The unlimited waves and hoards of monsters that flood from out of the dungeons, the countless homes and cities that are destroyed, and the amount of death that is resulted from an Outage is ludicrous. Outages are certainly the most apocalyptic disaster that can take place in a Kingdom, Empire, or Dynasty.
Once an Outage is confirmed the best action to take is to completely abandon the Kingdom itself, for there is nothing anyone can do once the never-ending tides of monsters reach the surface. The chaos and destruction that could ensue during an Outage is immense and unpredictable.
Senior-Rank Mages and Archmages have rigorously considered all factors that cause such cataclysms. Over the long decades of experimenting and hypothesizing, their insights have led them to several conclusions to avoid these disasters, with the main one being dungeon sweeps.
