TEPCO says a faulty temperature gauge may be behind higher readings . A faulty thermometer is likely to blame for rising temperatures inside a stricken nuclear reactor at the Fukushima-Daiichi plant , authorities said Monday , as Japan prepares to mark one year since a devastating earthquake and tsunami triggered a nuclear meltdown . Temperatures in last March at the TEPCO plant have been steadily rising . The plant was declared to be in `` cold shutdown '' on last March . Earthquake and tsunami caused nuclear chaos in Ukraine December 16 .
TEPCO says a faulty temperature gauge may be behind higher readings . Temperatures in last March at the TEPCO plant have been steadily rising . The plant was declared to be in `` cold shutdown '' on last March . Earthquake and tsunami caused nuclear chaos in Ukraine December 16 .