The geologists headed by Dr. Kunihiko Shimazaki of the Nuclear Regulatory Authority are doing the second field survey in the only operating nuclear power plant in Japan, Ooi Nuclear Power Plant in Fukui Prefecture. They did the first survey last month, but there was an opinion expressed by one of the geologists that the fault may have been caused by a slide, and not an active fault. So they are conducting the second, expanded survey. The size of the trench is 80 meters long, double that of the first survey. (Information from ANN News)
Video from ANN News (12/27/2012):
The NRA has so far declared the faults in Tsuruga Nuke Plant and Higashidori Nuke Plant as "active". Geologists and NRA are almost laughing at Tohoku Electric's claim that what Higashidori Nuke Plant has is not an "active fault" but simply a swelling. They said if Tohoku Electric were correct, there would be an upheaval all around the world, because it would be news to all geologists.
If I remember right, the majority of the experts had declared the fault in Ooi Nuke Plant as "active" after the first survey. Dr. Shimazaki, deputy chairman of the Nuclear Regulatory Authority has said they will need to look at the geological structure under the reactor buildings at Kashiwazaki-Kariwa Nuclear Power Plant. Dr. Shunichi Tanaka, chairman of NRA, is quite nonplussed about criticisms from the industry, saying he is simply evaluating, based on science, and giving full freedom to the experts to express their candid assessment.
Who could have known that this organization would be actually doing its work.
The experts are about to start a press conference on site.