According to the Institute of United States Geological Survey (USGS), the epicenter of the earthquake was located 143 km east of Tokyo.
Location Uncertainty: horizontal +/- 13.4 km (8.3 miles); depth +/- 4.6 km (2.9 miles).
Depth : 17.9 km (11.1 miles).
No tsunami warning was triggered at the moment.
On March 11, the earthquake of magnitude 9.0 caused a tsunami more than 10 yards that hit the coast of northeastern Japan. The assessment of the disaster now stands at more than 15,000 dead.