Japan's weather agency issued a tsunami alert late Saturday for wide areas facing the Pacific including the prefectures of Chiba, Shizuoka and Kagoshima, after an earthquake with a preliminary magnitude of 7.7 hit off the southern Philippine island of Mindanao.In the Philippines' Davao, an 8-centimeter tsunami was observed following the quake, which struck at 11:37 p.m., Japan time, an official of the Japan Meteorological Agency said at a press conference early Sunday in Tokyo.A tsunami warning was also issued for the coastal areas of Surigao del Sur and Davao Oriental provinces, said the P…READ FULL ARTICLE