TOKYO, Oct. 26 (Xinhua) -- An earthquake with a preliminary magnitude of 5.7 struck off the coast of Japan's Miyagi prefecture on Friday, Japan Meteorological Agency said.

The temblor occurred at 3:36 a.m. local time, with the epicenter at a latitude of 38.2 degrees north and a longitude of 142.0 degrees east and at depth of 40 km.

The quake logged 4 in some parts of Miyagi prefecture and Iwate prefecture on the Japanese seismic intensity scale which peaks at 7.

So far no major damage or injuries were reported, and no tsunami warning has been issued.