The major risk is going to be that it happens with people still in the dorm. Cygnus was lucky, in a way; their dorm was empty when it happened. The structure itself is lost if the earth chooses to claim it, but if everyone in the teams at risk is prepared to evacuate at the first signs of the Old Man stirring, they should escape being dragged down with it. Making sure that someone is always on watch and aware would be a good precaution, I think.
My current theory is that once teams drop below a certain membership threshold, they become vulnerable; we haven't had a team of less than three since Delphinus first arrived, and the timing was suspiciously close. It could be coincidence, but it's all we have to go on at this point. Going by that metric, Orion is most at risk, followed by the rest of you.