Italy's most powerful earthquake since 1980 has left more than 15,000 people homeless. <br/><br/>According to the country's civil protection agency, no-one was killed in the quake but 20 were injured and damage to the area round the town of Norcia is extensive. <br/><br/>The 6.6-magnitude quake struck near the central region where nearly 300 people were killed by a quake in August. Prime Minister Matteo Renzi is chairing a meeting of his cabinet to discuss emergency reconstruction.<br/><br/>The quake struck yesterday morning, destroying buildings or leaving them structurally unsafe in several towns and villages in the mountainous central region.