A powerful quake with a preliminary magnitude of 7.5 struck northeastern Japan late Monday night, with the weather agency issuing a tsunami warning for coastal areas of Hokkaido as well as Aomori and Iwate prefectures before lifting it hours later.The Japan Meteorological Agency also said the quake, which occurred at 11:15 p.m. off Aomori's Pacific coast at a depth of 54 kilometers, raises the chance of a quake of a similar or even larger magnitude hitting the same area within the coming several days.It is the first time the agency has issued such an alert for the coastal regions of Hokkaid…READ FULL ARTICLE