A magnitude 4.3 earthquake struck off the coast of Calabria in southern Italy early on Friday, the national geology and geophysics institute reported. The quake was followed several hours later by magnitude 2.3 and 2.5 tremors in the central Abruzzo region, and a magnitude 2.3 tremor in the northern Emilia-Romagna region, the institute said.
The quake off Calabria's northeast coast was registered at a depth of 227 kilometres at 4.38 am while the Abruzzo quakes were recorded in the province of L'Aquila - at 7.45 am, 2 kilometres northeast of Barete and at 8.00 am, 2 kilometers northwest of Camposto.
At 9.25, a fourth quake rocked Emilia-Romagna's province of Modena with an epicentre 2 kilometres southwest of the town of Camposanto, the national geology and geophysics institute said.
There were no immediate reports of casualties or damage to buildings or infrastructure caused by the quakes.
