More info on the Okinawa International University website

A neighborhood street cordoned off by US Marines

Rotor blades and other helicopter debris ripped through the neighborhoods on the other side of the street from the university. When Marines belatedly discovered that debris had been hurled hundreds of meters beyond the crash site, they sent out patrols to cordon off the debris until it could be removed. The TV antenna leaning against the gate was sheared off the roof of the adjacent house.