They could be a threat for your people. The garage is the only safe place around. Who dares to venture outside meets nothing but violence and destruction. The local leborins never suffered from outside eruptions, while the formerly prominent gitoa community was almost wiped out by these.

     Fortunately, the concept of eruption is now fully embedded in our daily lives, although some afiics tend to trigger manufactured and more harmful eruptions. They also made some smaller eruptions, for instance the famous "village hole" : it looks like a regular hole from the outside but in fact it is a huge maze inside.