A submarine volcano called Fukutoku-Okanoba that lies 5 km northeast of Minami-Iwoto in the island chain is one of 10 such undersea geographical features around the Izu-Ogasawara Trench.

Typhoon No. 7 has formed over the seas south of Japan and is expected to move northward near the Ogasawara island chain ... said the typhoon may approach the Izu island chain by Aug. 13 after ...

Earlier, Japan issued a tsunami advisory for residents of the Izu and Ogasawara Islands after an earthquake with a preliminary magnitude of 5.9 struck in the Pacific Ocean near the uninhabited ...