Earthquake in Japan

A strong earthquake (~6.8 - the same size as the Gisborne quake in December) has shaken northern Japan, injuring almost 100 people, trapping hundreds in trains, and cutting power to over 6,000 homes. The Japan Meteorological Agency said there was no threat of a tsunami from the quake, which struck at 12:26am local time (3:26am NZT) and could be felt as far away as Tokyo. Today's quake follows a string of earthquakes in the same region, the first of which in mid-June killed at least 10 people.

EDIT: 3:50pm
There's been an aftershock there, at 2.27pm our time - measuring 5.0 on the Richter scale.