This is a great app. You have no idea that there is so much activity going on across the world. Even if you aren't interested in geology you will find this App fun and interesting. You can adjust what activity you see, how close the earthquakes are and what intensity. I was able to see a nearby earthquake before it was reported by the news media and I can see major earthquakes (over 6.0) that are not reported by the media (for some reason). The fact that this app is free only makes it better (although I would be willing to pay for it). Just try it and you will get hooked!