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Power restoration delayed at Fukushima nuke plant
Grayish smoke continued billowing from the plant's No.3 reactor building for more than 2 hours on Monday afternoon. What looked like steam later rose out of the No.2 reactor building.
The developments prompted the Tokyo Electric Power Company, or TEPCO, to order all personnel indoors, leading to a suspension of work to restore power to reactors No.1 to No.4.
Radiation levels rose near the plant's front gate, about 1 kilometer west of the reactors.
The radiation readings surged to 1,932 microsieverts per hour as of 6:30 PM Monday, compared to 494 microsieverts 50 minutes earlier.
TEPCO now says restoring power to the No.2 reactor's central control room will be delayed until Tuesday at the earliest.
Water-spraying operations were also called off, even though the utility had been preparing a new high-capacity vehicle to help douse the reactors.
TEPCO says radiation levels began declining within the compound at around 8PM on Monday. As of 5 AM Tuesday, the levels stood at 273.9 microsieverts per hour.
The government's nuclear safety agency says the brief spike in radiation was most likely caused by easterly winds, and that conditions appear to be stabilizing.
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