A strong earthquake measuring magnitude Mw 6.8 occurred southwest of the island of Zakynthos in the Ionian Sea, near the coasts of Greece, during the night between 25 and 26 October 2018 at 22:54:51 UTC. 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. Magnitude 6.8 (mww), 14 km deep, 32 km SW of Lithakiá, Greece — 37.52°N, 20.56°E. October 25, 2018 at 22:54 UTC. Felt reports to USGS: 315. Wiki link https://earthquake.usgs.gov/earthquakes/eventpage/us1000hhb1 Data: US Geological Survey (public domain).