TOKYO -- A moderate earthquake with a magnitude of 5.3 shook eastern Japan on Monday, the meteorological agency said.
There were no immediate reports of damage.
The earthquake was 40 kilometers (25 miles) deep with an epicenter in the Pacific Ocean off Fukushima prefecture, some 200 kilometers (125 miles) north of Tokyo.
The tremor was lightly felt in the capital, rattling buildings in the heart of the metropolis.
Japan experiences 20 percent of the world's major earthquakes.