NISA said on Aug. 30 that it has confirmed a total of 14 faults and other locations whose possibility of turning into active faults in the future cannot be ruled out near the Fukushima No. 1 and No. 2 nuclear power plants and Japan Atomic Power Co.’s Tokai No. 2 Power Station in Ibaraki Prefecture.
NISA had instructed plant operators to re-evaluate those locations after aftershocks following the March 11 Great East Japan Earthquake triggered the Yunotake fault in Iwaki, Fukushima Prefecture, to slip even though it had been believed to be inactive.
As a result of the re-evaluation, it emerged that five locations near the Fukushima nuclear plant, including the Yunotake fault, have a possibility of moving in the future due to crustal twists and increased seismic activity in the wake of the March 11 quake. A total of nine locations near the Tokai No. 2 Power Station and the Japan Atomic Energy Agency‘s Tokai nuclear fuel reprocessing plant were also revaluated.
Even if any of these faults and other locations ever slipped, the intensity of tremors would be within the scope of the assumption, and the existing plants have no problem in terms of their quake resistance, according to NISA.
NISA will put together the re-evaluation results shortly and submit them to the Nuclear Safety Commission of Japan.
- North Anna Nuke Plant: Quake May Have Exceeded Nuclear Plant’s Safety Specs (ex-skf.blogspot.com)
- Nuclear Industry cringes at implications of Fukushima Nuclear Disaster – Older plants facing more scrutiny and less hopes of re-licensing (enformable.com)
- NRC ramps up inspection at Va. nuclear plant; earthquake may have exceeded plant’s design base – Signs That Utilities Knew Of Shortfall (enformable.com)
- The Great Unknown – Experts split on how to decommission Fukushima nuclear plant – 50 Years May Not Be Enough Time (enformable.com)
- Nuclear power plants for settlements on the Moon and Mars (enformable.com)
- Leaked Documents Show US Lobbying for GE for China building plans for 50 nuclear power plants by 2020 using 60s era technology. (enformable.com)
- Israel mulls building nuclear plant while sidestepping nuclear treaties (enformable.com)
- Operational status of Japan’s nuclear power plants as of August 26 2011 (enformable.com)
- New TEPCO Photos of Sampling On-site at Fukushima Daiichi and Accumulated Water in Containment Vessel at Fukushima Daini (enformable.com)