Since Greece borders many seas and has many islands, even an earthquake in mainland Greece would still be able to affect the Southern coast of Italy, depending on the magnitude. The energy caused by the earthquake would be spread in a circle expanding from the center of the earthquake. It could easily reach the Ionian Sea west of Greece and if powerful enough, could send bigger than normal waves crashing onto the coasts of Italy’s regions of Sicily, Calabria, Basilicata, and Puglia
