By Kiyoshi Takenaka TOKYO (Reuters) – An earthquake of magnitude 6 hit southwestern Japan on Thursday, bringing down some buildings, killing at least two people and injuring hundreds, local media said, but the nuclear regulator reported no problems at power plants. The initial tremor struck 11 km (7 miles) east of the city of Kumamoto, according to the U.S. Geological Survey (USGS). There was no tsunami warning, but one person was killed after being crushed by a collapsing building, and the other by a fire that broke out after the quake, with at least 400 people being treated at local hospitals, public broadcaster NHK said.
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