The Nankai Trough, where the Philippine Sea Plate is slipping under the Eurasia Plate at the bottom of the sea off the southwest coast of Japan, produces massive earthquakes about every 100-150 years.

Like the Great East Japan Earthquake and tsunami that triggered the Fukushima nuclear disaster in 2011, this is a type of earthquake that is of concern in the Nankai Trough. The plate shifted in ...

Geologists don't have a crystal ball that can foresee future earthquakes, but seismic specialists in the Japanese government believe that the odds of a big one are creeping upwards. According to Japan ...