"Japan will on Wednesday restart its second nuclear reactor after the Fukushima crisis closed the nation's atomic power plants, even as fresh concerns surfaced about the unit's positioning near a faultline."

"The Ohi No.4 reactor, 370 km (230 miles) west of Tokyo is scheduled to be restarted at 9 p.m. (0800 EDT), according to the operator, Kansai Electric Power Co. It is expected to reach full criticality by 6 a.m. on Thursday (1700 EDT on Wednesday).

The No.3 reactor at the station was reactivated earlier this month, to help avert possible power shortages more than a year after an earthquake and tsunami wrecked the Fukushima Daiichi nuclear power plant, triggering a series of meltdowns.

All 50 reactors operating in the country were subsequently taken off line for maintenance and tests."

Risa Maeda reports for Reuters July 18, 2012. [2]