Nature World: A tsunami warning has been issued for the northeastern coast of Japan after a 7.3-magnitude earthquake struck at sea early Saturday morning Japan time, Friday afternoon EDT
Fukushima prefecture, including the patch of coast home to the crippled Fukushima Dai-ichi nuclear reactor, which was destroyed by a tsunami in 2011, is included in the tsunami warning.
Tsunami as high as 1 meter (about 3 feet) could reach Japan's coast, according to reports, though waves of that height have yet to be reported....