I just can't believe how people can put 2 and 2 together and come up with 513.
You are being fed media reports 24 hours a day from every corner of the world, so naturally all these disasters are being delivered almost weekly into your living rooms.
I was listening to Kevin McCue from the Australian Seismological Centre this morning. He said that the frequency of earthquakes varies, but we should expect around one 'great' earthquake a year. Apparently in 1908, there were 8 magnitude 8 earthquakes! He also said that want we are seing right now is nothing out of the norm.