The Golden Eagles hit 10/27 three-pointers, while Seton Hall only hit 1/11 from beyond the arc.
Kam Jones led the way for Marquette with 19 points on 7/11 shooting, David Joplin added 12 points, and Ben Gold chipped in 11 more.
Marquette will now play Villanova at home on Friday with tipoff set for 6 p.m.
