According to a recent estimate, if a magnitude-9 quake hits the Japan Trench in winter late at night, some 199,000 people would die. If it occurs in the Chishima Trench, it projected that 100,000 ...

The most likely location for a megaquake in Japan is along the Nankai Trough, an 800km-long undersea trench near Japan’s Pacific coast, where the government panel said there was now more than 80 ...

New scans of the bottom of the Japan Trench reveal extensive burrow structures and evidence of regular "reset" events that help sea creatures survive in the ocean's deepest reaches.

The government was urged to amend a special law enacted in 2004 to prepare the public for a megaquake in either the Japan Trench that is part of the Pacific Rim of Fire off northeastern Japan or ...