Kayna Whitworth has the latest on the 4.7 magnitude earthquake centered in Malibu that rattled millions in Southern California; Steve Osunsami has details on the pilot of an Alaska Airlines flight who was forced to abort takeoff in Nashville after a Southwest plane crossed the same runway; David Muir reports on the tech billionaire and three others who carried out the first-ever commercial spacewalk in history; and more on tonight's broadcast of World News Tonight with David Muir.