As residents of the central Italian city L'Aquila slept on Sunday, a deadly earthquake hit the surrounding region. Entire blocks of buildings were destroyed, rendering an estimated 17,000 people homeless and causing the deaths of 179 people. According to the U.S. Geological Survey the quake registered a 6.3 magnitude, while Italy's National Institute of Geophysics recorded it as a 5.8. Aftershocks and inclement weather have been interfering with rescue efforts and an estimated 37 people are still missing. Prime Minister Silvio Berlusconi declared a state of emergency for the Abruzzo region, approximately 60 miles from Rome. For more we turn to the BBC's Rome Correspondent David Willey.