According to the Yomiuri newspaper, which cited regional authorities, 13 people were hurt in the surrounding areas, including two elderly persons who suffered critical injuries.
Public broadcaster NHK said that numerous reports of damage to buildings, water pipes, and roadways had been verified.
No irregularities were observed at the Ikata nuclear power station, operated by Shikoku Electric Power, or the Sendai facility operated by Kyushu Electric Power in southern Japan, the Nuclear Regulation Authority said.
Be aware of another earthquake of up to five+ intensity scale in locations that had major jolts for about a week, the JMA warned. "In the past, 10% to 20% of powerful earthquakes were followed by a quake of the same magnitude," the JMA said in a statement.
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