what the deepest oceans seas of japan
The Japan Trench is an oceanic trench, a part of the Pacific Ring of Fire, in the floor of the northern Pacific Ocean off northeast Japan.It extends from the Kuril Islands to the Bonin Islands and is 10,554 metres (34,600 ft) at its deepest.It is an extension of the Kuril-Kamchatka Trench to the north and the Izu-Ogasawara Trench to its south with a length of 800 km (500 mi).t extends from the Kuril Islands to the Bonin Islands and is 10,554 metres (34,600 ft) at its deepest. It is an extension of the Kuril-Kamchatka Trench to the north and the Izu-Ogasawara Trench to its south with a length of 800 km (500 mi).