Which sea lies between Sardinia and the Italian Peninsula?

The Tyrrhenian Sea lies between Sardinia and the Italian Peninsula.

It is a part of the Mediterranean Sea off Italy’s western coast. Sardinia and Corsica form much of its western boundary, while mainland regions including Tuscany, Lazio, Campania, Basilicata, and Calabria border it to the north and east. Sicily closes much of the sea to the south.

The sea’s name comes from the Tyrrhenians, the ancient Greek name for the Etruscans, who lived in central Italy. Beneath the water is a geologically active back-arc basin created by the retreat of the Calabrian subduction zone. That process helped produce deep basins, submarine volcanoes, and islands such as Stromboli and the Aeolian Islands.

A frequent confusion is with the Ligurian Sea. The Ligurian Sea is farther north, between Corsica and the Italian Riviera, while the Tyrrhenian Sea occupies the larger area east of Sardinia and south of the Italian mainland. The Strait of Bonifacio separates Sardinia from Corsica at the sea’s northwest edge.