ROME (AP) -- A powerful aftershock has hit the quake-struck areas of central Italy, rattling buildings as far away as Rome.

The temblor Monday had a 4.5 magnitude on the Richter scale and had its epicenter just north of L'Aquila, the city that was hardest hit by the earthquake in April, the Civil Protection said.

There were no immediate reports of damage or casualties.

Monday's quake struck just before 11 p.m. and was felt as far as the Italian capital, some 75 miles (120 kilometers) away.

The April 6 earthquake killed nearly 300 people, displaced some 50,000 and toppled entire blocks of buildings in L'Aquila and the surrounding Abruzzo region.