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Fukushima Nuclear

Fukushima nuclear plant operator: Seismometers were broken

TOKYO (AP) — The operator of the wrecked Fukushima nuclear power plant said Monday that two seismometers at one of its three melted reactors have been out of order since last year and did not collect data when a powerful earthquake struck the area earlier this month. The acknowledgement raised new questions about whether the…

TOKYO (AP) — The operator of this wrecked Fukushima nuclear power plant said Monday two seismometers at one of its three melted reactors have been out of order since last year and did not collect information when a powerful earthquake struck the region earlier this month.
The acknowledgement raised new questions about whether the organization’s risk management has improved since a massive earthquake and tsunami in 2011 destroyed a lot of this plant.
The malfunctioning seismometers surfaced through a Nuclear Regulation Authority meeting on Monday to discuss new damage at the plant resulting from a magnitude 7.3 quake that struck the region on Feb. 13. Cooling pressure and water levels dropped in the Unit 1 and 3 reactors, signaling additional damage to their main containment chambers.
The operator, Tokyo Electric Power Co., has repeatedly been criticized for coverups and delayed disclosures of issues at the plant.
Regulatory officials asked TEPCO in the meeting why it did not possess seismological data in the Unit 3 reactor for Saturday’s quake, and utility officials acknowledged that both of its seismometers had neglected — one in July and the other in October — and had never been repaired.
TEPCO also said that seismometers at all but two of the reactor buildings which survived the 2011 tragedy were submerged by water in the tsunami and have never been replaced.
During Monday’s meeting, regulatory officials said they were worried about the declining water levels and pressure from the Unit 1 and 3 primary containment chambers due to the chance that the quake had enlarged the existing damage or opened new leakage paths, also advocated the utility to carefully check for any increased radiation levels in the ground water surrounding the reactor structures.
TEPCO said no…
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