The Cabinet Office has revised its guidelines on how companies and local governments should respond to emergency information ...

Megathrust earthquakes are large earthquakes that occur on faults found along the boundaries between tectonic plates. The Nankai Trough is a megathrust earthquake zone lying off the southwestern coast ...

(Web Desk) - Researchers from the University of Tokyo have developed an unmanned aerial vehicle (UAV) that can make ...

The Nankai subduction zone, in southern Japan, has hosted several large magnitude 8+ earthquakes during the last three ...

TOKYO (Jiji Press) — Up to 298,000 people are expected to be killed in Japan due mainly to a tsunami and building collapses if an earthquake of around magnitude 9 occurs in the Nankai Trough off ...

Under the government’s worst-case scenario, the next Nankai megathrust earthquake is projected to kill about 300,000 people — most of them likely to perish in the tsunamis reaching as high as ...

And in 2019 the now recently completed N-net (Nankai Trough Seafloor Observation Network for Earthquakes and Tsunamis) was begun; it presently covers the rest of the Nankai megathrust zone.

More information: Joshua R. Edgington et al, Migrating shallow slow slip on the Nankai Trough megathrust captured by borehole observatories, Science (2025).

All of this helps to inform models predicting earthquakes and tsunamis – with the potential to save thousands of lives. The last major Nankai Trough quake happened in 1946, with the loss of tens ...

The pattern of earthquake activity in the region over the last 1,400 years has seen "megaquakes" happening in the Nankai Trough every 100 to 200 years, says the Japanese government's Headquarters ...