Greek Prime Minister Kyriakos Mitsotakis appealed for calm Monday after a wave of seismic tremors hit the tourist island of Santorini, prompting concern among locals and hundreds of departures. Known for its spectacular cliffside views and a dormant volcano,

Despite dozens of minor earthquakes in recent days, Greek scientists have ruled out a massive earthquake hitting Greece's Santorini island.

The strongest earthquake recorded was magnitude 4.6 at 3:55 p.m. Sunday, at a depth of 14 kilometers (9 miles), the Athens Geodynamic Institute said.