6.9 Quake Hits Eastern Japan Wednesday Sep 4,2013

A strong earthquake struck wide areas of north-eastern and eastern Japan on Wednesday, the Meteorological Agency said. 

The U.S. Geological Survey measured the quake at 6.5 and said it was 404 km deep.

No tsunami warning was issued and there were no immediate reports of injuries or damage. 

The agency said the magnitude-6.9 quake struck at 9.19 a.m. (5.49 a.m. IST), and was centred off Torishima, 600 km south of Tokyo, at a depth of 400 km

The epicentre is in the Pacific, hundreds of kilometres (miles) south of Tokyo. We see no risk of a tsunami," a spokesman for the Japanese weather agency said.

Note
In March 2011, a magnitude 9.0 earthquake offshore of northeastern Japan, and ensuing tsunami, killed more than 18,000 people and devastated the coastline for hundreds of miles. It also crippled the Fukushima Daiichi nuclear power plant, causing meltdowns in three of its reactors