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© USGS
An earthquake measuring at 6.9 magnitude has struck off Honshu island in northern Japan, the US Geological Survey said. A tsunami warning has been issued for Iwate Prefecture.

The quake was recorded at around 8 am local time at a depth of approximately 10 kilometers. The epicenter was located off the Sanriku Coast, extending from southern Aomori prefecture, through Iwate prefecture and northern Miyagi prefecture.

Japan Meteorological Survey has issued a tsunami advisory for the Iwate Prefecture, warning that the waves may reach 1m in height.

Meanwhile, an evacuation order has been issued for coastal towns in Iwate prefecture. Thousands of people are reportedly leaving their homes while boats are sailing out of the harbor.

There were no irregularities reported at the Onagawa and Higashidori nuclear plants in nearby Miyagi and Aomori prefectures, the facilities' operator Tohoku Electric Power Co. said. A spokesman for TEPCO also reported no irregularities at Fukushima Daiichi and Fukushima Daini plants.