Siculo-Calabrian rift

The Siculo-Calabrian rift is a zone of active extensional tectonics running about 200 km from northern Calabria to near Syracuse in Sicily.

[2] The Siculo-Calabrian rift zone extends southwards from the Crati valley in northern Calabria to near Catanzaro with a north-south trend.

It then passes through the Strait of Messina into the Ionian Sea with a north-south trend with most of the faults in this part of the rift zone lying offshore.

The initial result of the rollback was the formation of the Tyrrhenian Sea back-arc basin starting in the Miocene, continuing in to the Pleistocene.

[1] All of the faults in the Siculo-Calabrian rift show evidence of recent activity and virtually all of them are associated with historical earthquakes.