A 6.0-magnitude earthquake has hit northern Italy, reportedly killing at least six people and injuring 50 others. The quake struck some 36 km northwest of the city of Bologna and was followed by a powerful aftershock. Local officials say one man died in the locality of Bordeno when a warehouse collapsed during the quake. Two others were killed in a cave-in at a ceramics factory in Sant’Agostino di Ferrara. Two women have also died of heart attacks, triggered by shock during the earthquake report Italian authorities.