Japan issued its first Nankai Trough emergency information in August last year following a major quake off Miyazaki ...

According to Japan's Earthquake Research Committee, there’s an 80 percent chance that a megaquake could occur in the Nankai Trough within the next 30 years. That's slightly up from the 70 to 80 ...

Japan's weather agency said Wednesday that data from an offshore tsunami gauge in the Pacific Ocean is currently unavailable, ...

Japan's weather agency said Friday that a malfunction in the ocean-floor observation system off the Pacific coast, installed ...

Megaquakes in the Nankai Trough have occurred every 100 to 200 years over the past 1,400 years, with the most recent one recorded in 1946, according to Japan’s Headquarters for Earthquake ...

Megathrust earthquakes are large earthquakes that occur on faults found along the boundaries between tectonic plates. The ...

The undersea, magnitude 9.0 “megathrust” earthquake—the worst in Japan’s recorded history—began in the Pacific seafloor 45 miles off the country’s eastern coast.

A quake with a preliminary magnitude of 6.9 struck the Kyushu region at 9:19 p.m. (0019 GMT) on Monday, the Japan Meteorological Agency said.

Tokyo, Japan - Megathrust earthquakes are large earthquakes that occur on faults found along the boundaries between tectonic plates. The Nankai Trough ...

In August, JMA issued an advisory that “the likelihood of a new major earthquake is higher than normal” in relation to the Nankai Trough, a 560 mi. oceanic trench to Japan’s south.

Monday’s temblor came months after a magnitude 7.1 earthquake struck the Hyuganada Sea in August, prompting the agency to issue its first-ever megaquake advisory for the Nankai Trough.