Solar Flares

Learning about solar flares in class has been one of the most interesting things to me.  I think it is amazing how unpredictable they are and how they can affect of Earth.  It is fascinating to me to think about how a solar flare can wipe out our electronic systems.  Our book explains that the reason we lose electronics is due to the the geomagnetic storm that occurs when a solar flare happens.  It makes me wonder how vast of an area could lose power due to a geomagnetic storm and what would then happen.