Yesterday morning I was woken yet again by another aftershock. This one was a 4.2. This 4.2 followed two that registered around 5.0 earlier this week. It is interesting how much you learn about earthquakes after going through one as large as a 7.0. The main thing I have learned is that earthquakes often come with a warning. A few seconds before the world starts to shake, you hear the earthquake coming. The noise is similar to the heater kicking on or an airplane flying past. So sometimes you experience that jolt of fear for no reason. Other times the noise is the reason you are woken at 6:16 am. Then you get to wait with bated breath for a few nerve wracking seconds to see how large the aftershock will be and whether or not your child will wake up crying.