An earthquake with a preliminary magnitude of 5.7 hit central Japan early Sunday, leaving over 20 people injured in Aichi and Shizuoka prefectures, authorities said.The 1:04 a.m. temblor originated in the western part of Shizuoka Prefecture at a depth of about 40 kilometers and registered upper 5 on the Japanese seismic intensity scale in Chita, Aichi, according to the Japan Meteorological Agency. No tsunami warning was issued.It was the biggest quake in about three decades to hit Aichi, home to manufacturers like Toyota Motor Corp. A quake measuring upper 5 was previously registered in the…READ FULL ARTICLE