An earthquake with a preliminary magnitude of 5.7 struck Japan's Shizuoka Prefecture early Sunday, the Japan Meteorological Agency (JMA) said, Xinhua reports.
According to the weather agency, the temblor occurred at around 1:04 a.m. local time at a depth of about 40 km, measuring upper 5 on Japan's 0-to-7 seismic-intensity scale in Chita City, Aichi Prefecture.
The quake's epicenter was located in the western part of Shizuoka Prefecture at a latitude of 34.9 degrees north and a longitude of 137.7 degrees east.
No tsunami warning has been issued.