Strait of Rion

Strait of Rion

The Gulf of Corinth or the Corinthian Gulf (Κορινθιακός Kόλπος, Korinthiakόs Kόlpos, in Greek) is a deep inlet of the Ionian Sea separating the Peloponnese from western mainland Greece. It is bounded in the east by the Isthmus of Corinth which includes the shipping route of the Corinth Canal, and in the west by the Strait of Rion, which separates the Gulf of Corinth from the outer Gulf of Patras at Cape Drepano, where the narrowest point is crossed by the Rio-Antirio bridge. The Gulf of Corinth is almost surrounded by the prefectures of Aetolia-Acarnania, Phocis in the north, Boeotia in the northeast, Attica in the east, Corinthia in the southeast and south and Achaea in the southwest. The gulf is one of the most seismically active regions in Europe.

In medieval times, the gulf was known as the Gulf of Lepanto. The third Battle of Lepanto was fought here in 1571, destroying the Ottoman fleet. In 1772 another Turkish fleet was destroyed by the Russians at the entrance to the gulf. The town of Lepanto is now named Naupactus.

The shipping routes between Athens and to the ports of the rest of the world including the Mediterranean ports pass along this gulf. Ferry routes link Aigio and Agios Nikolaos in the western part of the gulf.

  • Length: 130 km (81 mi)
  • Width: 8.4 to 32 km (5.2 to 19.9 mi)
  • Max Depth 935 m (3,068 ft)


The Gulf is being created by the expansion of a tectonic rift due to the westward movement of the Anatolian Plate, and expands by 10 mm (0.39 in) per year.[1] The surrounding faults can produce earthquakes up to magnitude 6.8, though they are relatively uncommon.

Gulfs and Bays

  • Alkyonides Gulf, east
  • Crisaean Gulf, north
  • Dombraina (Domvrena), north
  • Strait of Rio, west


Cities and towns

The cities and towns that lie next to the gulf are:


Northern ebbing

Southern ebbing


External links

  • Atlas of the Gulf of Corinth
  • Photos of the Corinthian Gulf
  • Map of the Corinthian Gulf

Coordinates: 38°12′N 22°30′E / 38.200°N 22.500°E / 38.200; 22.500