number of earthquake in Japan

  The below graphs represent the number of earthquake observed (earthquake intensity (a Japanese earthquake standard) >= 1 ) with respect to magnitude in Japan in 2010 ~ 2012 Dec..

  Total number of recorded earthquakes (earthquake intensity (a Japanese earthquake standard) >= 1 )
 
  year : # earthquake in Japan
  -----------------------------------
  2010 : 1313.
  2011 : 10485
  2012 : 3140

 

 

 these graph come from the following site,
shaking Japan islands : http://jisin.jpn.org/index.html

 Some of the earthquake researchers says that Japan will have another big one in the near future, and the goverment is preparing for it.