It is most likely to have just been caused randomly by the three plates that board Japan or the rather small Chinese earthquake a day prior to the Japanese Earthquake and Tsunami.
on 11th march 2011 at 9.am earthquake occur exactly in japan
Because Japan is full of people
japan
japan
japan
cause japan is under sea level.
I'm going to go with Japan on this one.
The earthquake of Japan occured because Japan is on a major fault line.
japan
japan
Just a coincidence.
march 11,2011