If your GM is willing to run with it, the maneuver is the best of these. Set up a scene aspect, tag it for effect, and let the GM compel all those people to stay put. Of course, this feeds fate points (at least one, anyway) to whoever mind controlled those poor innocent folks... but in exchange you get a barrier that they're simply not going to overcome.
One could also run this as a straight up attack - if you think you can get enough shifts to force a taken out result, you could just fire off a zone-wide earth "attack", describe it as trapping them, and narrate the taken out result as they're buried up to their necks in the ground and can't act. ...Of course, if they're willing to take consequences to keep going, this could get bad; a severe consequence of, say, a broken leg from someone who tried to keep moving could put you dangerously close to lawbreaker territory if you don't make sure they get rushed to a hospital (i.e. gives the GM good reason for a compel on your high concept)...
And the last thing I'd suggest is, instead of targetting a zone, target a zone border; that may not cost the +2 power to affect a full zone, and will still effectively stop them from chasing you - though it does open up the option that they might go around such a limited barrier.