With regulations it seemed safe and even reasonable. But earthquakes don't care about regulations

Edit 3 hours later:
Right now, I am watching a TV show on the 2011 seism in Japan, specifically the mecanism of the seism, and the reasons why Japan failed to imagine more than a magnitude of 7.4 (while it reached 9, far far more than anticipated).
A seism occurs when an asperity reaches a maximum friction point and moves. There are litterally millions of such asperities near Japan, each having their own cycle and amplitude. What seismologs failed to understand was that they can influence each other, especially the big ones. And the biggest one was unknown because it has a cycle of hundreds of years. While this big one was insufficient to cause a magnitude of 9, it was enough to cause a cascade reaction with the millions of other ones, and all together caused a seism far longer and far stronger that could have been imaginable. As they say, the whole is more than the sum of its parts

Foreseeing that was difficult indeed, but when constructing powerful and dangerous devices such as nuclear plants, expecting the unexpected should be the norm. As I said earlier, earthquakes don't care about regulations, so don't try to force regulations down their throat, you could get them back real quick

The real sign that someone has become a fanatic is that he completely loses his sense of humor about some important facet of his life. When humor goes, it means he's lost his perspective.
Wedge Antilles
Star Wars - Exile