A quake with a preliminary magnitude of 4.7 rattled a group of small islands in southwestern Japan but no tsunami warning was issued, the country's weather agency said.The quake occurred shortly before 10 p.m. in waters near the Tokara island chain and its depth was very shallow, the Japan Meteorological Agency said, adding it measured lower 5 on the Japanese seismic scale of 7 in Toshima, Kagoshima Prefecture.A lower 5 is defined by the agency as a situation in which many people would be frightened and feel the need to hold onto something stable, while dishes and books on the shelves may f…READ FULL ARTICLE