Honshu Quake number 2,317

I don't know the actual number, but it is easy to say it is a lot. Japan, found on the Pacific Rim, just happens to be in an earthquake zone. Look at the historic record of earthquakes at:

http://neic.usgs.gov/neis/eq_depot/2011/eq_110407_c0002ksa/neic_c0002ksa_h.html

Let us hope this one, even at 7.1, does not hurt anyone. And if you are interested Google "earthquake tourism".