<p>A strong 5.9-magnitude earthquake struck early Thursday off the eastern coast of Japan, the US Geological Survey said, but no tsunami warning was issued.</p>.<p>The epicentre of the quake, which struck at a depth of 25.4 kilometres (16 miles), was located offshore about 41 kilometres southeast of Hasaki in Chiba prefecture, east of Tokyo.</p>.<p>The Japan Meteorological Agency, which put the magnitude at 6.2, said on its website that the quake "poses no tsunami risk".</p>.<p>The tremor, which struck at 4:47 am (1947 GMT Wednesday), was felt in the greater Tokyo area, local media reported.</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>In 2011, a devastating 9.0-magnitude earthquake struck off Miyagi prefecture, unleashing an enormous tsunami, triggering the Fukushima nuclear reactor meltdown and killing nearly 16,000 people. More than 2,500 others are still missing.</p>
<p>A strong 5.9-magnitude earthquake struck early Thursday off the eastern coast of Japan, the US Geological Survey said, but no tsunami warning was issued.</p>.<p>The epicentre of the quake, which struck at a depth of 25.4 kilometres (16 miles), was located offshore about 41 kilometres southeast of Hasaki in Chiba prefecture, east of Tokyo.</p>.<p>The Japan Meteorological Agency, which put the magnitude at 6.2, said on its website that the quake "poses no tsunami risk".</p>.<p>The tremor, which struck at 4:47 am (1947 GMT Wednesday), was felt in the greater Tokyo area, local media reported.</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>In 2011, a devastating 9.0-magnitude earthquake struck off Miyagi prefecture, unleashing an enormous tsunami, triggering the Fukushima nuclear reactor meltdown and killing nearly 16,000 people. More than 2,500 others are still missing.</p>