A magnitude 5.3 earthquake rocked Japan’s Fukushima prefecture early Friday morning, U.S. seismologists said, but no tsunami warning was issued.
The epicenter of the earthquake was 22 km below the ground, according to the U.S. Geological Survey. 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 Japan Meteorological Agency, which put the quake at magnitude 5.8, said no tsunami warning had been issued.
The quake, which registered shindo 5 on the Japanese seismic scale for the Fukushima area, was felt in Tokyo, 175 km away.
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.