Maugris has been feeling vaguely unhelpful lately (until the big rush of events I was planning on having him actually say something to that effect). But a city in crisis is something he's got experience dealing with (even if it gives him flashbacks). He may make an attempt to get things organized and direct people toward tasks, probably somewhere near Pisces district. How long he's at this depends on how successful he is (i.e. if anybody listens to him). Once he thinks things are underway and/or realizes nobody much is listening to him, he's likely to head for the MAGI building or the Research Facility depending on who he can get working with him, if anyone. (He may or may not be under the impression that the show is actually being run out of the MAGI building.) He's likely to be attempting to take a leadership role in general... at least until he conks out at dawn, and after he wakes up again at sunset.

Erk will probably be trying to fight demons or heal injured people (that's what he has a staff for, after all). If someone points the idea out to him he may go in the direction of the power plant and try and restart things by pumping a Bolting into it, but he isn't entirely likely to stumble on it on his own. He could probably end up just about anywhere.