I always ask my students, before we start studying plate tectonics, how many earthquakes they think happen in a year. They always think it is just a few. This is probably due to the fact that only a few are ever covered in the news, and these are the very destructive ones. Well here is a very cool video that you should let your students watch. It plots all the earthquakes that occurred in 2011 and also does sound effects. Let me know what you think!