The U.S. Geological Survey says a magnitude 7.3 earthquake has hit the waters off of far eastern Russia. There were no immediate reports of damage or injuries and no tsunami was generated.

The quake hit just before 1 p.m. local time Tuesday. It was centered in the Pacific Ocean 100 miles east of Poronaysk, Russia, at a depth of more than 388 miles.

In Japan, the Meteorological Agency reported that there was no risk of a tsunami from the quake. Its readings showed the quake was mildly felt on the northern Japanese island of Hokkaido and in the northeastern section of Honshu, Japan's main island.