A strong earthquake struck northwestern Japan on Monday, causing a radioactive water leak and fire at one of the world’s most powerful nuclear power plants and turning buildings into piles of lumber. At least seven people were killed and hundreds injured.
The plant leaked about a half-gallon of water in a building housing one of its reactors, said Katsuya Uchino, a Tokyo Electric Power Co. official.
Uchino said the water contained a tiny amount of radioactive material — a billionth of the guideline under Japanese law — and is believed to have flushed into the Sea of Japan.
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