New study just released yesterday:

Earthquakes in Tokyo will kill an estimated 23,000 and Nankai will kill 320,000

Another massive earthquake is expected to hit Japan, when a 9.0-magnitude earthquake with an epicenter in the Nankai Trough off central and western Japan will cause about ¥220 trillion in damage ( 200 Trillion more than the March 11 earthquake ), killing more than 300,000 people.

The worst case disaster scenario sees the Nankai quake striking at nighttime during the winter with strong winds helping to unleash tsunami up to 34 meters high.

This quake, well expected, could kill over 320,000 people ( compared with roughly 19,000 on 3/11 ) in 30 prefectures by tsunami generated by a massive earthquake in the trough which stretches for 750 kilometers from Kanto to Kyushu.

[link to www.onewayjapan.com]