<p>A strong 7.1-magnitude earthquake struck late Saturday off the eastern coast of Japan but no tsunami warning was issued, Japanese authorities said.</p>.<p>The quake produced powerful shaking along parts of Japan's eastern coast, and was felt strongly in Tokyo, but there were no immediate reports of casualties.</p>.<p>Japan's meteorological agency said the quake hit at 11.08pm (1408GMT) at a depth of 60 kilometres (37 miles) in the Pacific, off Fukushima -- near the epicentre of a 2011 killer quake which triggered a towering tsunami and killed more than 18,000.</p>.<p>Saturday's quake was followed by aftershocks, including a 4.7 magnitude jolt, JMA said.</p>.<p>Local media reported power outages affecting hundreds of thousands of homes across the Tohoku region of eastern Japan.</p>.<p>Fukushima nuclear plant operator TEPCO said in a tweet it was checking on the status of the facility, which melted down in the wake of the 2011 tsunami.</p>.<p>Local media reported the quake threw dishes from shelves in houses in the region, but there were no immediate reports of damage.</p>.<p>Some trains in the region were stopped after the quake.</p>.<p>Prime Minister Yoshihide Suga was called to his office, and broadcaster NHK said the government would set up a special liaison office to coordinate with affected regions.</p>.<p>The US Geological Survey registered the quake as magnitude 7.0 at a depth of 54 kilometres.</p>.<p>Japan sits on the Pacific "Ring of Fire", an arc of intense seismic activity that stretches through Southeast Asia and across the Pacific basin.</p>
<p>A strong 7.1-magnitude earthquake struck late Saturday off the eastern coast of Japan but no tsunami warning was issued, Japanese authorities said.</p>.<p>The quake produced powerful shaking along parts of Japan's eastern coast, and was felt strongly in Tokyo, but there were no immediate reports of casualties.</p>.<p>Japan's meteorological agency said the quake hit at 11.08pm (1408GMT) at a depth of 60 kilometres (37 miles) in the Pacific, off Fukushima -- near the epicentre of a 2011 killer quake which triggered a towering tsunami and killed more than 18,000.</p>.<p>Saturday's quake was followed by aftershocks, including a 4.7 magnitude jolt, JMA said.</p>.<p>Local media reported power outages affecting hundreds of thousands of homes across the Tohoku region of eastern Japan.</p>.<p>Fukushima nuclear plant operator TEPCO said in a tweet it was checking on the status of the facility, which melted down in the wake of the 2011 tsunami.</p>.<p>Local media reported the quake threw dishes from shelves in houses in the region, but there were no immediate reports of damage.</p>.<p>Some trains in the region were stopped after the quake.</p>.<p>Prime Minister Yoshihide Suga was called to his office, and broadcaster NHK said the government would set up a special liaison office to coordinate with affected regions.</p>.<p>The US Geological Survey registered the quake as magnitude 7.0 at a depth of 54 kilometres.</p>.<p>Japan sits on the Pacific "Ring of Fire", an arc of intense seismic activity that stretches through Southeast Asia and across the Pacific basin.</p>