T he Japan Trench, a vast tectonic chasm along the Pacific Ring of Fire, is known for its extreme depth—stretching 5 miles below the ocean’s surface.Until now, this deep-sea environment has ...

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.

Jussi Hovikoski and colleagues analyzed 20 sediment cores from 7.5 km depth across the Japan Trench of Holocene sediments. X-ray scanning was used to examine the structure of the sediment and ...

The team sampled sediment cores from the Pacific Ocean’s Japan Trench off the coast of Honshu. The group studied the hadal zone—the deepest part of the ocean—at about 4.66 miles (7.5 ...

The estimate was made for a magnitude-9.1 earthquake in the Japan Trench, which stretches from off Tohoku to off Hidaka in Hokkaido, and a magnitude-9.3 earthquake in the Chishima Trench ...

The central government decided on Nov. 8 that in the event of a huge earthquake along the Japan Trench or the Chishima Trench, it will issue an alert warning of the potential for follow-up ...