KESENNUMA, Japan – Monday’s quake rattled nerves one month to the day after 3-11, as Japanese call March 11’s triple seismic, ocean and nuclear disaster, echoing the U.S. reference to the 9-11 terrorist attacks. The aftershock weighed in at magnitude 6.6, far short of the 7.4 quake that rocked Japan Thursday, killing four.

The latest temblor briefly knocked out power at the crippled Fukushima Daiichi nuclear complex, which has been belching radiation as workers struggle to control its reactors. The quake occurred a few hours after 2:46 p.m. Monday, when people across Japan held a moment of silence to honor those who died exactly a month before.

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