At my airport, a lot of out checked luggage is screened underneath the airport, in an area where there is a lot of airline equipment...tugs, close to the tarmac, etc. I am not an expert on explosives, but if a grenade were to explode in this area, on the lowest level of the airport, near vehicles containing fuel, wouldn't that be a bad explosion? Wouldn't the structure of the airport be compromised, in a greater area than 90ft? I know it is near the tarmac, but I am not sure of how close the planes actually sit to this area, but couldn't one grenade explosion lead to other explosions that lead to bigger explosions?
I guess what I am saying/asking is that, if a grenade explodes and effects 45ft around...that is 45ft up,down, and to the sides...right? So if there are a lot of windows around, vehicles, oxygen tanks or anything else that would be in that area....wouldn't the safest thing be to evacuate?