Carrington Event happened during a similar Solar Maximum as this one

In fact, the biggest solar storm on record—the 1859 blast—happened during a solar maximum about the same size as the one we're entering, according to NASA.
That storm has been dubbed the Carrington Event, after British astronomer Richard Carrington, who witnessed the megaflare and was the first to realize the link between activity on the sun and geomagnetic disturbances on Earth.

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Solar Flare: What If Biggest Known Sun Storm Hit Today?

This is very concerning to humans on earth for a variety of reasons. The first reason this is problematic is that Earth's magnetosphere has been getting cracks in it since about 2005 and 2006 now. This allows more radiation that before the 2000s into the earth's atmosphere and all the way down to hitting the surface of the earth where we live. So, if you imagine the magnetosphere sort of like the imaginary "Force Fields" that the Starship Enterprise uses to protect itself from harm, the magnetosphere protects all life on earth from solar radiation and other types of electrical and magnetic harm from space. As the Magnetosphere continues to degrade (I believe the way we use and generate electricity has something to do with this) we are going to be harmed more by solar storms as life forms here on earth as the storms increase during these times of the peak of an 11 year sunspot cycle which we are now in until 2014 or 2015. It is all probabilities of course, but a Carrington Event could occur sometimes in the next 2 years or so. It would really be strange if it occurred on 12-21-12 but I think that likely couldn't happen, could it?

I couldn't estimate the probability of such an event. It would depend upon the amount of Solar Storms and if that one solar storm fired in the precise right direction to hit us. But if you look at the sun in relation to earth it appears to be a very small probability. But, then again we are still being hit with solar storms quite frequently the last couple of years. So, I guess again it is all probabilities? However, the more prepared we are for such an eventuality the less likely it will be catastrophic to us and our families if we are prepared. 

I know  many countries have dug (bomb shelter) like survival facilities undergroud for such an event and some richer individuals and land owning individuals and churches have done the same to prepare so at least some of them have food and water and shelter even if there is no electricity in the areas where they live around the earth.