I wonder what implications, if any, this has for the Nankai trough.

I thought of the Nankai Trough as well.

I've said it all beore, but Japan says there is an 80% chance of a massive 8-9 quake hitting the Nankai Trough in the next 30 years. 80%!

If someone told you that you had an 80% chance of getting on a plane that was going to crash over the next 30 years, you'd never fly again, or I wouldn't at least. If you're living there, basically they're saying this IS going to happen and it's going to kill 100's of thousands of people.

This sort of ties in to our other discussion. We know this is going to happen, and yet people who live there go about their lives as if it isn't, seemingly in total denial.