People in Osaki, a city in Miyagi Prefecture, tried their cellphones after a 7.1 magnitude aftershock struck northeastern Japan on Thursday night, causing blackouts.Credit...Dai Kurokawa/European Pressphoto Agency TOKYO — The strongest aftershock to hit since the day of the March 11 earthquake and tsunami in Japan rocked a wide section of the country’s northeast on Thursday night, prompting a tsun
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