At least 20 people were injured after a 5.7-magnitude earthquake struck central Japan on Sunday morning, local media reported. Injuries were reported in Aichi and Shizuoka prefectures, Tokyo-based Kyodo News reported, citing local authorities.
No tsunami warning was issued. The quake originated in western Shizuoka prefecture at a depth of about 40 kilometers (25 miles), according to the Japan Meteorological Agency.
The quake was the strongest to hit Aichi in about three decades. According to its operator, Chubu Electric Power Co., no abnormalities were detected at the Hamaoka nuclear power plant in Shizuoka.
The earthquake forced authorities to suspend some local rail services. A 4.3-magnitude earthquake struck Kumamoto prefecture in southwestern Japan on Sunday morning.
Japan, which sits on the Pacific Ring of Fire and sits directly on top of four major tectonic plates, is one of the most seismically active countries in the world. Kumamoto experienced a magnitude 7.1 earthquake on July 28.
