A 5.3 magnitude earthquake hit Japan's Fukushima prefecture on Friday morning, but no tsunami warning was made, according to US seismologists.
According to The Japan Times, the epicenter of the earthquake was 22 km below the ground, and it struck 20 km west of Iwaki, bordering the Pacific Ocean, at 2:25 a.m.
The epicenter was also about 50 km southwest of the damaged Fukushima No. 1 Nuclear Power Station, which was crippled by the major quake and tsunami in March, 2011, the report said.
The quake, which registered shindo 5 on the Japanese seismic scale for the Fukushima area, was felt in Tokyo, 175 km away, the report added.
It came just hours after Prime Minister Shinzo Abe toured the nuclear plant on Thursday, ordering its operator Tokyo Electric Power to fix radioactive water leaks there, the report further said.