning of heavy black smoke from the eruption.
Television footage showed heavy smoke and waters over the crater.
Smoke billows from a new island off the coast of Nishinoshima, seen left above, a small, uninhabited island in the Ogasawara chain, far south of Tokyo