A strong quake shook buildings in Tokyo on Monday, setting off alarms and temporarily bringing the city’s subway system to halt, AFP reporters in the Japanese capital said. Scientists said there was no risk of a tsunami from the quake, which had a magnitude of 5.3, according to the US Geological Survey. The Japan Meteorological Agency earlier put it at 5.6. Both runways at Narita Airport, the main international gateway to Tokyo, were temporarily closed so staff could check for any damage. Neither was affected.

Alarms on mobile phones and in buildings sounded as the quake developed with a series of vertical bounces, as well as a side-to-side shaking. The quake struck at a relatively shallow 35 kilometres (22 miles), the USGS said, putting its epicentre just 34 kilometres north of the heaving metropolis of Tokyo, one of the most densely populated areas in the world. FULL REPORT