A MAGNITUDE 5.6 quake shook Tokyo on Monday, May 25, setting off alarms and temporarily bringing the subway system to a halt, a report from The Japan Times said.
The report said the quake shook buildings in Tokyo but that there was no risk of a tsunami from the quake.
It said that the quake was registered at magnitude 5.3 by the US Geological Survey, but the Meteorological Agency earlier put it at 5.6.
The runways at Narita International Airport were closed while staff checked for damage after the quake.
There were no immediate reports of injuries or any damage due to the quake, The Japan Times said.
The epicenter was located in the northern part of Saitama Prefecture. NHK reported the effects were felt over a large area around the capital.
There were no immediate reports of injuries or any damage, including at any of the shuttered nuclear power stations in the region.
The earthquake struck at about 2:28pm local time at a depth of 50km.
According to the US Geological Survey, the quake took place 34km from Tokyo, a city with a population over 13 million.
There are rigid building codes in Japan which is located at the junction of a number of tectonic plates. The country experiences around a fifth of the planet’s most powerful quakes every year, The Japan Times reported.