A few hours ago there was another earthquake in roughly the same area as the previous ones. This map from the United States Geological Survey shows just how many there have been over the past two days. All of these are greater than 4.5 Magnitude. Japan has a different scale that goes to 7 and it varies based on where one is from where the quake hits. My thoughts and prayers are with those of you all there in Kumamoto.
To give some frame of reference, Kumamoto is about 1200km from Tokyo…about the same distance as Jacksonville, FL from Washington, DC.