Ionian Islands (region) Ionian Islands (region) The Ionian Islands Region (, , ) is one of the thirteen administrative regions of Greece. The administrative region does not include all of the Ionian Islands; the island of Kythera, which historically was part of the island group, was separated and integrated to the (far away) Attica Region. The population of the Ionian Islands in 2011 was 207,855, decreased by 1,50% compared to the population in 2001. Nevertheless, the region remains the third by population density with 90.1/km² nationwide, well above the national of 81.96/km². The most populous of the major islands is Corfu with a
2018 Ionian Sea earthquake 2018 Ionian Sea earthquake A strong earthquake measuring magnitude occurred in the Ionian Sea near the coasts of Greece during the night between 25 and 26 October 2018 at 22:54:51 UTC (01:54:51 in Greece). Sea level changes were predicted, and a tsunami advisory was issued. Reports of sea level change of up to 20 centimeters were reported in Greece and Italy. The epicenter was located about 133 km from Patras. The earthquake occurred 14km below the surface. Power outages were reported on the island of Zakynthos, and a 15th century monastery was also damaged on the islands of Strofades. The