April 15, 2013 11:38 pm Explosions Witness: “We Felt the Ground Shake” NBC10’s John Clark spoke with a Philadelphia man who heard and felt the deadly explosions at the Boston Marathon. US & World Videos 9:46 Another NJ earthquake: The Lineup 2:54 Penn leaders reiterate to pro-Palestinian protesters that they need to pack up camp 1:44 Pro-Palestinian protesters remain on UPenn's campus despite warnings to disband 1:30 Protests calling for ceasefire continue at Penn 6:33 Family affair: Former Eagle and new Eagle Jeremiah Trotter and Jeremiah Trotter Jr. speak out