Government Experts say active fault situated below Shika nuclear plant

http://mainichi.jp/english/english/newsselect/news/20120718p2a00m0na012000c.html

What maniacs designed this stuff?

Experts on a Nuclear and Industrial Safety Agency (NISA) panel have pointed out that a fault situated just below the No. 1 reactor at the Shika Nuclear Power Plant in Ishikawa Prefecture is highly likely to be an active fault.

Moreover, many of them called for studies of a fault fracture zone, which lies below the premises of the Oi Nuclear Power Plant in Fukui Prefecture.

NISA is taking the opinions seriously and is poised to decide by the end of this month to conduct follow-up surveys on the possible impact that the faults will have on the respective power plants.

Economy, Trade and Industry Minister Yukio Edano told a news conference following a regular Cabinet meeting on July 17, “If expert opinions show it’s likely to be an active fault, we’ll take prompt action.”

NISA held a meeting of 16 experts, including those in the fields of quake resistance and faults, on July 17, in which many attendees pointed to the possibility that the so-called “S-1” fault below Shika plant’s No. 1 reactor building is an active fault that moved around 120,000 to 130,000 years ago, or possibly later.

The reactor could be forcibly decommissioned because the government’s guidelines for the quake-resistance of nuclear plants do not permit the construction of any nuclear reactors just above an active fault that moved anytime from 120,000 to 130,000 years ago.

An official of Hokuriku Electric Power Co. that operates the Shika plant reiterated its assertion that the fault was made as a result of corrosion by waves and will not trigger a powerful earthquake.

However, many of the experts countered by showing a drawing of the geographical structure of the area based on a survey and asserted that it is a typical active fault. They then called for a detailed survey on the site.

None of the experts ruled out the possibility that S-1 is an active fault, and some attendees criticized the government for approving the results of Hokuriku Electric Power’s survey on the fault without sufficiently confirming the details.

The utility has already submitted its primary assessment of its safety evaluation of the Shika plant’s No. 1 and 2 reactors, which is a prerequisite for reactivating them. NISA’s inspection on the No. 2 reactors has entered a final stage. However, since an additional survey is expected to take several months, there is a possibility that the resumption of operations at the reactor will be delayed.

Kansai Electric Power Co. submitted a new photo showing parts of a fault fracture zone situated below its Oi Nuclear Power Plant to the meeting of experts, and explained the condition of the fault. However, it failed to convince the experts.

“The entire picture of the fault remains unclear,” one of them said.

“We can’t expect to receive any more convincing materials. A survey needs to be conducted to judge whether it’s an active fault,” another pointed out.

The No. 3 reactor at the power station has already been reactivated and operations at the No. 4 reactor are scheduled to be resumed on July 18.

Shinichi Kuroki, deputy director general for nuclear power at NISA, denied that the experts’ opinions will affect operations at the Oi nuclear plant.

“I don’t think the safety of the plant has been denied. There’ll be no immediate impact on its operations,” he told reporters.

NISA is set to work out criteria on judging whether the faults below these power plants are active faults as well as details of follow-up surveys.

A new atomic power regulatory body to be launched in September is expected to determine whether these faults are active.

July 18, 2012(Mainichi Japan)

One Response to “Government Experts say active fault situated below Shika nuclear plant”

  1. CaptD Says:

    RE: What maniacs designed this stuff?

    Experts on a Nuclear and Industrial Safety Agency (NISA) panel have pointed out that a fault situated just below the No. 1 reactor at the Shika Nuclear Power Plant in Ishikawa Prefecture is highly likely to be an active fault.

    These nuclear designers and operators are all in Nuclear Denial* and or receiving some form of Nuclear Payback**.

    * http://is.gd/XPjMd0

    The illogical belief that Nature cannot destroy any land based nuclear reactor, any place anytime 24/7/365!

    ** http://www.urbandictionary.com/define.php?term=Nuclear+payback

    Those that support nuclear power because nuclear power somehow supports them; no matter what the health implications or other “costs” are for others.

    Liked and Tweeted…

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