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The crumbling wreck of the Rocca Estense in Finale Emilia, in northern Italy, Sunday, May 20, 2012. A magnitude-6.0 earthquake shook northern Italy early Sunday, killing at least three people and toppling some buildings, emergency services and news reports said. The quake struck at 4:04 a.m. Sunday between Modena and Mantova, about 35 kilometers (22 miles) north-northwest of Bologna at a relatively shallow depth of 10 kilometers (6 miles), the U.S. Geological Survey said. (AP Photo/Luca Bruno)

Aftershocks rattle Italy

Thousands of people in northern Italy slept in tents and cars overnight as more than 100 aftershocks rocked the area hit by a magnitude 6.0 earthquake that killed seven people and inflicted heavy damage to centuries-old cultural sites, May 21.