A supervolcanic eruption is almost certain sometime in the future
There is NO reason to believe that inconvienient geological events will stop happening just because we are here.... Like huge asteroid impacts its not likely to happen in an individuals lifetime, but when they do the results are horrible.
We PROBABLY currently have a better chance of deflecting a huge asteroid, than of stopping a mega-eruption in our own back yard. Podrock and Nick are the ones to answer this...